Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

1 files changed, 0 insertions, 14326 deletions

diff --git a/contrib/llvm/tools/clang/lib/Sema/SemaChecking.cpp b/contrib/llvm/tools/clang/lib/Sema/SemaChecking.cpp
deleted file mode 100644
index f9f82cdeef43..000000000000
--- a/contrib/llvm/tools/clang/lib/Sema/SemaChecking.cpp
+++ /dev/null
@@ -1,14326 +0,0 @@
-//===- SemaChecking.cpp - Extra Semantic Checking -------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-//  This file implements extra semantic analysis beyond what is enforced
-//  by the C type system.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/AST/APValue.h"
-#include "clang/AST/ASTContext.h"
-#include "clang/AST/Attr.h"
-#include "clang/AST/AttrIterator.h"
-#include "clang/AST/CharUnits.h"
-#include "clang/AST/Decl.h"
-#include "clang/AST/DeclBase.h"
-#include "clang/AST/DeclCXX.h"
-#include "clang/AST/DeclObjC.h"
-#include "clang/AST/DeclarationName.h"
-#include "clang/AST/EvaluatedExprVisitor.h"
-#include "clang/AST/Expr.h"
-#include "clang/AST/ExprCXX.h"
-#include "clang/AST/ExprObjC.h"
-#include "clang/AST/ExprOpenMP.h"
-#include "clang/AST/FormatString.h"
-#include "clang/AST/NSAPI.h"
-#include "clang/AST/NonTrivialTypeVisitor.h"
-#include "clang/AST/OperationKinds.h"
-#include "clang/AST/Stmt.h"
-#include "clang/AST/TemplateBase.h"
-#include "clang/AST/Type.h"
-#include "clang/AST/TypeLoc.h"
-#include "clang/AST/UnresolvedSet.h"
-#include "clang/Basic/AddressSpaces.h"
-#include "clang/Basic/CharInfo.h"
-#include "clang/Basic/Diagnostic.h"
-#include "clang/Basic/IdentifierTable.h"
-#include "clang/Basic/LLVM.h"
-#include "clang/Basic/LangOptions.h"
-#include "clang/Basic/OpenCLOptions.h"
-#include "clang/Basic/OperatorKinds.h"
-#include "clang/Basic/PartialDiagnostic.h"
-#include "clang/Basic/SourceLocation.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Basic/Specifiers.h"
-#include "clang/Basic/SyncScope.h"
-#include "clang/Basic/TargetBuiltins.h"
-#include "clang/Basic/TargetCXXABI.h"
-#include "clang/Basic/TargetInfo.h"
-#include "clang/Basic/TypeTraits.h"
-#include "clang/Lex/Lexer.h" // TODO: Extract static functions to fix layering.
-#include "clang/Sema/Initialization.h"
-#include "clang/Sema/Lookup.h"
-#include "clang/Sema/Ownership.h"
-#include "clang/Sema/Scope.h"
-#include "clang/Sema/ScopeInfo.h"
-#include "clang/Sema/Sema.h"
-#include "clang/Sema/SemaInternal.h"
-#include "llvm/ADT/APFloat.h"
-#include "llvm/ADT/APInt.h"
-#include "llvm/ADT/APSInt.h"
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/FoldingSet.h"
-#include "llvm/ADT/None.h"
-#include "llvm/ADT/Optional.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallBitVector.h"
-#include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/Support/AtomicOrdering.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Support/ConvertUTF.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/Locale.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/SaveAndRestore.h"
-#include "llvm/Support/raw_ostream.h"
-#include <algorithm>
-#include <cassert>
-#include <cstddef>
-#include <cstdint>
-#include <functional>
-#include <limits>
-#include <string>
-#include <tuple>
-#include <utility>
-
-using namespace clang;
-using namespace sema;
-
-SourceLocation Sema::getLocationOfStringLiteralByte(const StringLiteral *SL,
-                                                    unsigned ByteNo) const {
-  return SL->getLocationOfByte(ByteNo, getSourceManager(), LangOpts,
-                               Context.getTargetInfo());
-}
-
-/// Checks that a call expression's argument count is the desired number.
-/// This is useful when doing custom type-checking.  Returns true on error.
-static bool checkArgCount(Sema &S, CallExpr *call, unsigned desiredArgCount) {
-  unsigned argCount = call->getNumArgs();
-  if (argCount == desiredArgCount) return false;
-
-  if (argCount < desiredArgCount)
-    return S.Diag(call->getEndLoc(), diag::err_typecheck_call_too_few_args)
-           << 0 /*function call*/ << desiredArgCount << argCount
-           << call->getSourceRange();
-
-  // Highlight all the excess arguments.
-  SourceRange range(call->getArg(desiredArgCount)->getBeginLoc(),
-                    call->getArg(argCount - 1)->getEndLoc());
-
-  return S.Diag(range.getBegin(), diag::err_typecheck_call_too_many_args)
-    << 0 /*function call*/ << desiredArgCount << argCount
-    << call->getArg(1)->getSourceRange();
-}
-
-/// Check that the first argument to __builtin_annotation is an integer
-/// and the second argument is a non-wide string literal.
-static bool SemaBuiltinAnnotation(Sema &S, CallExpr *TheCall) {
-  if (checkArgCount(S, TheCall, 2))
-    return true;
-
-  // First argument should be an integer.
-  Expr *ValArg = TheCall->getArg(0);
-  QualType Ty = ValArg->getType();
-  if (!Ty->isIntegerType()) {
-    S.Diag(ValArg->getBeginLoc(), diag::err_builtin_annotation_first_arg)
-        << ValArg->getSourceRange();
-    return true;
-  }
-
-  // Second argument should be a constant string.
-  Expr *StrArg = TheCall->getArg(1)->IgnoreParenCasts();
-  StringLiteral *Literal = dyn_cast<StringLiteral>(StrArg);
-  if (!Literal || !Literal->isAscii()) {
-    S.Diag(StrArg->getBeginLoc(), diag::err_builtin_annotation_second_arg)
-        << StrArg->getSourceRange();
-    return true;
-  }
-
-  TheCall->setType(Ty);
-  return false;
-}
-
-static bool SemaBuiltinMSVCAnnotation(Sema &S, CallExpr *TheCall) {
-  // We need at least one argument.
-  if (TheCall->getNumArgs() < 1) {
-    S.Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args_at_least)
-        << 0 << 1 << TheCall->getNumArgs()
-        << TheCall->getCallee()->getSourceRange();
-    return true;
-  }
-
-  // All arguments should be wide string literals.
-  for (Expr *Arg : TheCall->arguments()) {
-    auto *Literal = dyn_cast<StringLiteral>(Arg->IgnoreParenCasts());
-    if (!Literal || !Literal->isWide()) {
-      S.Diag(Arg->getBeginLoc(), diag::err_msvc_annotation_wide_str)
-          << Arg->getSourceRange();
-      return true;
-    }
-  }
-
-  return false;
-}
-
-/// Check that the argument to __builtin_addressof is a glvalue, and set the
-/// result type to the corresponding pointer type.
-static bool SemaBuiltinAddressof(Sema &S, CallExpr *TheCall) {
-  if (checkArgCount(S, TheCall, 1))
-    return true;
-
-  ExprResult Arg(TheCall->getArg(0));
-  QualType ResultType = S.CheckAddressOfOperand(Arg, TheCall->getBeginLoc());
-  if (ResultType.isNull())
-    return true;
-
-  TheCall->setArg(0, Arg.get());
-  TheCall->setType(ResultType);
-  return false;
-}
-
-/// Check the number of arguments, and set the result type to
-/// the argument type.
-static bool SemaBuiltinPreserveAI(Sema &S, CallExpr *TheCall) {
-  if (checkArgCount(S, TheCall, 1))
-    return true;
-
-  TheCall->setType(TheCall->getArg(0)->getType());
-  return false;
-}
-
-static bool SemaBuiltinOverflow(Sema &S, CallExpr *TheCall) {
-  if (checkArgCount(S, TheCall, 3))
-    return true;
-
-  // First two arguments should be integers.
-  for (unsigned I = 0; I < 2; ++I) {
-    ExprResult Arg = TheCall->getArg(I);
-    QualType Ty = Arg.get()->getType();
-    if (!Ty->isIntegerType()) {
-      S.Diag(Arg.get()->getBeginLoc(), diag::err_overflow_builtin_must_be_int)
-          << Ty << Arg.get()->getSourceRange();
-      return true;
-    }
-    InitializedEntity Entity = InitializedEntity::InitializeParameter(
-        S.getASTContext(), Ty, /*consume*/ false);
-    Arg = S.PerformCopyInitialization(Entity, SourceLocation(), Arg);
-    if (Arg.isInvalid())
-      return true;
-    TheCall->setArg(I, Arg.get());
-  }
-
-  // Third argument should be a pointer to a non-const integer.
-  // IRGen correctly handles volatile, restrict, and address spaces, and
-  // the other qualifiers aren't possible.
-  {
-    ExprResult Arg = TheCall->getArg(2);
-    QualType Ty = Arg.get()->getType();
-    const auto *PtrTy = Ty->getAs<PointerType>();
-    if (!(PtrTy && PtrTy->getPointeeType()->isIntegerType() &&
-          !PtrTy->getPointeeType().isConstQualified())) {
-      S.Diag(Arg.get()->getBeginLoc(),
-             diag::err_overflow_builtin_must_be_ptr_int)
-          << Ty << Arg.get()->getSourceRange();
-      return true;
-    }
-    InitializedEntity Entity = InitializedEntity::InitializeParameter(
-        S.getASTContext(), Ty, /*consume*/ false);
-    Arg = S.PerformCopyInitialization(Entity, SourceLocation(), Arg);
-    if (Arg.isInvalid())
-      return true;
-    TheCall->setArg(2, Arg.get());
-  }
-  return false;
-}
-
-static bool SemaBuiltinCallWithStaticChain(Sema &S, CallExpr *BuiltinCall) {
-  if (checkArgCount(S, BuiltinCall, 2))
-    return true;
-
-  SourceLocation BuiltinLoc = BuiltinCall->getBeginLoc();
-  Expr *Builtin = BuiltinCall->getCallee()->IgnoreImpCasts();
-  Expr *Call = BuiltinCall->getArg(0);
-  Expr *Chain = BuiltinCall->getArg(1);
-
-  if (Call->getStmtClass() != Stmt::CallExprClass) {
-    S.Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_not_call)
-        << Call->getSourceRange();
-    return true;
-  }
-
-  auto CE = cast<CallExpr>(Call);
-  if (CE->getCallee()->getType()->isBlockPointerType()) {
-    S.Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_block_call)
-        << Call->getSourceRange();
-    return true;
-  }
-
-  const Decl *TargetDecl = CE->getCalleeDecl();
-  if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(TargetDecl))
-    if (FD->getBuiltinID()) {
-      S.Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_builtin_call)
-          << Call->getSourceRange();
-      return true;
-    }
-
-  if (isa<CXXPseudoDestructorExpr>(CE->getCallee()->IgnoreParens())) {
-    S.Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_pdtor_call)
-        << Call->getSourceRange();
-    return true;
-  }
-
-  ExprResult ChainResult = S.UsualUnaryConversions(Chain);
-  if (ChainResult.isInvalid())
-    return true;
-  if (!ChainResult.get()->getType()->isPointerType()) {
-    S.Diag(BuiltinLoc, diag::err_second_argument_to_cwsc_not_pointer)
-        << Chain->getSourceRange();
-    return true;
-  }
-
-  QualType ReturnTy = CE->getCallReturnType(S.Context);
-  QualType ArgTys[2] = { ReturnTy, ChainResult.get()->getType() };
-  QualType BuiltinTy = S.Context.getFunctionType(
-      ReturnTy, ArgTys, FunctionProtoType::ExtProtoInfo());
-  QualType BuiltinPtrTy = S.Context.getPointerType(BuiltinTy);
-
-  Builtin =
-      S.ImpCastExprToType(Builtin, BuiltinPtrTy, CK_BuiltinFnToFnPtr).get();
-
-  BuiltinCall->setType(CE->getType());
-  BuiltinCall->setValueKind(CE->getValueKind());
-  BuiltinCall->setObjectKind(CE->getObjectKind());
-  BuiltinCall->setCallee(Builtin);
-  BuiltinCall->setArg(1, ChainResult.get());
-
-  return false;
-}
-
-/// Check a call to BuiltinID for buffer overflows. If BuiltinID is a
-/// __builtin_*_chk function, then use the object size argument specified in the
-/// source. Otherwise, infer the object size using __builtin_object_size.
-void Sema::checkFortifiedBuiltinMemoryFunction(FunctionDecl *FD,
-                                               CallExpr *TheCall) {
-  // FIXME: There are some more useful checks we could be doing here:
-  //  - Analyze the format string of sprintf to see how much of buffer is used.
-  //  - Evaluate strlen of strcpy arguments, use as object size.
-
-  if (TheCall->isValueDependent() || TheCall->isTypeDependent() ||
-      isConstantEvaluated())
-    return;
-
-  unsigned BuiltinID = FD->getBuiltinID(/*ConsiderWrappers=*/true);
-  if (!BuiltinID)
-    return;
-
-  unsigned DiagID = 0;
-  bool IsChkVariant = false;
-  unsigned SizeIndex, ObjectIndex;
-  switch (BuiltinID) {
-  default:
-    return;
-  case Builtin::BI__builtin___memcpy_chk:
-  case Builtin::BI__builtin___memmove_chk:
-  case Builtin::BI__builtin___memset_chk:
-  case Builtin::BI__builtin___strlcat_chk:
-  case Builtin::BI__builtin___strlcpy_chk:
-  case Builtin::BI__builtin___strncat_chk:
-  case Builtin::BI__builtin___strncpy_chk:
-  case Builtin::BI__builtin___stpncpy_chk:
-  case Builtin::BI__builtin___memccpy_chk: {
-    DiagID = diag::warn_builtin_chk_overflow;
-    IsChkVariant = true;
-    SizeIndex = TheCall->getNumArgs() - 2;
-    ObjectIndex = TheCall->getNumArgs() - 1;
-    break;
-  }
-
-  case Builtin::BI__builtin___snprintf_chk:
-  case Builtin::BI__builtin___vsnprintf_chk: {
-    DiagID = diag::warn_builtin_chk_overflow;
-    IsChkVariant = true;
-    SizeIndex = 1;
-    ObjectIndex = 3;
-    break;
-  }
-
-  case Builtin::BIstrncat:
-  case Builtin::BI__builtin_strncat:
-  case Builtin::BIstrncpy:
-  case Builtin::BI__builtin_strncpy:
-  case Builtin::BIstpncpy:
-  case Builtin::BI__builtin_stpncpy: {
-    // Whether these functions overflow depends on the runtime strlen of the
-    // string, not just the buffer size, so emitting the "always overflow"
-    // diagnostic isn't quite right. We should still diagnose passing a buffer
-    // size larger than the destination buffer though; this is a runtime abort
-    // in _FORTIFY_SOURCE mode, and is quite suspicious otherwise.
-    DiagID = diag::warn_fortify_source_size_mismatch;
-    SizeIndex = TheCall->getNumArgs() - 1;
-    ObjectIndex = 0;
-    break;
-  }
-
-  case Builtin::BImemcpy:
-  case Builtin::BI__builtin_memcpy:
-  case Builtin::BImemmove:
-  case Builtin::BI__builtin_memmove:
-  case Builtin::BImemset:
-  case Builtin::BI__builtin_memset: {
-    DiagID = diag::warn_fortify_source_overflow;
-    SizeIndex = TheCall->getNumArgs() - 1;
-    ObjectIndex = 0;
-    break;
-  }
-  case Builtin::BIsnprintf:
-  case Builtin::BI__builtin_snprintf:
-  case Builtin::BIvsnprintf:
-  case Builtin::BI__builtin_vsnprintf: {
-    DiagID = diag::warn_fortify_source_size_mismatch;
-    SizeIndex = 1;
-    ObjectIndex = 0;
-    break;
-  }
-  }
-
-  llvm::APSInt ObjectSize;
-  // For __builtin___*_chk, the object size is explicitly provided by the caller
-  // (usually using __builtin_object_size). Use that value to check this call.
-  if (IsChkVariant) {
-    Expr::EvalResult Result;
-    Expr *SizeArg = TheCall->getArg(ObjectIndex);
-    if (!SizeArg->EvaluateAsInt(Result, getASTContext()))
-      return;
-    ObjectSize = Result.Val.getInt();
-
-  // Otherwise, try to evaluate an imaginary call to __builtin_object_size.
-  } else {
-    // If the parameter has a pass_object_size attribute, then we should use its
-    // (potentially) more strict checking mode. Otherwise, conservatively assume
-    // type 0.
-    int BOSType = 0;
-    if (const auto *POS =
-            FD->getParamDecl(ObjectIndex)->getAttr<PassObjectSizeAttr>())
-      BOSType = POS->getType();
-
-    Expr *ObjArg = TheCall->getArg(ObjectIndex);
-    uint64_t Result;
-    if (!ObjArg->tryEvaluateObjectSize(Result, getASTContext(), BOSType))
-      return;
-    // Get the object size in the target's size_t width.
-    const TargetInfo &TI = getASTContext().getTargetInfo();
-    unsigned SizeTypeWidth = TI.getTypeWidth(TI.getSizeType());
-    ObjectSize = llvm::APSInt::getUnsigned(Result).extOrTrunc(SizeTypeWidth);
-  }
-
-  // Evaluate the number of bytes of the object that this call will use.
-  Expr::EvalResult Result;
-  Expr *UsedSizeArg = TheCall->getArg(SizeIndex);
-  if (!UsedSizeArg->EvaluateAsInt(Result, getASTContext()))
-    return;
-  llvm::APSInt UsedSize = Result.Val.getInt();
-
-  if (UsedSize.ule(ObjectSize))
-    return;
-
-  StringRef FunctionName = getASTContext().BuiltinInfo.getName(BuiltinID);
-  // Skim off the details of whichever builtin was called to produce a better
-  // diagnostic, as it's unlikley that the user wrote the __builtin explicitly.
-  if (IsChkVariant) {
-    FunctionName = FunctionName.drop_front(std::strlen("__builtin___"));
-    FunctionName = FunctionName.drop_back(std::strlen("_chk"));
-  } else if (FunctionName.startswith("__builtin_")) {
-    FunctionName = FunctionName.drop_front(std::strlen("__builtin_"));
-  }
-
-  DiagRuntimeBehavior(TheCall->getBeginLoc(), TheCall,
-                      PDiag(DiagID)
-                          << FunctionName << ObjectSize.toString(/*Radix=*/10)
-                          << UsedSize.toString(/*Radix=*/10));
-}
-
-static bool SemaBuiltinSEHScopeCheck(Sema &SemaRef, CallExpr *TheCall,
-                                     Scope::ScopeFlags NeededScopeFlags,
-                                     unsigned DiagID) {
-  // Scopes aren't available during instantiation. Fortunately, builtin
-  // functions cannot be template args so they cannot be formed through template
-  // instantiation. Therefore checking once during the parse is sufficient.
-  if (SemaRef.inTemplateInstantiation())
-    return false;
-
-  Scope *S = SemaRef.getCurScope();
-  while (S && !S->isSEHExceptScope())
-    S = S->getParent();
-  if (!S || !(S->getFlags() & NeededScopeFlags)) {
-    auto *DRE = cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts());
-    SemaRef.Diag(TheCall->getExprLoc(), DiagID)
-        << DRE->getDecl()->getIdentifier();
-    return true;
-  }
-
-  return false;
-}
-
-static inline bool isBlockPointer(Expr *Arg) {
-  return Arg->getType()->isBlockPointerType();
-}
-
-/// OpenCL C v2.0, s6.13.17.2 - Checks that the block parameters are all local
-/// void*, which is a requirement of device side enqueue.
-static bool checkOpenCLBlockArgs(Sema &S, Expr *BlockArg) {
-  const BlockPointerType *BPT =
-      cast<BlockPointerType>(BlockArg->getType().getCanonicalType());
-  ArrayRef<QualType> Params =
-      BPT->getPointeeType()->getAs<FunctionProtoType>()->getParamTypes();
-  unsigned ArgCounter = 0;
-  bool IllegalParams = false;
-  // Iterate through the block parameters until either one is found that is not
-  // a local void*, or the block is valid.
-  for (ArrayRef<QualType>::iterator I = Params.begin(), E = Params.end();
-       I != E; ++I, ++ArgCounter) {
-    if (!(*I)->isPointerType() || !(*I)->getPointeeType()->isVoidType() ||
-        (*I)->getPointeeType().getQualifiers().getAddressSpace() !=
-            LangAS::opencl_local) {
-      // Get the location of the error. If a block literal has been passed
-      // (BlockExpr) then we can point straight to the offending argument,
-      // else we just point to the variable reference.
-      SourceLocation ErrorLoc;
-      if (isa<BlockExpr>(BlockArg)) {
-        BlockDecl *BD = cast<BlockExpr>(BlockArg)->getBlockDecl();
-        ErrorLoc = BD->getParamDecl(ArgCounter)->getBeginLoc();
-      } else if (isa<DeclRefExpr>(BlockArg)) {
-        ErrorLoc = cast<DeclRefExpr>(BlockArg)->getBeginLoc();
-      }
-      S.Diag(ErrorLoc,
-             diag::err_opencl_enqueue_kernel_blocks_non_local_void_args);
-      IllegalParams = true;
-    }
-  }
-
-  return IllegalParams;
-}
-
-static bool checkOpenCLSubgroupExt(Sema &S, CallExpr *Call) {
-  if (!S.getOpenCLOptions().isEnabled("cl_khr_subgroups")) {
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_requires_extension)
-        << 1 << Call->getDirectCallee() << "cl_khr_subgroups";
-    return true;
-  }
-  return false;
-}
-
-static bool SemaOpenCLBuiltinNDRangeAndBlock(Sema &S, CallExpr *TheCall) {
-  if (checkArgCount(S, TheCall, 2))
-    return true;
-
-  if (checkOpenCLSubgroupExt(S, TheCall))
-    return true;
-
-  // First argument is an ndrange_t type.
-  Expr *NDRangeArg = TheCall->getArg(0);
-  if (NDRangeArg->getType().getUnqualifiedType().getAsString() != "ndrange_t") {
-    S.Diag(NDRangeArg->getBeginLoc(), diag::err_opencl_builtin_expected_type)
-        << TheCall->getDirectCallee() << "'ndrange_t'";
-    return true;
-  }
-
-  Expr *BlockArg = TheCall->getArg(1);
-  if (!isBlockPointer(BlockArg)) {
-    S.Diag(BlockArg->getBeginLoc(), diag::err_opencl_builtin_expected_type)
-        << TheCall->getDirectCallee() << "block";
-    return true;
-  }
-  return checkOpenCLBlockArgs(S, BlockArg);
-}
-
-/// OpenCL C v2.0, s6.13.17.6 - Check the argument to the
-/// get_kernel_work_group_size
-/// and get_kernel_preferred_work_group_size_multiple builtin functions.
-static bool SemaOpenCLBuiltinKernelWorkGroupSize(Sema &S, CallExpr *TheCall) {
-  if (checkArgCount(S, TheCall, 1))
-    return true;
-
-  Expr *BlockArg = TheCall->getArg(0);
-  if (!isBlockPointer(BlockArg)) {
-    S.Diag(BlockArg->getBeginLoc(), diag::err_opencl_builtin_expected_type)
-        << TheCall->getDirectCallee() << "block";
-    return true;
-  }
-  return checkOpenCLBlockArgs(S, BlockArg);
-}
-
-/// Diagnose integer type and any valid implicit conversion to it.
-static bool checkOpenCLEnqueueIntType(Sema &S, Expr *E,
-                                      const QualType &IntType);
-
-static bool checkOpenCLEnqueueLocalSizeArgs(Sema &S, CallExpr *TheCall,
-                                            unsigned Start, unsigned End) {
-  bool IllegalParams = false;
-  for (unsigned I = Start; I <= End; ++I)
-    IllegalParams |= checkOpenCLEnqueueIntType(S, TheCall->getArg(I),
-                                              S.Context.getSizeType());
-  return IllegalParams;
-}
-
-/// OpenCL v2.0, s6.13.17.1 - Check that sizes are provided for all
-/// 'local void*' parameter of passed block.
-static bool checkOpenCLEnqueueVariadicArgs(Sema &S, CallExpr *TheCall,
-                                           Expr *BlockArg,
-                                           unsigned NumNonVarArgs) {
-  const BlockPointerType *BPT =
-      cast<BlockPointerType>(BlockArg->getType().getCanonicalType());
-  unsigned NumBlockParams =
-      BPT->getPointeeType()->getAs<FunctionProtoType>()->getNumParams();
-  unsigned TotalNumArgs = TheCall->getNumArgs();
-
-  // For each argument passed to the block, a corresponding uint needs to
-  // be passed to describe the size of the local memory.
-  if (TotalNumArgs != NumBlockParams + NumNonVarArgs) {
-    S.Diag(TheCall->getBeginLoc(),
-           diag::err_opencl_enqueue_kernel_local_size_args);
-    return true;
-  }
-
-  // Check that the sizes of the local memory are specified by integers.
-  return checkOpenCLEnqueueLocalSizeArgs(S, TheCall, NumNonVarArgs,
-                                         TotalNumArgs - 1);
-}
-
-/// OpenCL C v2.0, s6.13.17 - Enqueue kernel function contains four different
-/// overload formats specified in Table 6.13.17.1.
-/// int enqueue_kernel(queue_t queue,
-///                    kernel_enqueue_flags_t flags,
-///                    const ndrange_t ndrange,
-///                    void (^block)(void))
-/// int enqueue_kernel(queue_t queue,
-///                    kernel_enqueue_flags_t flags,
-///                    const ndrange_t ndrange,
-///                    uint num_events_in_wait_list,
-///                    clk_event_t *event_wait_list,
-///                    clk_event_t *event_ret,
-///                    void (^block)(void))
-/// int enqueue_kernel(queue_t queue,
-///                    kernel_enqueue_flags_t flags,
-///                    const ndrange_t ndrange,
-///                    void (^block)(local void*, ...),
-///                    uint size0, ...)
-/// int enqueue_kernel(queue_t queue,
-///                    kernel_enqueue_flags_t flags,
-///                    const ndrange_t ndrange,
-///                    uint num_events_in_wait_list,
-///                    clk_event_t *event_wait_list,
-///                    clk_event_t *event_ret,
-///                    void (^block)(local void*, ...),
-///                    uint size0, ...)
-static bool SemaOpenCLBuiltinEnqueueKernel(Sema &S, CallExpr *TheCall) {
-  unsigned NumArgs = TheCall->getNumArgs();
-
-  if (NumArgs < 4) {
-    S.Diag(TheCall->getBeginLoc(), diag::err_typecheck_call_too_few_args);
-    return true;
-  }
-
-  Expr *Arg0 = TheCall->getArg(0);
-  Expr *Arg1 = TheCall->getArg(1);
-  Expr *Arg2 = TheCall->getArg(2);
-  Expr *Arg3 = TheCall->getArg(3);
-
-  // First argument always needs to be a queue_t type.
-  if (!Arg0->getType()->isQueueT()) {
-    S.Diag(TheCall->getArg(0)->getBeginLoc(),
-           diag::err_opencl_builtin_expected_type)
-        << TheCall->getDirectCallee() << S.Context.OCLQueueTy;
-    return true;
-  }
-
-  // Second argument always needs to be a kernel_enqueue_flags_t enum value.
-  if (!Arg1->getType()->isIntegerType()) {
-    S.Diag(TheCall->getArg(1)->getBeginLoc(),
-           diag::err_opencl_builtin_expected_type)
-        << TheCall->getDirectCallee() << "'kernel_enqueue_flags_t' (i.e. uint)";
-    return true;
-  }
-
-  // Third argument is always an ndrange_t type.
-  if (Arg2->getType().getUnqualifiedType().getAsString() != "ndrange_t") {
-    S.Diag(TheCall->getArg(2)->getBeginLoc(),
-           diag::err_opencl_builtin_expected_type)
-        << TheCall->getDirectCallee() << "'ndrange_t'";
-    return true;
-  }
-
-  // With four arguments, there is only one form that the function could be
-  // called in: no events and no variable arguments.
-  if (NumArgs == 4) {
-    // check that the last argument is the right block type.
-    if (!isBlockPointer(Arg3)) {
-      S.Diag(Arg3->getBeginLoc(), diag::err_opencl_builtin_expected_type)
-          << TheCall->getDirectCallee() << "block";
-      return true;
-    }
-    // we have a block type, check the prototype
-    const BlockPointerType *BPT =
-        cast<BlockPointerType>(Arg3->getType().getCanonicalType());
-    if (BPT->getPointeeType()->getAs<FunctionProtoType>()->getNumParams() > 0) {
-      S.Diag(Arg3->getBeginLoc(),
-             diag::err_opencl_enqueue_kernel_blocks_no_args);
-      return true;
-    }
-    return false;
-  }
-  // we can have block + varargs.
-  if (isBlockPointer(Arg3))
-    return (checkOpenCLBlockArgs(S, Arg3) ||
-            checkOpenCLEnqueueVariadicArgs(S, TheCall, Arg3, 4));
-  // last two cases with either exactly 7 args or 7 args and varargs.
-  if (NumArgs >= 7) {
-    // check common block argument.
-    Expr *Arg6 = TheCall->getArg(6);
-    if (!isBlockPointer(Arg6)) {
-      S.Diag(Arg6->getBeginLoc(), diag::err_opencl_builtin_expected_type)
-          << TheCall->getDirectCallee() << "block";
-      return true;
-    }
-    if (checkOpenCLBlockArgs(S, Arg6))
-      return true;
-
-    // Forth argument has to be any integer type.
-    if (!Arg3->getType()->isIntegerType()) {
-      S.Diag(TheCall->getArg(3)->getBeginLoc(),
-             diag::err_opencl_builtin_expected_type)
-          << TheCall->getDirectCallee() << "integer";
-      return true;
-    }
-    // check remaining common arguments.
-    Expr *Arg4 = TheCall->getArg(4);
-    Expr *Arg5 = TheCall->getArg(5);
-
-    // Fifth argument is always passed as a pointer to clk_event_t.
-    if (!Arg4->isNullPointerConstant(S.Context,
-                                     Expr::NPC_ValueDependentIsNotNull) &&
-        !Arg4->getType()->getPointeeOrArrayElementType()->isClkEventT()) {
-      S.Diag(TheCall->getArg(4)->getBeginLoc(),
-             diag::err_opencl_builtin_expected_type)
-          << TheCall->getDirectCallee()
-          << S.Context.getPointerType(S.Context.OCLClkEventTy);
-      return true;
-    }
-
-    // Sixth argument is always passed as a pointer to clk_event_t.
-    if (!Arg5->isNullPointerConstant(S.Context,
-                                     Expr::NPC_ValueDependentIsNotNull) &&
-        !(Arg5->getType()->isPointerType() &&
-          Arg5->getType()->getPointeeType()->isClkEventT())) {
-      S.Diag(TheCall->getArg(5)->getBeginLoc(),
-             diag::err_opencl_builtin_expected_type)
-          << TheCall->getDirectCallee()
-          << S.Context.getPointerType(S.Context.OCLClkEventTy);
-      return true;
-    }
-
-    if (NumArgs == 7)
-      return false;
-
-    return checkOpenCLEnqueueVariadicArgs(S, TheCall, Arg6, 7);
-  }
-
-  // None of the specific case has been detected, give generic error
-  S.Diag(TheCall->getBeginLoc(),
-         diag::err_opencl_enqueue_kernel_incorrect_args);
-  return true;
-}
-
-/// Returns OpenCL access qual.
-static OpenCLAccessAttr *getOpenCLArgAccess(const Decl *D) {
-    return D->getAttr<OpenCLAccessAttr>();
-}
-
-/// Returns true if pipe element type is different from the pointer.
-static bool checkOpenCLPipeArg(Sema &S, CallExpr *Call) {
-  const Expr *Arg0 = Call->getArg(0);
-  // First argument type should always be pipe.
-  if (!Arg0->getType()->isPipeType()) {
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_first_arg)
-        << Call->getDirectCallee() << Arg0->getSourceRange();
-    return true;
-  }
-  OpenCLAccessAttr *AccessQual =
-      getOpenCLArgAccess(cast<DeclRefExpr>(Arg0)->getDecl());
-  // Validates the access qualifier is compatible with the call.
-  // OpenCL v2.0 s6.13.16 - The access qualifiers for pipe should only be
-  // read_only and write_only, and assumed to be read_only if no qualifier is
-  // specified.
-  switch (Call->getDirectCallee()->getBuiltinID()) {
-  case Builtin::BIread_pipe:
-  case Builtin::BIreserve_read_pipe:
-  case Builtin::BIcommit_read_pipe:
-  case Builtin::BIwork_group_reserve_read_pipe:
-  case Builtin::BIsub_group_reserve_read_pipe:
-  case Builtin::BIwork_group_commit_read_pipe:
-  case Builtin::BIsub_group_commit_read_pipe:
-    if (!(!AccessQual || AccessQual->isReadOnly())) {
-      S.Diag(Arg0->getBeginLoc(),
-             diag::err_opencl_builtin_pipe_invalid_access_modifier)
-          << "read_only" << Arg0->getSourceRange();
-      return true;
-    }
-    break;
-  case Builtin::BIwrite_pipe:
-  case Builtin::BIreserve_write_pipe:
-  case Builtin::BIcommit_write_pipe:
-  case Builtin::BIwork_group_reserve_write_pipe:
-  case Builtin::BIsub_group_reserve_write_pipe:
-  case Builtin::BIwork_group_commit_write_pipe:
-  case Builtin::BIsub_group_commit_write_pipe:
-    if (!(AccessQual && AccessQual->isWriteOnly())) {
-      S.Diag(Arg0->getBeginLoc(),
-             diag::err_opencl_builtin_pipe_invalid_access_modifier)
-          << "write_only" << Arg0->getSourceRange();
-      return true;
-    }
-    break;
-  default:
-    break;
-  }
-  return false;
-}
-
-/// Returns true if pipe element type is different from the pointer.
-static bool checkOpenCLPipePacketType(Sema &S, CallExpr *Call, unsigned Idx) {
-  const Expr *Arg0 = Call->getArg(0);
-  const Expr *ArgIdx = Call->getArg(Idx);
-  const PipeType *PipeTy = cast<PipeType>(Arg0->getType());
-  const QualType EltTy = PipeTy->getElementType();
-  const PointerType *ArgTy = ArgIdx->getType()->getAs<PointerType>();
-  // The Idx argument should be a pointer and the type of the pointer and
-  // the type of pipe element should also be the same.
-  if (!ArgTy ||
-      !S.Context.hasSameType(
-          EltTy, ArgTy->getPointeeType()->getCanonicalTypeInternal())) {
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg)
-        << Call->getDirectCallee() << S.Context.getPointerType(EltTy)
-        << ArgIdx->getType() << ArgIdx->getSourceRange();
-    return true;
-  }
-  return false;
-}
-
-// Performs semantic analysis for the read/write_pipe call.
-// \param S Reference to the semantic analyzer.
-// \param Call A pointer to the builtin call.
-// \return True if a semantic error has been found, false otherwise.
-static bool SemaBuiltinRWPipe(Sema &S, CallExpr *Call) {
-  // OpenCL v2.0 s6.13.16.2 - The built-in read/write
-  // functions have two forms.
-  switch (Call->getNumArgs()) {
-  case 2:
-    if (checkOpenCLPipeArg(S, Call))
-      return true;
-    // The call with 2 arguments should be
-    // read/write_pipe(pipe T, T*).
-    // Check packet type T.
-    if (checkOpenCLPipePacketType(S, Call, 1))
-      return true;
-    break;
-
-  case 4: {
-    if (checkOpenCLPipeArg(S, Call))
-      return true;
-    // The call with 4 arguments should be
-    // read/write_pipe(pipe T, reserve_id_t, uint, T*).
-    // Check reserve_id_t.
-    if (!Call->getArg(1)->getType()->isReserveIDT()) {
-      S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg)
-          << Call->getDirectCallee() << S.Context.OCLReserveIDTy
-          << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange();
-      return true;
-    }
-
-    // Check the index.
-    const Expr *Arg2 = Call->getArg(2);
-    if (!Arg2->getType()->isIntegerType() &&
-        !Arg2->getType()->isUnsignedIntegerType()) {
-      S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg)
-          << Call->getDirectCallee() << S.Context.UnsignedIntTy
-          << Arg2->getType() << Arg2->getSourceRange();
-      return true;
-    }
-
-    // Check packet type T.
-    if (checkOpenCLPipePacketType(S, Call, 3))
-      return true;
-  } break;
-  default:
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_arg_num)
-        << Call->getDirectCallee() << Call->getSourceRange();
-    return true;
-  }
-
-  return false;
-}
-
-// Performs a semantic analysis on the {work_group_/sub_group_
-//        /_}reserve_{read/write}_pipe
-// \param S Reference to the semantic analyzer.
-// \param Call The call to the builtin function to be analyzed.
-// \return True if a semantic error was found, false otherwise.
-static bool SemaBuiltinReserveRWPipe(Sema &S, CallExpr *Call) {
-  if (checkArgCount(S, Call, 2))
-    return true;
-
-  if (checkOpenCLPipeArg(S, Call))
-    return true;
-
-  // Check the reserve size.
-  if (!Call->getArg(1)->getType()->isIntegerType() &&
-      !Call->getArg(1)->getType()->isUnsignedIntegerType()) {
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg)
-        << Call->getDirectCallee() << S.Context.UnsignedIntTy
-        << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange();
-    return true;
-  }
-
-  // Since return type of reserve_read/write_pipe built-in function is
-  // reserve_id_t, which is not defined in the builtin def file , we used int
-  // as return type and need to override the return type of these functions.
-  Call->setType(S.Context.OCLReserveIDTy);
-
-  return false;
-}
-
-// Performs a semantic analysis on {work_group_/sub_group_
-//        /_}commit_{read/write}_pipe
-// \param S Reference to the semantic analyzer.
-// \param Call The call to the builtin function to be analyzed.
-// \return True if a semantic error was found, false otherwise.
-static bool SemaBuiltinCommitRWPipe(Sema &S, CallExpr *Call) {
-  if (checkArgCount(S, Call, 2))
-    return true;
-
-  if (checkOpenCLPipeArg(S, Call))
-    return true;
-
-  // Check reserve_id_t.
-  if (!Call->getArg(1)->getType()->isReserveIDT()) {
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_invalid_arg)
-        << Call->getDirectCallee() << S.Context.OCLReserveIDTy
-        << Call->getArg(1)->getType() << Call->getArg(1)->getSourceRange();
-    return true;
-  }
-
-  return false;
-}
-
-// Performs a semantic analysis on the call to built-in Pipe
-//        Query Functions.
-// \param S Reference to the semantic analyzer.
-// \param Call The call to the builtin function to be analyzed.
-// \return True if a semantic error was found, false otherwise.
-static bool SemaBuiltinPipePackets(Sema &S, CallExpr *Call) {
-  if (checkArgCount(S, Call, 1))
-    return true;
-
-  if (!Call->getArg(0)->getType()->isPipeType()) {
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_pipe_first_arg)
-        << Call->getDirectCallee() << Call->getArg(0)->getSourceRange();
-    return true;
-  }
-
-  return false;
-}
-
-// OpenCL v2.0 s6.13.9 - Address space qualifier functions.
-// Performs semantic analysis for the to_global/local/private call.
-// \param S Reference to the semantic analyzer.
-// \param BuiltinID ID of the builtin function.
-// \param Call A pointer to the builtin call.
-// \return True if a semantic error has been found, false otherwise.
-static bool SemaOpenCLBuiltinToAddr(Sema &S, unsigned BuiltinID,
-                                    CallExpr *Call) {
-  if (Call->getNumArgs() != 1) {
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_to_addr_arg_num)
-        << Call->getDirectCallee() << Call->getSourceRange();
-    return true;
-  }
-
-  auto RT = Call->getArg(0)->getType();
-  if (!RT->isPointerType() || RT->getPointeeType()
-      .getAddressSpace() == LangAS::opencl_constant) {
-    S.Diag(Call->getBeginLoc(), diag::err_opencl_builtin_to_addr_invalid_arg)
-        << Call->getArg(0) << Call->getDirectCallee() << Call->getSourceRange();
-    return true;
-  }
-
-  if (RT->getPointeeType().getAddressSpace() != LangAS::opencl_generic) {
-    S.Diag(Call->getArg(0)->getBeginLoc(),
-           diag::warn_opencl_generic_address_space_arg)
-        << Call->getDirectCallee()->getNameInfo().getAsString()
-        << Call->getArg(0)->getSourceRange();
-  }
-
-  RT = RT->getPointeeType();
-  auto Qual = RT.getQualifiers();
-  switch (BuiltinID) {
-  case Builtin::BIto_global:
-    Qual.setAddressSpace(LangAS::opencl_global);
-    break;
-  case Builtin::BIto_local:
-    Qual.setAddressSpace(LangAS::opencl_local);
-    break;
-  case Builtin::BIto_private:
-    Qual.setAddressSpace(LangAS::opencl_private);
-    break;
-  default:
-    llvm_unreachable("Invalid builtin function");
-  }
-  Call->setType(S.Context.getPointerType(S.Context.getQualifiedType(
-      RT.getUnqualifiedType(), Qual)));
-
-  return false;
-}
-
-static ExprResult SemaBuiltinLaunder(Sema &S, CallExpr *TheCall) {
-  if (checkArgCount(S, TheCall, 1))
-    return ExprError();
-
-  // Compute __builtin_launder's parameter type from the argument.
-  // The parameter type is:
-  //  * The type of the argument if it's not an array or function type,
-  //  Otherwise,
-  //  * The decayed argument type.
-  QualType ParamTy = [&]() {
-    QualType ArgTy = TheCall->getArg(0)->getType();
-    if (const ArrayType *Ty = ArgTy->getAsArrayTypeUnsafe())
-      return S.Context.getPointerType(Ty->getElementType());
-    if (ArgTy->isFunctionType()) {
-      return S.Context.getPointerType(ArgTy);
-    }
-    return ArgTy;
-  }();
-
-  TheCall->setType(ParamTy);
-
-  auto DiagSelect = [&]() -> llvm::Optional<unsigned> {
-    if (!ParamTy->isPointerType())
-      return 0;
-    if (ParamTy->isFunctionPointerType())
-      return 1;
-    if (ParamTy->isVoidPointerType())
-      return 2;
-    return llvm::Optional<unsigned>{};
-  }();
-  if (DiagSelect.hasValue()) {
-    S.Diag(TheCall->getBeginLoc(), diag::err_builtin_launder_invalid_arg)
-        << DiagSelect.getValue() << TheCall->getSourceRange();
-    return ExprError();
-  }
-
-  // We either have an incomplete class type, or we have a class template
-  // whose instantiation has not been forced. Example:
-  //
-  //   template <class T> struct Foo { T value; };
-  //   Foo<int> *p = nullptr;
-  //   auto *d = __builtin_launder(p);
-  if (S.RequireCompleteType(TheCall->getBeginLoc(), ParamTy->getPointeeType(),
-                            diag::err_incomplete_type))
-    return ExprError();
-
-  assert(ParamTy->getPointeeType()->isObjectType() &&
-         "Unhandled non-object pointer case");
-
-  InitializedEntity Entity =
-      InitializedEntity::InitializeParameter(S.Context, ParamTy, false);
-  ExprResult Arg =
-      S.PerformCopyInitialization(Entity, SourceLocation(), TheCall->getArg(0));
-  if (Arg.isInvalid())
-    return ExprError();
-  TheCall->setArg(0, Arg.get());
-
-  return TheCall;
-}
-
-// Emit an error and return true if the current architecture is not in the list
-// of supported architectures.
-static bool
-CheckBuiltinTargetSupport(Sema &S, unsigned BuiltinID, CallExpr *TheCall,
-                          ArrayRef<llvm::Triple::ArchType> SupportedArchs) {
-  llvm::Triple::ArchType CurArch =
-      S.getASTContext().getTargetInfo().getTriple().getArch();
-  if (llvm::is_contained(SupportedArchs, CurArch))
-    return false;
-  S.Diag(TheCall->getBeginLoc(), diag::err_builtin_target_unsupported)
-      << TheCall->getSourceRange();
-  return true;
-}
-
-ExprResult
-Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl, unsigned BuiltinID,
-                               CallExpr *TheCall) {
-  ExprResult TheCallResult(TheCall);
-
-  // Find out if any arguments are required to be integer constant expressions.
-  unsigned ICEArguments = 0;
-  ASTContext::GetBuiltinTypeError Error;
-  Context.GetBuiltinType(BuiltinID, Error, &ICEArguments);
-  if (Error != ASTContext::GE_None)
-    ICEArguments = 0;  // Don't diagnose previously diagnosed errors.
-
-  // If any arguments are required to be ICE's, check and diagnose.
-  for (unsigned ArgNo = 0; ICEArguments != 0; ++ArgNo) {
-    // Skip arguments not required to be ICE's.
-    if ((ICEArguments & (1 << ArgNo)) == 0) continue;
-
-    llvm::APSInt Result;
-    if (SemaBuiltinConstantArg(TheCall, ArgNo, Result))
-      return true;
-    ICEArguments &= ~(1 << ArgNo);
-  }
-
-  switch (BuiltinID) {
-  case Builtin::BI__builtin___CFStringMakeConstantString:
-    assert(TheCall->getNumArgs() == 1 &&
-           "Wrong # arguments to builtin CFStringMakeConstantString");
-    if (CheckObjCString(TheCall->getArg(0)))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_ms_va_start:
-  case Builtin::BI__builtin_stdarg_start:
-  case Builtin::BI__builtin_va_start:
-    if (SemaBuiltinVAStart(BuiltinID, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__va_start: {
-    switch (Context.getTargetInfo().getTriple().getArch()) {
-    case llvm::Triple::aarch64:
-    case llvm::Triple::arm:
-    case llvm::Triple::thumb:
-      if (SemaBuiltinVAStartARMMicrosoft(TheCall))
-        return ExprError();
-      break;
-    default:
-      if (SemaBuiltinVAStart(BuiltinID, TheCall))
-        return ExprError();
-      break;
-    }
-    break;
-  }
-
-  // The acquire, release, and no fence variants are ARM and AArch64 only.
-  case Builtin::BI_interlockedbittestandset_acq:
-  case Builtin::BI_interlockedbittestandset_rel:
-  case Builtin::BI_interlockedbittestandset_nf:
-  case Builtin::BI_interlockedbittestandreset_acq:
-  case Builtin::BI_interlockedbittestandreset_rel:
-  case Builtin::BI_interlockedbittestandreset_nf:
-    if (CheckBuiltinTargetSupport(
-            *this, BuiltinID, TheCall,
-            {llvm::Triple::arm, llvm::Triple::thumb, llvm::Triple::aarch64}))
-      return ExprError();
-    break;
-
-  // The 64-bit bittest variants are x64, ARM, and AArch64 only.
-  case Builtin::BI_bittest64:
-  case Builtin::BI_bittestandcomplement64:
-  case Builtin::BI_bittestandreset64:
-  case Builtin::BI_bittestandset64:
-  case Builtin::BI_interlockedbittestandreset64:
-  case Builtin::BI_interlockedbittestandset64:
-    if (CheckBuiltinTargetSupport(*this, BuiltinID, TheCall,
-                                  {llvm::Triple::x86_64, llvm::Triple::arm,
-                                   llvm::Triple::thumb, llvm::Triple::aarch64}))
-      return ExprError();
-    break;
-
-  case Builtin::BI__builtin_isgreater:
-  case Builtin::BI__builtin_isgreaterequal:
-  case Builtin::BI__builtin_isless:
-  case Builtin::BI__builtin_islessequal:
-  case Builtin::BI__builtin_islessgreater:
-  case Builtin::BI__builtin_isunordered:
-    if (SemaBuiltinUnorderedCompare(TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_fpclassify:
-    if (SemaBuiltinFPClassification(TheCall, 6))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_isfinite:
-  case Builtin::BI__builtin_isinf:
-  case Builtin::BI__builtin_isinf_sign:
-  case Builtin::BI__builtin_isnan:
-  case Builtin::BI__builtin_isnormal:
-  case Builtin::BI__builtin_signbit:
-  case Builtin::BI__builtin_signbitf:
-  case Builtin::BI__builtin_signbitl:
-    if (SemaBuiltinFPClassification(TheCall, 1))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_shufflevector:
-    return SemaBuiltinShuffleVector(TheCall);
-    // TheCall will be freed by the smart pointer here, but that's fine, since
-    // SemaBuiltinShuffleVector guts it, but then doesn't release it.
-  case Builtin::BI__builtin_prefetch:
-    if (SemaBuiltinPrefetch(TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_alloca_with_align:
-    if (SemaBuiltinAllocaWithAlign(TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__assume:
-  case Builtin::BI__builtin_assume:
-    if (SemaBuiltinAssume(TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_assume_aligned:
-    if (SemaBuiltinAssumeAligned(TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_dynamic_object_size:
-  case Builtin::BI__builtin_object_size:
-    if (SemaBuiltinConstantArgRange(TheCall, 1, 0, 3))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_longjmp:
-    if (SemaBuiltinLongjmp(TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_setjmp:
-    if (SemaBuiltinSetjmp(TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI_setjmp:
-  case Builtin::BI_setjmpex:
-    if (checkArgCount(*this, TheCall, 1))
-      return true;
-    break;
-  case Builtin::BI__builtin_classify_type:
-    if (checkArgCount(*this, TheCall, 1)) return true;
-    TheCall->setType(Context.IntTy);
-    break;
-  case Builtin::BI__builtin_constant_p: {
-    if (checkArgCount(*this, TheCall, 1)) return true;
-    ExprResult Arg = DefaultFunctionArrayLvalueConversion(TheCall->getArg(0));
-    if (Arg.isInvalid()) return true;
-    TheCall->setArg(0, Arg.get());
-    TheCall->setType(Context.IntTy);
-    break;
-  }
-  case Builtin::BI__builtin_launder:
-    return SemaBuiltinLaunder(*this, TheCall);
-  case Builtin::BI__sync_fetch_and_add:
-  case Builtin::BI__sync_fetch_and_add_1:
-  case Builtin::BI__sync_fetch_and_add_2:
-  case Builtin::BI__sync_fetch_and_add_4:
-  case Builtin::BI__sync_fetch_and_add_8:
-  case Builtin::BI__sync_fetch_and_add_16:
-  case Builtin::BI__sync_fetch_and_sub:
-  case Builtin::BI__sync_fetch_and_sub_1:
-  case Builtin::BI__sync_fetch_and_sub_2:
-  case Builtin::BI__sync_fetch_and_sub_4:
-  case Builtin::BI__sync_fetch_and_sub_8:
-  case Builtin::BI__sync_fetch_and_sub_16:
-  case Builtin::BI__sync_fetch_and_or:
-  case Builtin::BI__sync_fetch_and_or_1:
-  case Builtin::BI__sync_fetch_and_or_2:
-  case Builtin::BI__sync_fetch_and_or_4:
-  case Builtin::BI__sync_fetch_and_or_8:
-  case Builtin::BI__sync_fetch_and_or_16:
-  case Builtin::BI__sync_fetch_and_and:
-  case Builtin::BI__sync_fetch_and_and_1:
-  case Builtin::BI__sync_fetch_and_and_2:
-  case Builtin::BI__sync_fetch_and_and_4:
-  case Builtin::BI__sync_fetch_and_and_8:
-  case Builtin::BI__sync_fetch_and_and_16:
-  case Builtin::BI__sync_fetch_and_xor:
-  case Builtin::BI__sync_fetch_and_xor_1:
-  case Builtin::BI__sync_fetch_and_xor_2:
-  case Builtin::BI__sync_fetch_and_xor_4:
-  case Builtin::BI__sync_fetch_and_xor_8:
-  case Builtin::BI__sync_fetch_and_xor_16:
-  case Builtin::BI__sync_fetch_and_nand:
-  case Builtin::BI__sync_fetch_and_nand_1:
-  case Builtin::BI__sync_fetch_and_nand_2:
-  case Builtin::BI__sync_fetch_and_nand_4:
-  case Builtin::BI__sync_fetch_and_nand_8:
-  case Builtin::BI__sync_fetch_and_nand_16:
-  case Builtin::BI__sync_add_and_fetch:
-  case Builtin::BI__sync_add_and_fetch_1:
-  case Builtin::BI__sync_add_and_fetch_2:
-  case Builtin::BI__sync_add_and_fetch_4:
-  case Builtin::BI__sync_add_and_fetch_8:
-  case Builtin::BI__sync_add_and_fetch_16:
-  case Builtin::BI__sync_sub_and_fetch:
-  case Builtin::BI__sync_sub_and_fetch_1:
-  case Builtin::BI__sync_sub_and_fetch_2:
-  case Builtin::BI__sync_sub_and_fetch_4:
-  case Builtin::BI__sync_sub_and_fetch_8:
-  case Builtin::BI__sync_sub_and_fetch_16:
-  case Builtin::BI__sync_and_and_fetch:
-  case Builtin::BI__sync_and_and_fetch_1:
-  case Builtin::BI__sync_and_and_fetch_2:
-  case Builtin::BI__sync_and_and_fetch_4:
-  case Builtin::BI__sync_and_and_fetch_8:
-  case Builtin::BI__sync_and_and_fetch_16:
-  case Builtin::BI__sync_or_and_fetch:
-  case Builtin::BI__sync_or_and_fetch_1:
-  case Builtin::BI__sync_or_and_fetch_2:
-  case Builtin::BI__sync_or_and_fetch_4:
-  case Builtin::BI__sync_or_and_fetch_8:
-  case Builtin::BI__sync_or_and_fetch_16:
-  case Builtin::BI__sync_xor_and_fetch:
-  case Builtin::BI__sync_xor_and_fetch_1:
-  case Builtin::BI__sync_xor_and_fetch_2:
-  case Builtin::BI__sync_xor_and_fetch_4:
-  case Builtin::BI__sync_xor_and_fetch_8:
-  case Builtin::BI__sync_xor_and_fetch_16:
-  case Builtin::BI__sync_nand_and_fetch:
-  case Builtin::BI__sync_nand_and_fetch_1:
-  case Builtin::BI__sync_nand_and_fetch_2:
-  case Builtin::BI__sync_nand_and_fetch_4:
-  case Builtin::BI__sync_nand_and_fetch_8:
-  case Builtin::BI__sync_nand_and_fetch_16:
-  case Builtin::BI__sync_val_compare_and_swap:
-  case Builtin::BI__sync_val_compare_and_swap_1:
-  case Builtin::BI__sync_val_compare_and_swap_2:
-  case Builtin::BI__sync_val_compare_and_swap_4:
-  case Builtin::BI__sync_val_compare_and_swap_8:
-  case Builtin::BI__sync_val_compare_and_swap_16:
-  case Builtin::BI__sync_bool_compare_and_swap:
-  case Builtin::BI__sync_bool_compare_and_swap_1:
-  case Builtin::BI__sync_bool_compare_and_swap_2:
-  case Builtin::BI__sync_bool_compare_and_swap_4:
-  case Builtin::BI__sync_bool_compare_and_swap_8:
-  case Builtin::BI__sync_bool_compare_and_swap_16:
-  case Builtin::BI__sync_lock_test_and_set:
-  case Builtin::BI__sync_lock_test_and_set_1:
-  case Builtin::BI__sync_lock_test_and_set_2:
-  case Builtin::BI__sync_lock_test_and_set_4:
-  case Builtin::BI__sync_lock_test_and_set_8:
-  case Builtin::BI__sync_lock_test_and_set_16:
-  case Builtin::BI__sync_lock_release:
-  case Builtin::BI__sync_lock_release_1:
-  case Builtin::BI__sync_lock_release_2:
-  case Builtin::BI__sync_lock_release_4:
-  case Builtin::BI__sync_lock_release_8:
-  case Builtin::BI__sync_lock_release_16:
-  case Builtin::BI__sync_swap:
-  case Builtin::BI__sync_swap_1:
-  case Builtin::BI__sync_swap_2:
-  case Builtin::BI__sync_swap_4:
-  case Builtin::BI__sync_swap_8:
-  case Builtin::BI__sync_swap_16:
-    return SemaBuiltinAtomicOverloaded(TheCallResult);
-  case Builtin::BI__sync_synchronize:
-    Diag(TheCall->getBeginLoc(), diag::warn_atomic_implicit_seq_cst)
-        << TheCall->getCallee()->getSourceRange();
-    break;
-  case Builtin::BI__builtin_nontemporal_load:
-  case Builtin::BI__builtin_nontemporal_store:
-    return SemaBuiltinNontemporalOverloaded(TheCallResult);
-#define BUILTIN(ID, TYPE, ATTRS)
-#define ATOMIC_BUILTIN(ID, TYPE, ATTRS) \
-  case Builtin::BI##ID: \
-    return SemaAtomicOpsOverloaded(TheCallResult, AtomicExpr::AO##ID);
-#include "clang/Basic/Builtins.def"
-  case Builtin::BI__annotation:
-    if (SemaBuiltinMSVCAnnotation(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_annotation:
-    if (SemaBuiltinAnnotation(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_addressof:
-    if (SemaBuiltinAddressof(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_add_overflow:
-  case Builtin::BI__builtin_sub_overflow:
-  case Builtin::BI__builtin_mul_overflow:
-    if (SemaBuiltinOverflow(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_operator_new:
-  case Builtin::BI__builtin_operator_delete: {
-    bool IsDelete = BuiltinID == Builtin::BI__builtin_operator_delete;
-    ExprResult Res =
-        SemaBuiltinOperatorNewDeleteOverloaded(TheCallResult, IsDelete);
-    if (Res.isInvalid())
-      CorrectDelayedTyposInExpr(TheCallResult.get());
-    return Res;
-  }
-  case Builtin::BI__builtin_dump_struct: {
-    // We first want to ensure we are called with 2 arguments
-    if (checkArgCount(*this, TheCall, 2))
-      return ExprError();
-    // Ensure that the first argument is of type 'struct XX *'
-    const Expr *PtrArg = TheCall->getArg(0)->IgnoreParenImpCasts();
-    const QualType PtrArgType = PtrArg->getType();
-    if (!PtrArgType->isPointerType() ||
-        !PtrArgType->getPointeeType()->isRecordType()) {
-      Diag(PtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible)
-          << PtrArgType << "structure pointer" << 1 << 0 << 3 << 1 << PtrArgType
-          << "structure pointer";
-      return ExprError();
-    }
-
-    // Ensure that the second argument is of type 'FunctionType'
-    const Expr *FnPtrArg = TheCall->getArg(1)->IgnoreImpCasts();
-    const QualType FnPtrArgType = FnPtrArg->getType();
-    if (!FnPtrArgType->isPointerType()) {
-      Diag(FnPtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible)
-          << FnPtrArgType << "'int (*)(const char *, ...)'" << 1 << 0 << 3 << 2
-          << FnPtrArgType << "'int (*)(const char *, ...)'";
-      return ExprError();
-    }
-
-    const auto *FuncType =
-        FnPtrArgType->getPointeeType()->getAs<FunctionType>();
-
-    if (!FuncType) {
-      Diag(FnPtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible)
-          << FnPtrArgType << "'int (*)(const char *, ...)'" << 1 << 0 << 3 << 2
-          << FnPtrArgType << "'int (*)(const char *, ...)'";
-      return ExprError();
-    }
-
-    if (const auto *FT = dyn_cast<FunctionProtoType>(FuncType)) {
-      if (!FT->getNumParams()) {
-        Diag(FnPtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible)
-            << FnPtrArgType << "'int (*)(const char *, ...)'" << 1 << 0 << 3
-            << 2 << FnPtrArgType << "'int (*)(const char *, ...)'";
-        return ExprError();
-      }
-      QualType PT = FT->getParamType(0);
-      if (!FT->isVariadic() || FT->getReturnType() != Context.IntTy ||
-          !PT->isPointerType() || !PT->getPointeeType()->isCharType() ||
-          !PT->getPointeeType().isConstQualified()) {
-        Diag(FnPtrArg->getBeginLoc(), diag::err_typecheck_convert_incompatible)
-            << FnPtrArgType << "'int (*)(const char *, ...)'" << 1 << 0 << 3
-            << 2 << FnPtrArgType << "'int (*)(const char *, ...)'";
-        return ExprError();
-      }
-    }
-
-    TheCall->setType(Context.IntTy);
-    break;
-  }
-  case Builtin::BI__builtin_preserve_access_index:
-    if (SemaBuiltinPreserveAI(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_call_with_static_chain:
-    if (SemaBuiltinCallWithStaticChain(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__exception_code:
-  case Builtin::BI_exception_code:
-    if (SemaBuiltinSEHScopeCheck(*this, TheCall, Scope::SEHExceptScope,
-                                 diag::err_seh___except_block))
-      return ExprError();
-    break;
-  case Builtin::BI__exception_info:
-  case Builtin::BI_exception_info:
-    if (SemaBuiltinSEHScopeCheck(*this, TheCall, Scope::SEHFilterScope,
-                                 diag::err_seh___except_filter))
-      return ExprError();
-    break;
-  case Builtin::BI__GetExceptionInfo:
-    if (checkArgCount(*this, TheCall, 1))
-      return ExprError();
-
-    if (CheckCXXThrowOperand(
-            TheCall->getBeginLoc(),
-            Context.getExceptionObjectType(FDecl->getParamDecl(0)->getType()),
-            TheCall))
-      return ExprError();
-
-    TheCall->setType(Context.VoidPtrTy);
-    break;
-  // OpenCL v2.0, s6.13.16 - Pipe functions
-  case Builtin::BIread_pipe:
-  case Builtin::BIwrite_pipe:
-    // Since those two functions are declared with var args, we need a semantic
-    // check for the argument.
-    if (SemaBuiltinRWPipe(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BIreserve_read_pipe:
-  case Builtin::BIreserve_write_pipe:
-  case Builtin::BIwork_group_reserve_read_pipe:
-  case Builtin::BIwork_group_reserve_write_pipe:
-    if (SemaBuiltinReserveRWPipe(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BIsub_group_reserve_read_pipe:
-  case Builtin::BIsub_group_reserve_write_pipe:
-    if (checkOpenCLSubgroupExt(*this, TheCall) ||
-        SemaBuiltinReserveRWPipe(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BIcommit_read_pipe:
-  case Builtin::BIcommit_write_pipe:
-  case Builtin::BIwork_group_commit_read_pipe:
-  case Builtin::BIwork_group_commit_write_pipe:
-    if (SemaBuiltinCommitRWPipe(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BIsub_group_commit_read_pipe:
-  case Builtin::BIsub_group_commit_write_pipe:
-    if (checkOpenCLSubgroupExt(*this, TheCall) ||
-        SemaBuiltinCommitRWPipe(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BIget_pipe_num_packets:
-  case Builtin::BIget_pipe_max_packets:
-    if (SemaBuiltinPipePackets(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BIto_global:
-  case Builtin::BIto_local:
-  case Builtin::BIto_private:
-    if (SemaOpenCLBuiltinToAddr(*this, BuiltinID, TheCall))
-      return ExprError();
-    break;
-  // OpenCL v2.0, s6.13.17 - Enqueue kernel functions.
-  case Builtin::BIenqueue_kernel:
-    if (SemaOpenCLBuiltinEnqueueKernel(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BIget_kernel_work_group_size:
-  case Builtin::BIget_kernel_preferred_work_group_size_multiple:
-    if (SemaOpenCLBuiltinKernelWorkGroupSize(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BIget_kernel_max_sub_group_size_for_ndrange:
-  case Builtin::BIget_kernel_sub_group_count_for_ndrange:
-    if (SemaOpenCLBuiltinNDRangeAndBlock(*this, TheCall))
-      return ExprError();
-    break;
-  case Builtin::BI__builtin_os_log_format:
-  case Builtin::BI__builtin_os_log_format_buffer_size:
-    if (SemaBuiltinOSLogFormat(TheCall))
-      return ExprError();
-    break;
-  }
-
-  // Since the target specific builtins for each arch overlap, only check those
-  // of the arch we are compiling for.
-  if (Context.BuiltinInfo.isTSBuiltin(BuiltinID)) {
-    switch (Context.getTargetInfo().getTriple().getArch()) {
-      case llvm::Triple::arm:
-      case llvm::Triple::armeb:
-      case llvm::Triple::thumb:
-      case llvm::Triple::thumbeb:
-        if (CheckARMBuiltinFunctionCall(BuiltinID, TheCall))
-          return ExprError();
-        break;
-      case llvm::Triple::aarch64:
-      case llvm::Triple::aarch64_be:
-        if (CheckAArch64BuiltinFunctionCall(BuiltinID, TheCall))
-          return ExprError();
-        break;
-      case llvm::Triple::hexagon:
-        if (CheckHexagonBuiltinFunctionCall(BuiltinID, TheCall))
-          return ExprError();
-        break;
-      case llvm::Triple::mips:
-      case llvm::Triple::mipsel:
-      case llvm::Triple::mips64:
-      case llvm::Triple::mips64el:
-        if (CheckMipsBuiltinFunctionCall(BuiltinID, TheCall))
-          return ExprError();
-        break;
-      case llvm::Triple::systemz:
-        if (CheckSystemZBuiltinFunctionCall(BuiltinID, TheCall))
-          return ExprError();
-        break;
-      case llvm::Triple::x86:
-      case llvm::Triple::x86_64:
-        if (CheckX86BuiltinFunctionCall(BuiltinID, TheCall))
-          return ExprError();
-        break;
-      case llvm::Triple::ppc:
-      case llvm::Triple::ppc64:
-      case llvm::Triple::ppc64le:
-        if (CheckPPCBuiltinFunctionCall(BuiltinID, TheCall))
-          return ExprError();
-        break;
-      default:
-        break;
-    }
-  }
-
-  return TheCallResult;
-}
-
-// Get the valid immediate range for the specified NEON type code.
-static unsigned RFT(unsigned t, bool shift = false, bool ForceQuad = false) {
-  NeonTypeFlags Type(t);
-  int IsQuad = ForceQuad ? true : Type.isQuad();
-  switch (Type.getEltType()) {
-  case NeonTypeFlags::Int8:
-  case NeonTypeFlags::Poly8:
-    return shift ? 7 : (8 << IsQuad) - 1;
-  case NeonTypeFlags::Int16:
-  case NeonTypeFlags::Poly16:
-    return shift ? 15 : (4 << IsQuad) - 1;
-  case NeonTypeFlags::Int32:
-    return shift ? 31 : (2 << IsQuad) - 1;
-  case NeonTypeFlags::Int64:
-  case NeonTypeFlags::Poly64:
-    return shift ? 63 : (1 << IsQuad) - 1;
-  case NeonTypeFlags::Poly128:
-    return shift ? 127 : (1 << IsQuad) - 1;
-  case NeonTypeFlags::Float16:
-    assert(!shift && "cannot shift float types!");
-    return (4 << IsQuad) - 1;
-  case NeonTypeFlags::Float32:
-    assert(!shift && "cannot shift float types!");
-    return (2 << IsQuad) - 1;
-  case NeonTypeFlags::Float64:
-    assert(!shift && "cannot shift float types!");
-    return (1 << IsQuad) - 1;
-  }
-  llvm_unreachable("Invalid NeonTypeFlag!");
-}
-
-/// getNeonEltType - Return the QualType corresponding to the elements of
-/// the vector type specified by the NeonTypeFlags.  This is used to check
-/// the pointer arguments for Neon load/store intrinsics.
-static QualType getNeonEltType(NeonTypeFlags Flags, ASTContext &Context,
-                               bool IsPolyUnsigned, bool IsInt64Long) {
-  switch (Flags.getEltType()) {
-  case NeonTypeFlags::Int8:
-    return Flags.isUnsigned() ? Context.UnsignedCharTy : Context.SignedCharTy;
-  case NeonTypeFlags::Int16:
-    return Flags.isUnsigned() ? Context.UnsignedShortTy : Context.ShortTy;
-  case NeonTypeFlags::Int32:
-    return Flags.isUnsigned() ? Context.UnsignedIntTy : Context.IntTy;
-  case NeonTypeFlags::Int64:
-    if (IsInt64Long)
-      return Flags.isUnsigned() ? Context.UnsignedLongTy : Context.LongTy;
-    else
-      return Flags.isUnsigned() ? Context.UnsignedLongLongTy
-                                : Context.LongLongTy;
-  case NeonTypeFlags::Poly8:
-    return IsPolyUnsigned ? Context.UnsignedCharTy : Context.SignedCharTy;
-  case NeonTypeFlags::Poly16:
-    return IsPolyUnsigned ? Context.UnsignedShortTy : Context.ShortTy;
-  case NeonTypeFlags::Poly64:
-    if (IsInt64Long)
-      return Context.UnsignedLongTy;
-    else
-      return Context.UnsignedLongLongTy;
-  case NeonTypeFlags::Poly128:
-    break;
-  case NeonTypeFlags::Float16:
-    return Context.HalfTy;
-  case NeonTypeFlags::Float32:
-    return Context.FloatTy;
-  case NeonTypeFlags::Float64:
-    return Context.DoubleTy;
-  }
-  llvm_unreachable("Invalid NeonTypeFlag!");
-}
-
-bool Sema::CheckNeonBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
-  llvm::APSInt Result;
-  uint64_t mask = 0;
-  unsigned TV = 0;
-  int PtrArgNum = -1;
-  bool HasConstPtr = false;
-  switch (BuiltinID) {
-#define GET_NEON_OVERLOAD_CHECK
-#include "clang/Basic/arm_neon.inc"
-#include "clang/Basic/arm_fp16.inc"
-#undef GET_NEON_OVERLOAD_CHECK
-  }
-
-  // For NEON intrinsics which are overloaded on vector element type, validate
-  // the immediate which specifies which variant to emit.
-  unsigned ImmArg = TheCall->getNumArgs()-1;
-  if (mask) {
-    if (SemaBuiltinConstantArg(TheCall, ImmArg, Result))
-      return true;
-
-    TV = Result.getLimitedValue(64);
-    if ((TV > 63) || (mask & (1ULL << TV)) == 0)
-      return Diag(TheCall->getBeginLoc(), diag::err_invalid_neon_type_code)
-             << TheCall->getArg(ImmArg)->getSourceRange();
-  }
-
-  if (PtrArgNum >= 0) {
-    // Check that pointer arguments have the specified type.
-    Expr *Arg = TheCall->getArg(PtrArgNum);
-    if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Arg))
-      Arg = ICE->getSubExpr();
-    ExprResult RHS = DefaultFunctionArrayLvalueConversion(Arg);
-    QualType RHSTy = RHS.get()->getType();
-
-    llvm::Triple::ArchType Arch = Context.getTargetInfo().getTriple().getArch();
-    bool IsPolyUnsigned = Arch == llvm::Triple::aarch64 ||
-                          Arch == llvm::Triple::aarch64_be;
-    bool IsInt64Long =
-        Context.getTargetInfo().getInt64Type() == TargetInfo::SignedLong;
-    QualType EltTy =
-        getNeonEltType(NeonTypeFlags(TV), Context, IsPolyUnsigned, IsInt64Long);
-    if (HasConstPtr)
-      EltTy = EltTy.withConst();
-    QualType LHSTy = Context.getPointerType(EltTy);
-    AssignConvertType ConvTy;
-    ConvTy = CheckSingleAssignmentConstraints(LHSTy, RHS);
-    if (RHS.isInvalid())
-      return true;
-    if (DiagnoseAssignmentResult(ConvTy, Arg->getBeginLoc(), LHSTy, RHSTy,
-                                 RHS.get(), AA_Assigning))
-      return true;
-  }
-
-  // For NEON intrinsics which take an immediate value as part of the
-  // instruction, range check them here.
-  unsigned i = 0, l = 0, u = 0;
-  switch (BuiltinID) {
-  default:
-    return false;
-  #define GET_NEON_IMMEDIATE_CHECK
-  #include "clang/Basic/arm_neon.inc"
-  #include "clang/Basic/arm_fp16.inc"
-  #undef GET_NEON_IMMEDIATE_CHECK
-  }
-
-  return SemaBuiltinConstantArgRange(TheCall, i, l, u + l);
-}
-
-bool Sema::CheckARMBuiltinExclusiveCall(unsigned BuiltinID, CallExpr *TheCall,
-                                        unsigned MaxWidth) {
-  assert((BuiltinID == ARM::BI__builtin_arm_ldrex ||
-          BuiltinID == ARM::BI__builtin_arm_ldaex ||
-          BuiltinID == ARM::BI__builtin_arm_strex ||
-          BuiltinID == ARM::BI__builtin_arm_stlex ||
-          BuiltinID == AArch64::BI__builtin_arm_ldrex ||
-          BuiltinID == AArch64::BI__builtin_arm_ldaex ||
-          BuiltinID == AArch64::BI__builtin_arm_strex ||
-          BuiltinID == AArch64::BI__builtin_arm_stlex) &&
-         "unexpected ARM builtin");
-  bool IsLdrex = BuiltinID == ARM::BI__builtin_arm_ldrex ||
-                 BuiltinID == ARM::BI__builtin_arm_ldaex ||
-                 BuiltinID == AArch64::BI__builtin_arm_ldrex ||
-                 BuiltinID == AArch64::BI__builtin_arm_ldaex;
-
-  DeclRefExpr *DRE =cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts());
-
-  // Ensure that we have the proper number of arguments.
-  if (checkArgCount(*this, TheCall, IsLdrex ? 1 : 2))
-    return true;
-
-  // Inspect the pointer argument of the atomic builtin.  This should always be
-  // a pointer type, whose element is an integral scalar or pointer type.
-  // Because it is a pointer type, we don't have to worry about any implicit
-  // casts here.
-  Expr *PointerArg = TheCall->getArg(IsLdrex ? 0 : 1);
-  ExprResult PointerArgRes = DefaultFunctionArrayLvalueConversion(PointerArg);
-  if (PointerArgRes.isInvalid())
-    return true;
-  PointerArg = PointerArgRes.get();
-
-  const PointerType *pointerType = PointerArg->getType()->getAs<PointerType>();
-  if (!pointerType) {
-    Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer)
-        << PointerArg->getType() << PointerArg->getSourceRange();
-    return true;
-  }
-
-  // ldrex takes a "const volatile T*" and strex takes a "volatile T*". Our next
-  // task is to insert the appropriate casts into the AST. First work out just
-  // what the appropriate type is.
-  QualType ValType = pointerType->getPointeeType();
-  QualType AddrType = ValType.getUnqualifiedType().withVolatile();
-  if (IsLdrex)
-    AddrType.addConst();
-
-  // Issue a warning if the cast is dodgy.
-  CastKind CastNeeded = CK_NoOp;
-  if (!AddrType.isAtLeastAsQualifiedAs(ValType)) {
-    CastNeeded = CK_BitCast;
-    Diag(DRE->getBeginLoc(), diag::ext_typecheck_convert_discards_qualifiers)
-        << PointerArg->getType() << Context.getPointerType(AddrType)
-        << AA_Passing << PointerArg->getSourceRange();
-  }
-
-  // Finally, do the cast and replace the argument with the corrected version.
-  AddrType = Context.getPointerType(AddrType);
-  PointerArgRes = ImpCastExprToType(PointerArg, AddrType, CastNeeded);
-  if (PointerArgRes.isInvalid())
-    return true;
-  PointerArg = PointerArgRes.get();
-
-  TheCall->setArg(IsLdrex ? 0 : 1, PointerArg);
-
-  // In general, we allow ints, floats and pointers to be loaded and stored.
-  if (!ValType->isIntegerType() && !ValType->isAnyPointerType() &&
-      !ValType->isBlockPointerType() && !ValType->isFloatingType()) {
-    Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer_intfltptr)
-        << PointerArg->getType() << PointerArg->getSourceRange();
-    return true;
-  }
-
-  // But ARM doesn't have instructions to deal with 128-bit versions.
-  if (Context.getTypeSize(ValType) > MaxWidth) {
-    assert(MaxWidth == 64 && "Diagnostic unexpectedly inaccurate");
-    Diag(DRE->getBeginLoc(), diag::err_atomic_exclusive_builtin_pointer_size)
-        << PointerArg->getType() << PointerArg->getSourceRange();
-    return true;
-  }
-
-  switch (ValType.getObjCLifetime()) {
-  case Qualifiers::OCL_None:
-  case Qualifiers::OCL_ExplicitNone:
-    // okay
-    break;
-
-  case Qualifiers::OCL_Weak:
-  case Qualifiers::OCL_Strong:
-  case Qualifiers::OCL_Autoreleasing:
-    Diag(DRE->getBeginLoc(), diag::err_arc_atomic_ownership)
-        << ValType << PointerArg->getSourceRange();
-    return true;
-  }
-
-  if (IsLdrex) {
-    TheCall->setType(ValType);
-    return false;
-  }
-
-  // Initialize the argument to be stored.
-  ExprResult ValArg = TheCall->getArg(0);
-  InitializedEntity Entity = InitializedEntity::InitializeParameter(
-      Context, ValType, /*consume*/ false);
-  ValArg = PerformCopyInitialization(Entity, SourceLocation(), ValArg);
-  if (ValArg.isInvalid())
-    return true;
-  TheCall->setArg(0, ValArg.get());
-
-  // __builtin_arm_strex always returns an int. It's marked as such in the .def,
-  // but the custom checker bypasses all default analysis.
-  TheCall->setType(Context.IntTy);
-  return false;
-}
-
-bool Sema::CheckARMBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
-  if (BuiltinID == ARM::BI__builtin_arm_ldrex ||
-      BuiltinID == ARM::BI__builtin_arm_ldaex ||
-      BuiltinID == ARM::BI__builtin_arm_strex ||
-      BuiltinID == ARM::BI__builtin_arm_stlex) {
-    return CheckARMBuiltinExclusiveCall(BuiltinID, TheCall, 64);
-  }
-
-  if (BuiltinID == ARM::BI__builtin_arm_prefetch) {
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 1) ||
-      SemaBuiltinConstantArgRange(TheCall, 2, 0, 1);
-  }
-
-  if (BuiltinID == ARM::BI__builtin_arm_rsr64 ||
-      BuiltinID == ARM::BI__builtin_arm_wsr64)
-    return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 3, false);
-
-  if (BuiltinID == ARM::BI__builtin_arm_rsr ||
-      BuiltinID == ARM::BI__builtin_arm_rsrp ||
-      BuiltinID == ARM::BI__builtin_arm_wsr ||
-      BuiltinID == ARM::BI__builtin_arm_wsrp)
-    return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 5, true);
-
-  if (CheckNeonBuiltinFunctionCall(BuiltinID, TheCall))
-    return true;
-
-  // For intrinsics which take an immediate value as part of the instruction,
-  // range check them here.
-  // FIXME: VFP Intrinsics should error if VFP not present.
-  switch (BuiltinID) {
-  default: return false;
-  case ARM::BI__builtin_arm_ssat:
-    return SemaBuiltinConstantArgRange(TheCall, 1, 1, 32);
-  case ARM::BI__builtin_arm_usat:
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 31);
-  case ARM::BI__builtin_arm_ssat16:
-    return SemaBuiltinConstantArgRange(TheCall, 1, 1, 16);
-  case ARM::BI__builtin_arm_usat16:
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 15);
-  case ARM::BI__builtin_arm_vcvtr_f:
-  case ARM::BI__builtin_arm_vcvtr_d:
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 1);
-  case ARM::BI__builtin_arm_dmb:
-  case ARM::BI__builtin_arm_dsb:
-  case ARM::BI__builtin_arm_isb:
-  case ARM::BI__builtin_arm_dbg:
-    return SemaBuiltinConstantArgRange(TheCall, 0, 0, 15);
-  }
-}
-
-bool Sema::CheckAArch64BuiltinFunctionCall(unsigned BuiltinID,
-                                         CallExpr *TheCall) {
-  if (BuiltinID == AArch64::BI__builtin_arm_ldrex ||
-      BuiltinID == AArch64::BI__builtin_arm_ldaex ||
-      BuiltinID == AArch64::BI__builtin_arm_strex ||
-      BuiltinID == AArch64::BI__builtin_arm_stlex) {
-    return CheckARMBuiltinExclusiveCall(BuiltinID, TheCall, 128);
-  }
-
-  if (BuiltinID == AArch64::BI__builtin_arm_prefetch) {
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 1) ||
-      SemaBuiltinConstantArgRange(TheCall, 2, 0, 2) ||
-      SemaBuiltinConstantArgRange(TheCall, 3, 0, 1) ||
-      SemaBuiltinConstantArgRange(TheCall, 4, 0, 1);
-  }
-
-  if (BuiltinID == AArch64::BI__builtin_arm_rsr64 ||
-      BuiltinID == AArch64::BI__builtin_arm_wsr64)
-    return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 5, true);
-
-  // Memory Tagging Extensions (MTE) Intrinsics
-  if (BuiltinID == AArch64::BI__builtin_arm_irg ||
-      BuiltinID == AArch64::BI__builtin_arm_addg ||
-      BuiltinID == AArch64::BI__builtin_arm_gmi ||
-      BuiltinID == AArch64::BI__builtin_arm_ldg ||
-      BuiltinID == AArch64::BI__builtin_arm_stg ||
-      BuiltinID == AArch64::BI__builtin_arm_subp) {
-    return SemaBuiltinARMMemoryTaggingCall(BuiltinID, TheCall);
-  }
-
-  if (BuiltinID == AArch64::BI__builtin_arm_rsr ||
-      BuiltinID == AArch64::BI__builtin_arm_rsrp ||
-      BuiltinID == AArch64::BI__builtin_arm_wsr ||
-      BuiltinID == AArch64::BI__builtin_arm_wsrp)
-    return SemaBuiltinARMSpecialReg(BuiltinID, TheCall, 0, 5, true);
-
-  // Only check the valid encoding range. Any constant in this range would be
-  // converted to a register of the form S1_2_C3_C4_5. Let the hardware throw
-  // an exception for incorrect registers. This matches MSVC behavior.
-  if (BuiltinID == AArch64::BI_ReadStatusReg ||
-      BuiltinID == AArch64::BI_WriteStatusReg)
-    return SemaBuiltinConstantArgRange(TheCall, 0, 0, 0x7fff);
-
-  if (BuiltinID == AArch64::BI__getReg)
-    return SemaBuiltinConstantArgRange(TheCall, 0, 0, 31);
-
-  if (CheckNeonBuiltinFunctionCall(BuiltinID, TheCall))
-    return true;
-
-  // For intrinsics which take an immediate value as part of the instruction,
-  // range check them here.
-  unsigned i = 0, l = 0, u = 0;
-  switch (BuiltinID) {
-  default: return false;
-  case AArch64::BI__builtin_arm_dmb:
-  case AArch64::BI__builtin_arm_dsb:
-  case AArch64::BI__builtin_arm_isb: l = 0; u = 15; break;
-  }
-
-  return SemaBuiltinConstantArgRange(TheCall, i, l, u + l);
-}
-
-bool Sema::CheckHexagonBuiltinCpu(unsigned BuiltinID, CallExpr *TheCall) {
-  struct BuiltinAndString {
-    unsigned BuiltinID;
-    const char *Str;
-  };
-
-  static BuiltinAndString ValidCPU[] = {
-    { Hexagon::BI__builtin_HEXAGON_A6_vcmpbeq_notany, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_A6_vminub_RdP, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_F2_dfadd, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_F2_dfsub, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_M2_mnaci, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_M6_vabsdiffb, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_M6_vabsdiffub, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S2_mask, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_nac, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_xacc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_nac, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_xacc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_vsplatrbp, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_vtrunehb_ppp, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_S6_vtrunohb_ppp, "v62,v65,v66" },
-  };
-
-  static BuiltinAndString ValidHVX[] = {
-    { Hexagon::BI__builtin_HEXAGON_V6_hi, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_hi_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_lo, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_lo_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_extractw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_extractw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_lvsplatb, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_lvsplatb_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_lvsplath, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_lvsplath_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_lvsplatw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_lvsplatw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_and_n, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_and_n_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_not, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_not_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_or_n, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_or_n_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_scalar2, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_scalar2_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_scalar2v2, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_scalar2v2_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_pred_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_shuffeqh, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_shuffeqh_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_shuffeqw, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_shuffeqw_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsb, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsb_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsb_sat, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsb_sat_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsdiffh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsdiffh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsdiffub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsdiffub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsdiffuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsdiffuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsdiffw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsdiffw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsh_sat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsh_sat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsw_sat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vabsw_sat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddb_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddb_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddbsat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddbsat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddbsat_dv, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddbsat_dv_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddcarry, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddcarry_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddcarrysat, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddcarrysat_128B, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddclbh, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddclbh_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddclbw, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddclbw_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddh_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddh_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddhsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddhsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddhsat_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddhsat_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddhw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddhw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddhw_acc, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddhw_acc_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddubh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddubh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddubh_acc, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddubh_acc_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddubsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddubsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddubsat_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddubsat_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddububb_sat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddububb_sat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduhsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduhsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduhsat_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduhsat_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduhw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduhw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduhw_acc, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduhw_acc_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduwsat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduwsat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduwsat_dv, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vadduwsat_dv_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddw_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddw_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddwsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddwsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddwsat_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaddwsat_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_valignb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_valignb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_valignbi, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_valignbi_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vand, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vand_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandnqrt, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandnqrt_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandnqrt_acc, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandnqrt_acc_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandqrt, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandqrt_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandqrt_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandqrt_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandvnqv, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandvnqv_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandvqv, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandvqv_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandvrt, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandvrt_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandvrt_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vandvrt_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslh_acc, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslh_acc_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslhv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslhv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslw_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslw_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslwv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vaslwv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrh_acc, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrh_acc_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhbrndsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhbrndsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhbsat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhbsat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhubrndsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhubrndsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhubsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhubsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrhv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasr_into, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasr_into_128B, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasruhubrndsat, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasruhubrndsat_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasruhubsat, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasruhubsat_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasruwuhrndsat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasruwuhrndsat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasruwuhsat, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasruwuhsat_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrw_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrw_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwhrndsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwhrndsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwhsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwhsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwuhrndsat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwuhrndsat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwuhsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwuhsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vasrwv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vassign, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vassign_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vassignp, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vassignp_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgb, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgb_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgbrnd, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgbrnd_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavghrnd, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavghrnd_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgubrnd, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgubrnd_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavguh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavguh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavguhrnd, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavguhrnd_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavguw, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavguw_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavguwrnd, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavguwrnd_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgwrnd, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vavgwrnd_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vcl0h, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vcl0h_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vcl0w, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vcl0w_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vcombine, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vcombine_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vd0, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vd0_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdd0, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdd0_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdealb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdealb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdealb4w, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdealb4w_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdealh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdealh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdealvdd, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdealvdd_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdelta, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdelta_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpybus, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpybus_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpybus_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpybus_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpybus_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpybus_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpybus_dv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpybus_dv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhb_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhb_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhb_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhb_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhb_dv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhb_dv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhisat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhisat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhisat_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhisat_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsat_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsat_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsuisat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsuisat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsuisat_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsuisat_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsusat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsusat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsusat_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhsusat_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhvsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhvsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhvsat_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdmpyhvsat_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdsaduh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdsaduh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdsaduh_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vdsaduh_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqb_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqb_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqb_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqb_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqb_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqb_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqh_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqh_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqh_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqh_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqh_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqh_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqw_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqw_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqw_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqw_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqw_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_veqw_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtb_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtb_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtb_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtb_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtb_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtb_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgth, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgth_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgth_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgth_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgth_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgth_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgth_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgth_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtub_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtub_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtub_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtub_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtub_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtub_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuh_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuh_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuh_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuh_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuh_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuh_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuw_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuw_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuw_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuw_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuw_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtuw_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtw_and, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtw_and_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtw_or, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtw_or_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtw_xor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vgtw_xor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vinsertwr, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vinsertwr_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlalignb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlalignb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlalignbi, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlalignbi_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrb, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrb_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrhv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrhv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrwv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlsrwv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlut4, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlut4_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvbi, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvbi_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvb_nm, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvb_nm_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvb_oracc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvb_oracc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvb_oracci, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvvb_oracci_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwhi, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwhi_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwh_nm, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwh_nm_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwh_oracc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwh_oracc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwh_oracci, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlutvwh_oracci_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxb, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxb_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmaxw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminb, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminb_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vminw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabus, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabus_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabus_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabus_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabusv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabusv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabuu, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabuu_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabuu_acc, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabuu_acc_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabuuv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpabuuv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpahb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpahb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpahb_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpahb_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpahhsat, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpahhsat_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpauhb, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpauhb_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpauhb_acc, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpauhb_acc_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpauhuhsat, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpauhuhsat_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpsuhuhsat, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpsuhuhsat_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybus, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybus_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybus_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybus_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybusv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybusv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybusv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybusv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpybv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyewuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyewuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyewuh_64, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyewuh_64_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyh_acc, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyh_acc_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhsat_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhsat_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhsrs, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhsrs_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhss, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhss_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhus, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhus_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhus_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhus_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhvsrs, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyhvsrs_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyieoh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyieoh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiewh_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiewh_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiewuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiewuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiewuh_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiewuh_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyih, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyih_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyih_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyih_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyihb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyihb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyihb_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyihb_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiowh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiowh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwb_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwb_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwh_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwh_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwub, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwub_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwub_acc, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyiwub_acc_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_64_acc, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_64_acc_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_rnd, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_rnd_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_rnd_sacc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_rnd_sacc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_sacc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyowh_sacc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyub_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyub_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyubv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyubv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyubv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyubv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuh_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuh_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuhe, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuhe_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuhe_acc, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuhe_acc_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuhv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuhv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuhv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmpyuhv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmux, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vmux_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnavgb, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnavgb_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnavgh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnavgh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnavgub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnavgub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnavgw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnavgw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnormamth, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnormamth_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnormamtw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnormamtw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnot, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vnot_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackeb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackeb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackeh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackeh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackhb_sat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackhb_sat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackhub_sat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackhub_sat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackob, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackob_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackoh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackoh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackwh_sat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackwh_sat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackwuh_sat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpackwuh_sat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpopcounth, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vpopcounth_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vprefixqb, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vprefixqb_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vprefixqh, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vprefixqh_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vprefixqw, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vprefixqw_128B, "v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrdelta, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrdelta_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybub_rtt, "v65" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybub_rtt_128B, "v65" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybub_rtt_acc, "v65" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybub_rtt_acc_128B, "v65" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybus, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybus_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybus_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybus_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyub_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyub_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyub_rtt, "v65" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyub_rtt_128B, "v65" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyub_rtt_acc, "v65" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyub_rtt_acc_128B, "v65" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubv_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubv_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vror, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vror_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrotr, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrotr_128B, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vroundhb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vroundhb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vroundhub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vroundhub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrounduhub, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrounduhub_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrounduwuh, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrounduwuh_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vroundwh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vroundwh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vroundwuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vroundwuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsatdw, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsatdw_128B, "v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsathub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsathub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsatuwuh, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsatuwuh_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsatwh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsatwh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshufeh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshufeh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffeb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffeb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffob, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffob_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffvdd, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshuffvdd_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshufoeb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshufoeb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshufoeh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshufoeh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshufoh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vshufoh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubb_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubb_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubbsat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubbsat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubbsat_dv, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubbsat_dv_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubcarry, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubcarry_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubh_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubh_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubhsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubhsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubhsat_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubhsat_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubhw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubhw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsububh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsububh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsububsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsububsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsububsat_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsububsat_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubububb_sat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubububb_sat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuhsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuhsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuhsat_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuhsat_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuhw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuhw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuwsat, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuwsat_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuwsat_dv, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubuwsat_dv_128B, "v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubw, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubw_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubw_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubw_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubwsat, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubwsat_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubwsat_dv, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vsubwsat_dv_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vswap, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vswap_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpyb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpyb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpyb_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpyb_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpybus, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpybus_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpybus_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpybus_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpyhb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpyhb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpyhb_acc, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vtmpyhb_acc_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackob, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackob_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackoh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackoh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackub, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackub_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackuh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vunpackuh_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vxor, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vxor_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vzb, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vzb_128B, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vzh, "v60,v62,v65,v66" },
-    { Hexagon::BI__builtin_HEXAGON_V6_vzh_128B, "v60,v62,v65,v66" },
-  };
-
-  // Sort the tables on first execution so we can binary search them.
-  auto SortCmp = [](const BuiltinAndString &LHS, const BuiltinAndString &RHS) {
-    return LHS.BuiltinID < RHS.BuiltinID;
-  };
-  static const bool SortOnce =
-      (llvm::sort(ValidCPU, SortCmp),
-       llvm::sort(ValidHVX, SortCmp), true);
-  (void)SortOnce;
-  auto LowerBoundCmp = [](const BuiltinAndString &BI, unsigned BuiltinID) {
-    return BI.BuiltinID < BuiltinID;
-  };
-
-  const TargetInfo &TI = Context.getTargetInfo();
-
-  const BuiltinAndString *FC =
-      llvm::lower_bound(ValidCPU, BuiltinID, LowerBoundCmp);
-  if (FC != std::end(ValidCPU) && FC->BuiltinID == BuiltinID) {
-    const TargetOptions &Opts = TI.getTargetOpts();
-    StringRef CPU = Opts.CPU;
-    if (!CPU.empty()) {
-      assert(CPU.startswith("hexagon") && "Unexpected CPU name");
-      CPU.consume_front("hexagon");
-      SmallVector<StringRef, 3> CPUs;
-      StringRef(FC->Str).split(CPUs, ',');
-      if (llvm::none_of(CPUs, [CPU](StringRef S) { return S == CPU; }))
-        return Diag(TheCall->getBeginLoc(),
-                    diag::err_hexagon_builtin_unsupported_cpu);
-    }
-  }
-
-  const BuiltinAndString *FH =
-      llvm::lower_bound(ValidHVX, BuiltinID, LowerBoundCmp);
-  if (FH != std::end(ValidHVX) && FH->BuiltinID == BuiltinID) {
-    if (!TI.hasFeature("hvx"))
-      return Diag(TheCall->getBeginLoc(),
-                  diag::err_hexagon_builtin_requires_hvx);
-
-    SmallVector<StringRef, 3> HVXs;
-    StringRef(FH->Str).split(HVXs, ',');
-    bool IsValid = llvm::any_of(HVXs,
-                                [&TI] (StringRef V) {
-                                  std::string F = "hvx" + V.str();
-                                  return TI.hasFeature(F);
-                                });
-    if (!IsValid)
-      return Diag(TheCall->getBeginLoc(),
-                  diag::err_hexagon_builtin_unsupported_hvx);
-  }
-
-  return false;
-}
-
-bool Sema::CheckHexagonBuiltinArgument(unsigned BuiltinID, CallExpr *TheCall) {
-  struct ArgInfo {
-    uint8_t OpNum;
-    bool IsSigned;
-    uint8_t BitWidth;
-    uint8_t Align;
-  };
-  struct BuiltinInfo {
-    unsigned BuiltinID;
-    ArgInfo Infos[2];
-  };
-
-  static BuiltinInfo Infos[] = {
-    { Hexagon::BI__builtin_circ_ldd,                  {{ 3, true,  4,  3 }} },
-    { Hexagon::BI__builtin_circ_ldw,                  {{ 3, true,  4,  2 }} },
-    { Hexagon::BI__builtin_circ_ldh,                  {{ 3, true,  4,  1 }} },
-    { Hexagon::BI__builtin_circ_lduh,                 {{ 3, true,  4,  0 }} },
-    { Hexagon::BI__builtin_circ_ldb,                  {{ 3, true,  4,  0 }} },
-    { Hexagon::BI__builtin_circ_ldub,                 {{ 3, true,  4,  0 }} },
-    { Hexagon::BI__builtin_circ_std,                  {{ 3, true,  4,  3 }} },
-    { Hexagon::BI__builtin_circ_stw,                  {{ 3, true,  4,  2 }} },
-    { Hexagon::BI__builtin_circ_sth,                  {{ 3, true,  4,  1 }} },
-    { Hexagon::BI__builtin_circ_sthhi,                {{ 3, true,  4,  1 }} },
-    { Hexagon::BI__builtin_circ_stb,                  {{ 3, true,  4,  0 }} },
-
-    { Hexagon::BI__builtin_HEXAGON_L2_loadrub_pci,    {{ 1, true,  4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_L2_loadrb_pci,     {{ 1, true,  4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_L2_loadruh_pci,    {{ 1, true,  4,  1 }} },
-    { Hexagon::BI__builtin_HEXAGON_L2_loadrh_pci,     {{ 1, true,  4,  1 }} },
-    { Hexagon::BI__builtin_HEXAGON_L2_loadri_pci,     {{ 1, true,  4,  2 }} },
-    { Hexagon::BI__builtin_HEXAGON_L2_loadrd_pci,     {{ 1, true,  4,  3 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_storerb_pci,    {{ 1, true,  4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_storerh_pci,    {{ 1, true,  4,  1 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_storerf_pci,    {{ 1, true,  4,  1 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_storeri_pci,    {{ 1, true,  4,  2 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_storerd_pci,    {{ 1, true,  4,  3 }} },
-
-    { Hexagon::BI__builtin_HEXAGON_A2_combineii,      {{ 1, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A2_tfrih,          {{ 1, false, 16, 0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A2_tfril,          {{ 1, false, 16, 0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A2_tfrpi,          {{ 0, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_bitspliti,      {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_cmpbeqi,        {{ 1, false, 8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_cmpbgti,        {{ 1, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_cround_ri,      {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_round_ri,       {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_round_ri_sat,   {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmpbeqi,       {{ 1, false, 8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmpbgti,       {{ 1, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmpbgtui,      {{ 1, false, 7,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmpheqi,       {{ 1, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmphgti,       {{ 1, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmphgtui,      {{ 1, false, 7,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmpweqi,       {{ 1, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmpwgti,       {{ 1, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_A4_vcmpwgtui,      {{ 1, false, 7,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_C2_bitsclri,       {{ 1, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_C2_muxii,          {{ 2, true,  8,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_C4_nbitsclri,      {{ 1, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_F2_dfclass,        {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_F2_dfimm_n,        {{ 0, false, 10, 0 }} },
-    { Hexagon::BI__builtin_HEXAGON_F2_dfimm_p,        {{ 0, false, 10, 0 }} },
-    { Hexagon::BI__builtin_HEXAGON_F2_sfclass,        {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_F2_sfimm_n,        {{ 0, false, 10, 0 }} },
-    { Hexagon::BI__builtin_HEXAGON_F2_sfimm_p,        {{ 0, false, 10, 0 }} },
-    { Hexagon::BI__builtin_HEXAGON_M4_mpyri_addi,     {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_M4_mpyri_addr_u2,  {{ 1, false, 6,  2 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_addasl_rrri,    {{ 2, false, 3,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_acc,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_and,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p,        {{ 1, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_nac,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_or,     {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_p_xacc,   {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_acc,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_and,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r,        {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_nac,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_or,     {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_sat,    {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_r_xacc,   {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_vh,       {{ 1, false, 4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asl_i_vw,       {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_acc,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_and,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p,        {{ 1, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_nac,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_or,     {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_rnd_goodsyntax,
-                                                      {{ 1, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_p_rnd,    {{ 1, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_acc,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_and,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r,        {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_nac,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_or,     {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_rnd_goodsyntax,
-                                                      {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_r_rnd,    {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_svw_trun, {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_vh,       {{ 1, false, 4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_asr_i_vw,       {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_clrbit_i,       {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_extractu,       {{ 1, false, 5,  0 },
-                                                       { 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_extractup,      {{ 1, false, 6,  0 },
-                                                       { 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_insert,         {{ 2, false, 5,  0 },
-                                                       { 3, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_insertp,        {{ 2, false, 6,  0 },
-                                                       { 3, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_acc,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_and,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p,        {{ 1, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_nac,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_or,     {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_p_xacc,   {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_acc,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_and,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r,        {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_nac,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_or,     {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_r_xacc,   {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_vh,       {{ 1, false, 4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_lsr_i_vw,       {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_setbit_i,       {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_tableidxb_goodsyntax,
-                                                      {{ 2, false, 4,  0 },
-                                                       { 3, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_tableidxd_goodsyntax,
-                                                      {{ 2, false, 4,  0 },
-                                                       { 3, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_tableidxh_goodsyntax,
-                                                      {{ 2, false, 4,  0 },
-                                                       { 3, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_tableidxw_goodsyntax,
-                                                      {{ 2, false, 4,  0 },
-                                                       { 3, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_togglebit_i,    {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_tstbit_i,       {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_valignib,       {{ 2, false, 3,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S2_vspliceib,      {{ 2, false, 3,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_addi_asl_ri,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_addi_lsr_ri,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_andi_asl_ri,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_andi_lsr_ri,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_clbaddi,        {{ 1, true , 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_clbpaddi,       {{ 1, true,  6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_extract,        {{ 1, false, 5,  0 },
-                                                       { 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_extractp,       {{ 1, false, 6,  0 },
-                                                       { 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_lsli,           {{ 0, true,  6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_ntstbit_i,      {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_ori_asl_ri,     {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_ori_lsr_ri,     {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_subi_asl_ri,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_subi_lsr_ri,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_vrcrotate_acc,  {{ 3, false, 2,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S4_vrcrotate,      {{ 2, false, 2,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S5_asrhub_rnd_sat_goodsyntax,
-                                                      {{ 1, false, 4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S5_asrhub_sat,     {{ 1, false, 4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S5_vasrhrnd_goodsyntax,
-                                                      {{ 1, false, 4,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p,        {{ 1, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_acc,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_and,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_nac,    {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_or,     {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_p_xacc,   {{ 2, false, 6,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r,        {{ 1, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_acc,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_and,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_nac,    {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_or,     {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_S6_rol_i_r_xacc,   {{ 2, false, 5,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_valignbi,       {{ 2, false, 3,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_valignbi_128B,  {{ 2, false, 3,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlalignbi,      {{ 2, false, 3,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vlalignbi_128B, {{ 2, false, 3,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi,      {{ 2, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_128B, {{ 2, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_acc,  {{ 3, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpybusi_acc_128B,
-                                                      {{ 3, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi,       {{ 2, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_128B,  {{ 2, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_acc,   {{ 3, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrmpyubi_acc_128B,
-                                                      {{ 3, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi,       {{ 2, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_128B,  {{ 2, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_acc,   {{ 3, false, 1,  0 }} },
-    { Hexagon::BI__builtin_HEXAGON_V6_vrsadubi_acc_128B,
-                                                      {{ 3, false, 1,  0 }} },
-  };
-
-  // Use a dynamically initialized static to sort the table exactly once on
-  // first run.
-  static const bool SortOnce =
-      (llvm::sort(Infos,
-                 [](const BuiltinInfo &LHS, const BuiltinInfo &RHS) {
-                   return LHS.BuiltinID < RHS.BuiltinID;
-                 }),
-       true);
-  (void)SortOnce;
-
-  const BuiltinInfo *F = llvm::partition_point(
-      Infos, [=](const BuiltinInfo &BI) { return BI.BuiltinID < BuiltinID; });
-  if (F == std::end(Infos) || F->BuiltinID != BuiltinID)
-    return false;
-
-  bool Error = false;
-
-  for (const ArgInfo &A : F->Infos) {
-    // Ignore empty ArgInfo elements.
-    if (A.BitWidth == 0)
-      continue;
-
-    int32_t Min = A.IsSigned ? -(1 << (A.BitWidth - 1)) : 0;
-    int32_t Max = (1 << (A.IsSigned ? A.BitWidth - 1 : A.BitWidth)) - 1;
-    if (!A.Align) {
-      Error |= SemaBuiltinConstantArgRange(TheCall, A.OpNum, Min, Max);
-    } else {
-      unsigned M = 1 << A.Align;
-      Min *= M;
-      Max *= M;
-      Error |= SemaBuiltinConstantArgRange(TheCall, A.OpNum, Min, Max) |
-               SemaBuiltinConstantArgMultiple(TheCall, A.OpNum, M);
-    }
-  }
-  return Error;
-}
-
-bool Sema::CheckHexagonBuiltinFunctionCall(unsigned BuiltinID,
-                                           CallExpr *TheCall) {
-  return CheckHexagonBuiltinCpu(BuiltinID, TheCall) ||
-         CheckHexagonBuiltinArgument(BuiltinID, TheCall);
-}
-
-
-// CheckMipsBuiltinFunctionCall - Checks the constant value passed to the
-// intrinsic is correct. The switch statement is ordered by DSP, MSA. The
-// ordering for DSP is unspecified. MSA is ordered by the data format used
-// by the underlying instruction i.e., df/m, df/n and then by size.
-//
-// FIXME: The size tests here should instead be tablegen'd along with the
-//        definitions from include/clang/Basic/BuiltinsMips.def.
-// FIXME: GCC is strict on signedness for some of these intrinsics, we should
-//        be too.
-bool Sema::CheckMipsBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
-  unsigned i = 0, l = 0, u = 0, m = 0;
-  switch (BuiltinID) {
-  default: return false;
-  case Mips::BI__builtin_mips_wrdsp: i = 1; l = 0; u = 63; break;
-  case Mips::BI__builtin_mips_rddsp: i = 0; l = 0; u = 63; break;
-  case Mips::BI__builtin_mips_append: i = 2; l = 0; u = 31; break;
-  case Mips::BI__builtin_mips_balign: i = 2; l = 0; u = 3; break;
-  case Mips::BI__builtin_mips_precr_sra_ph_w: i = 2; l = 0; u = 31; break;
-  case Mips::BI__builtin_mips_precr_sra_r_ph_w: i = 2; l = 0; u = 31; break;
-  case Mips::BI__builtin_mips_prepend: i = 2; l = 0; u = 31; break;
-  // MSA intrinsics. Instructions (which the intrinsics maps to) which use the
-  // df/m field.
-  // These intrinsics take an unsigned 3 bit immediate.
-  case Mips::BI__builtin_msa_bclri_b:
-  case Mips::BI__builtin_msa_bnegi_b:
-  case Mips::BI__builtin_msa_bseti_b:
-  case Mips::BI__builtin_msa_sat_s_b:
-  case Mips::BI__builtin_msa_sat_u_b:
-  case Mips::BI__builtin_msa_slli_b:
-  case Mips::BI__builtin_msa_srai_b:
-  case Mips::BI__builtin_msa_srari_b:
-  case Mips::BI__builtin_msa_srli_b:
-  case Mips::BI__builtin_msa_srlri_b: i = 1; l = 0; u = 7; break;
-  case Mips::BI__builtin_msa_binsli_b:
-  case Mips::BI__builtin_msa_binsri_b: i = 2; l = 0; u = 7; break;
-  // These intrinsics take an unsigned 4 bit immediate.
-  case Mips::BI__builtin_msa_bclri_h:
-  case Mips::BI__builtin_msa_bnegi_h:
-  case Mips::BI__builtin_msa_bseti_h:
-  case Mips::BI__builtin_msa_sat_s_h:
-  case Mips::BI__builtin_msa_sat_u_h:
-  case Mips::BI__builtin_msa_slli_h:
-  case Mips::BI__builtin_msa_srai_h:
-  case Mips::BI__builtin_msa_srari_h:
-  case Mips::BI__builtin_msa_srli_h:
-  case Mips::BI__builtin_msa_srlri_h: i = 1; l = 0; u = 15; break;
-  case Mips::BI__builtin_msa_binsli_h:
-  case Mips::BI__builtin_msa_binsri_h: i = 2; l = 0; u = 15; break;
-  // These intrinsics take an unsigned 5 bit immediate.
-  // The first block of intrinsics actually have an unsigned 5 bit field,
-  // not a df/n field.
-  case Mips::BI__builtin_msa_cfcmsa:
-  case Mips::BI__builtin_msa_ctcmsa: i = 0; l = 0; u = 31; break;
-  case Mips::BI__builtin_msa_clei_u_b:
-  case Mips::BI__builtin_msa_clei_u_h:
-  case Mips::BI__builtin_msa_clei_u_w:
-  case Mips::BI__builtin_msa_clei_u_d:
-  case Mips::BI__builtin_msa_clti_u_b:
-  case Mips::BI__builtin_msa_clti_u_h:
-  case Mips::BI__builtin_msa_clti_u_w:
-  case Mips::BI__builtin_msa_clti_u_d:
-  case Mips::BI__builtin_msa_maxi_u_b:
-  case Mips::BI__builtin_msa_maxi_u_h:
-  case Mips::BI__builtin_msa_maxi_u_w:
-  case Mips::BI__builtin_msa_maxi_u_d:
-  case Mips::BI__builtin_msa_mini_u_b:
-  case Mips::BI__builtin_msa_mini_u_h:
-  case Mips::BI__builtin_msa_mini_u_w:
-  case Mips::BI__builtin_msa_mini_u_d:
-  case Mips::BI__builtin_msa_addvi_b:
-  case Mips::BI__builtin_msa_addvi_h:
-  case Mips::BI__builtin_msa_addvi_w:
-  case Mips::BI__builtin_msa_addvi_d:
-  case Mips::BI__builtin_msa_bclri_w:
-  case Mips::BI__builtin_msa_bnegi_w:
-  case Mips::BI__builtin_msa_bseti_w:
-  case Mips::BI__builtin_msa_sat_s_w:
-  case Mips::BI__builtin_msa_sat_u_w:
-  case Mips::BI__builtin_msa_slli_w:
-  case Mips::BI__builtin_msa_srai_w:
-  case Mips::BI__builtin_msa_srari_w:
-  case Mips::BI__builtin_msa_srli_w:
-  case Mips::BI__builtin_msa_srlri_w:
-  case Mips::BI__builtin_msa_subvi_b:
-  case Mips::BI__builtin_msa_subvi_h:
-  case Mips::BI__builtin_msa_subvi_w:
-  case Mips::BI__builtin_msa_subvi_d: i = 1; l = 0; u = 31; break;
-  case Mips::BI__builtin_msa_binsli_w:
-  case Mips::BI__builtin_msa_binsri_w: i = 2; l = 0; u = 31; break;
-  // These intrinsics take an unsigned 6 bit immediate.
-  case Mips::BI__builtin_msa_bclri_d:
-  case Mips::BI__builtin_msa_bnegi_d:
-  case Mips::BI__builtin_msa_bseti_d:
-  case Mips::BI__builtin_msa_sat_s_d:
-  case Mips::BI__builtin_msa_sat_u_d:
-  case Mips::BI__builtin_msa_slli_d:
-  case Mips::BI__builtin_msa_srai_d:
-  case Mips::BI__builtin_msa_srari_d:
-  case Mips::BI__builtin_msa_srli_d:
-  case Mips::BI__builtin_msa_srlri_d: i = 1; l = 0; u = 63; break;
-  case Mips::BI__builtin_msa_binsli_d:
-  case Mips::BI__builtin_msa_binsri_d: i = 2; l = 0; u = 63; break;
-  // These intrinsics take a signed 5 bit immediate.
-  case Mips::BI__builtin_msa_ceqi_b:
-  case Mips::BI__builtin_msa_ceqi_h:
-  case Mips::BI__builtin_msa_ceqi_w:
-  case Mips::BI__builtin_msa_ceqi_d:
-  case Mips::BI__builtin_msa_clti_s_b:
-  case Mips::BI__builtin_msa_clti_s_h:
-  case Mips::BI__builtin_msa_clti_s_w:
-  case Mips::BI__builtin_msa_clti_s_d:
-  case Mips::BI__builtin_msa_clei_s_b:
-  case Mips::BI__builtin_msa_clei_s_h:
-  case Mips::BI__builtin_msa_clei_s_w:
-  case Mips::BI__builtin_msa_clei_s_d:
-  case Mips::BI__builtin_msa_maxi_s_b:
-  case Mips::BI__builtin_msa_maxi_s_h:
-  case Mips::BI__builtin_msa_maxi_s_w:
-  case Mips::BI__builtin_msa_maxi_s_d:
-  case Mips::BI__builtin_msa_mini_s_b:
-  case Mips::BI__builtin_msa_mini_s_h:
-  case Mips::BI__builtin_msa_mini_s_w:
-  case Mips::BI__builtin_msa_mini_s_d: i = 1; l = -16; u = 15; break;
-  // These intrinsics take an unsigned 8 bit immediate.
-  case Mips::BI__builtin_msa_andi_b:
-  case Mips::BI__builtin_msa_nori_b:
-  case Mips::BI__builtin_msa_ori_b:
-  case Mips::BI__builtin_msa_shf_b:
-  case Mips::BI__builtin_msa_shf_h:
-  case Mips::BI__builtin_msa_shf_w:
-  case Mips::BI__builtin_msa_xori_b: i = 1; l = 0; u = 255; break;
-  case Mips::BI__builtin_msa_bseli_b:
-  case Mips::BI__builtin_msa_bmnzi_b:
-  case Mips::BI__builtin_msa_bmzi_b: i = 2; l = 0; u = 255; break;
-  // df/n format
-  // These intrinsics take an unsigned 4 bit immediate.
-  case Mips::BI__builtin_msa_copy_s_b:
-  case Mips::BI__builtin_msa_copy_u_b:
-  case Mips::BI__builtin_msa_insve_b:
-  case Mips::BI__builtin_msa_splati_b: i = 1; l = 0; u = 15; break;
-  case Mips::BI__builtin_msa_sldi_b: i = 2; l = 0; u = 15; break;
-  // These intrinsics take an unsigned 3 bit immediate.
-  case Mips::BI__builtin_msa_copy_s_h:
-  case Mips::BI__builtin_msa_copy_u_h:
-  case Mips::BI__builtin_msa_insve_h:
-  case Mips::BI__builtin_msa_splati_h: i = 1; l = 0; u = 7; break;
-  case Mips::BI__builtin_msa_sldi_h: i = 2; l = 0; u = 7; break;
-  // These intrinsics take an unsigned 2 bit immediate.
-  case Mips::BI__builtin_msa_copy_s_w:
-  case Mips::BI__builtin_msa_copy_u_w:
-  case Mips::BI__builtin_msa_insve_w:
-  case Mips::BI__builtin_msa_splati_w: i = 1; l = 0; u = 3; break;
-  case Mips::BI__builtin_msa_sldi_w: i = 2; l = 0; u = 3; break;
-  // These intrinsics take an unsigned 1 bit immediate.
-  case Mips::BI__builtin_msa_copy_s_d:
-  case Mips::BI__builtin_msa_copy_u_d:
-  case Mips::BI__builtin_msa_insve_d:
-  case Mips::BI__builtin_msa_splati_d: i = 1; l = 0; u = 1; break;
-  case Mips::BI__builtin_msa_sldi_d: i = 2; l = 0; u = 1; break;
-  // Memory offsets and immediate loads.
-  // These intrinsics take a signed 10 bit immediate.
-  case Mips::BI__builtin_msa_ldi_b: i = 0; l = -128; u = 255; break;
-  case Mips::BI__builtin_msa_ldi_h:
-  case Mips::BI__builtin_msa_ldi_w:
-  case Mips::BI__builtin_msa_ldi_d: i = 0; l = -512; u = 511; break;
-  case Mips::BI__builtin_msa_ld_b: i = 1; l = -512; u = 511; m = 1; break;
-  case Mips::BI__builtin_msa_ld_h: i = 1; l = -1024; u = 1022; m = 2; break;
-  case Mips::BI__builtin_msa_ld_w: i = 1; l = -2048; u = 2044; m = 4; break;
-  case Mips::BI__builtin_msa_ld_d: i = 1; l = -4096; u = 4088; m = 8; break;
-  case Mips::BI__builtin_msa_st_b: i = 2; l = -512; u = 511; m = 1; break;
-  case Mips::BI__builtin_msa_st_h: i = 2; l = -1024; u = 1022; m = 2; break;
-  case Mips::BI__builtin_msa_st_w: i = 2; l = -2048; u = 2044; m = 4; break;
-  case Mips::BI__builtin_msa_st_d: i = 2; l = -4096; u = 4088; m = 8; break;
-  }
-
-  if (!m)
-    return SemaBuiltinConstantArgRange(TheCall, i, l, u);
-
-  return SemaBuiltinConstantArgRange(TheCall, i, l, u) ||
-         SemaBuiltinConstantArgMultiple(TheCall, i, m);
-}
-
-bool Sema::CheckPPCBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
-  unsigned i = 0, l = 0, u = 0;
-  bool Is64BitBltin = BuiltinID == PPC::BI__builtin_divde ||
-                      BuiltinID == PPC::BI__builtin_divdeu ||
-                      BuiltinID == PPC::BI__builtin_bpermd;
-  bool IsTarget64Bit = Context.getTargetInfo()
-                              .getTypeWidth(Context
-                                            .getTargetInfo()
-                                            .getIntPtrType()) == 64;
-  bool IsBltinExtDiv = BuiltinID == PPC::BI__builtin_divwe ||
-                       BuiltinID == PPC::BI__builtin_divweu ||
-                       BuiltinID == PPC::BI__builtin_divde ||
-                       BuiltinID == PPC::BI__builtin_divdeu;
-
-  if (Is64BitBltin && !IsTarget64Bit)
-    return Diag(TheCall->getBeginLoc(), diag::err_64_bit_builtin_32_bit_tgt)
-           << TheCall->getSourceRange();
-
-  if ((IsBltinExtDiv && !Context.getTargetInfo().hasFeature("extdiv")) ||
-      (BuiltinID == PPC::BI__builtin_bpermd &&
-       !Context.getTargetInfo().hasFeature("bpermd")))
-    return Diag(TheCall->getBeginLoc(), diag::err_ppc_builtin_only_on_pwr7)
-           << TheCall->getSourceRange();
-
-  auto SemaVSXCheck = [&](CallExpr *TheCall) -> bool {
-    if (!Context.getTargetInfo().hasFeature("vsx"))
-      return Diag(TheCall->getBeginLoc(), diag::err_ppc_builtin_only_on_pwr7)
-             << TheCall->getSourceRange();
-    return false;
-  };
-
-  switch (BuiltinID) {
-  default: return false;
-  case PPC::BI__builtin_altivec_crypto_vshasigmaw:
-  case PPC::BI__builtin_altivec_crypto_vshasigmad:
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 1) ||
-           SemaBuiltinConstantArgRange(TheCall, 2, 0, 15);
-  case PPC::BI__builtin_tbegin:
-  case PPC::BI__builtin_tend: i = 0; l = 0; u = 1; break;
-  case PPC::BI__builtin_tsr: i = 0; l = 0; u = 7; break;
-  case PPC::BI__builtin_tabortwc:
-  case PPC::BI__builtin_tabortdc: i = 0; l = 0; u = 31; break;
-  case PPC::BI__builtin_tabortwci:
-  case PPC::BI__builtin_tabortdci:
-    return SemaBuiltinConstantArgRange(TheCall, 0, 0, 31) ||
-           SemaBuiltinConstantArgRange(TheCall, 2, 0, 31);
-  case PPC::BI__builtin_vsx_xxpermdi:
-  case PPC::BI__builtin_vsx_xxsldwi:
-    return SemaBuiltinVSX(TheCall);
-  case PPC::BI__builtin_unpack_vector_int128:
-    return SemaVSXCheck(TheCall) ||
-           SemaBuiltinConstantArgRange(TheCall, 1, 0, 1);
-  case PPC::BI__builtin_pack_vector_int128:
-    return SemaVSXCheck(TheCall);
-  }
-  return SemaBuiltinConstantArgRange(TheCall, i, l, u);
-}
-
-bool Sema::CheckSystemZBuiltinFunctionCall(unsigned BuiltinID,
-                                           CallExpr *TheCall) {
-  if (BuiltinID == SystemZ::BI__builtin_tabort) {
-    Expr *Arg = TheCall->getArg(0);
-    llvm::APSInt AbortCode(32);
-    if (Arg->isIntegerConstantExpr(AbortCode, Context) &&
-        AbortCode.getSExtValue() >= 0 && AbortCode.getSExtValue() < 256)
-      return Diag(Arg->getBeginLoc(), diag::err_systemz_invalid_tabort_code)
-             << Arg->getSourceRange();
-  }
-
-  // For intrinsics which take an immediate value as part of the instruction,
-  // range check them here.
-  unsigned i = 0, l = 0, u = 0;
-  switch (BuiltinID) {
-  default: return false;
-  case SystemZ::BI__builtin_s390_lcbb: i = 1; l = 0; u = 15; break;
-  case SystemZ::BI__builtin_s390_verimb:
-  case SystemZ::BI__builtin_s390_verimh:
-  case SystemZ::BI__builtin_s390_verimf:
-  case SystemZ::BI__builtin_s390_verimg: i = 3; l = 0; u = 255; break;
-  case SystemZ::BI__builtin_s390_vfaeb:
-  case SystemZ::BI__builtin_s390_vfaeh:
-  case SystemZ::BI__builtin_s390_vfaef:
-  case SystemZ::BI__builtin_s390_vfaebs:
-  case SystemZ::BI__builtin_s390_vfaehs:
-  case SystemZ::BI__builtin_s390_vfaefs:
-  case SystemZ::BI__builtin_s390_vfaezb:
-  case SystemZ::BI__builtin_s390_vfaezh:
-  case SystemZ::BI__builtin_s390_vfaezf:
-  case SystemZ::BI__builtin_s390_vfaezbs:
-  case SystemZ::BI__builtin_s390_vfaezhs:
-  case SystemZ::BI__builtin_s390_vfaezfs: i = 2; l = 0; u = 15; break;
-  case SystemZ::BI__builtin_s390_vfisb:
-  case SystemZ::BI__builtin_s390_vfidb:
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 15) ||
-           SemaBuiltinConstantArgRange(TheCall, 2, 0, 15);
-  case SystemZ::BI__builtin_s390_vftcisb:
-  case SystemZ::BI__builtin_s390_vftcidb: i = 1; l = 0; u = 4095; break;
-  case SystemZ::BI__builtin_s390_vlbb: i = 1; l = 0; u = 15; break;
-  case SystemZ::BI__builtin_s390_vpdi: i = 2; l = 0; u = 15; break;
-  case SystemZ::BI__builtin_s390_vsldb: i = 2; l = 0; u = 15; break;
-  case SystemZ::BI__builtin_s390_vstrcb:
-  case SystemZ::BI__builtin_s390_vstrch:
-  case SystemZ::BI__builtin_s390_vstrcf:
-  case SystemZ::BI__builtin_s390_vstrczb:
-  case SystemZ::BI__builtin_s390_vstrczh:
-  case SystemZ::BI__builtin_s390_vstrczf:
-  case SystemZ::BI__builtin_s390_vstrcbs:
-  case SystemZ::BI__builtin_s390_vstrchs:
-  case SystemZ::BI__builtin_s390_vstrcfs:
-  case SystemZ::BI__builtin_s390_vstrczbs:
-  case SystemZ::BI__builtin_s390_vstrczhs:
-  case SystemZ::BI__builtin_s390_vstrczfs: i = 3; l = 0; u = 15; break;
-  case SystemZ::BI__builtin_s390_vmslg: i = 3; l = 0; u = 15; break;
-  case SystemZ::BI__builtin_s390_vfminsb:
-  case SystemZ::BI__builtin_s390_vfmaxsb:
-  case SystemZ::BI__builtin_s390_vfmindb:
-  case SystemZ::BI__builtin_s390_vfmaxdb: i = 2; l = 0; u = 15; break;
-  case SystemZ::BI__builtin_s390_vsld: i = 2; l = 0; u = 7; break;
-  case SystemZ::BI__builtin_s390_vsrd: i = 2; l = 0; u = 7; break;
-  }
-  return SemaBuiltinConstantArgRange(TheCall, i, l, u);
-}
-
-/// SemaBuiltinCpuSupports - Handle __builtin_cpu_supports(char *).
-/// This checks that the target supports __builtin_cpu_supports and
-/// that the string argument is constant and valid.
-static bool SemaBuiltinCpuSupports(Sema &S, CallExpr *TheCall) {
-  Expr *Arg = TheCall->getArg(0);
-
-  // Check if the argument is a string literal.
-  if (!isa<StringLiteral>(Arg->IgnoreParenImpCasts()))
-    return S.Diag(TheCall->getBeginLoc(), diag::err_expr_not_string_literal)
-           << Arg->getSourceRange();
-
-  // Check the contents of the string.
-  StringRef Feature =
-      cast<StringLiteral>(Arg->IgnoreParenImpCasts())->getString();
-  if (!S.Context.getTargetInfo().validateCpuSupports(Feature))
-    return S.Diag(TheCall->getBeginLoc(), diag::err_invalid_cpu_supports)
-           << Arg->getSourceRange();
-  return false;
-}
-
-/// SemaBuiltinCpuIs - Handle __builtin_cpu_is(char *).
-/// This checks that the target supports __builtin_cpu_is and
-/// that the string argument is constant and valid.
-static bool SemaBuiltinCpuIs(Sema &S, CallExpr *TheCall) {
-  Expr *Arg = TheCall->getArg(0);
-
-  // Check if the argument is a string literal.
-  if (!isa<StringLiteral>(Arg->IgnoreParenImpCasts()))
-    return S.Diag(TheCall->getBeginLoc(), diag::err_expr_not_string_literal)
-           << Arg->getSourceRange();
-
-  // Check the contents of the string.
-  StringRef Feature =
-      cast<StringLiteral>(Arg->IgnoreParenImpCasts())->getString();
-  if (!S.Context.getTargetInfo().validateCpuIs(Feature))
-    return S.Diag(TheCall->getBeginLoc(), diag::err_invalid_cpu_is)
-           << Arg->getSourceRange();
-  return false;
-}
-
-// Check if the rounding mode is legal.
-bool Sema::CheckX86BuiltinRoundingOrSAE(unsigned BuiltinID, CallExpr *TheCall) {
-  // Indicates if this instruction has rounding control or just SAE.
-  bool HasRC = false;
-
-  unsigned ArgNum = 0;
-  switch (BuiltinID) {
-  default:
-    return false;
-  case X86::BI__builtin_ia32_vcvttsd2si32:
-  case X86::BI__builtin_ia32_vcvttsd2si64:
-  case X86::BI__builtin_ia32_vcvttsd2usi32:
-  case X86::BI__builtin_ia32_vcvttsd2usi64:
-  case X86::BI__builtin_ia32_vcvttss2si32:
-  case X86::BI__builtin_ia32_vcvttss2si64:
-  case X86::BI__builtin_ia32_vcvttss2usi32:
-  case X86::BI__builtin_ia32_vcvttss2usi64:
-    ArgNum = 1;
-    break;
-  case X86::BI__builtin_ia32_maxpd512:
-  case X86::BI__builtin_ia32_maxps512:
-  case X86::BI__builtin_ia32_minpd512:
-  case X86::BI__builtin_ia32_minps512:
-    ArgNum = 2;
-    break;
-  case X86::BI__builtin_ia32_cvtps2pd512_mask:
-  case X86::BI__builtin_ia32_cvttpd2dq512_mask:
-  case X86::BI__builtin_ia32_cvttpd2qq512_mask:
-  case X86::BI__builtin_ia32_cvttpd2udq512_mask:
-  case X86::BI__builtin_ia32_cvttpd2uqq512_mask:
-  case X86::BI__builtin_ia32_cvttps2dq512_mask:
-  case X86::BI__builtin_ia32_cvttps2qq512_mask:
-  case X86::BI__builtin_ia32_cvttps2udq512_mask:
-  case X86::BI__builtin_ia32_cvttps2uqq512_mask:
-  case X86::BI__builtin_ia32_exp2pd_mask:
-  case X86::BI__builtin_ia32_exp2ps_mask:
-  case X86::BI__builtin_ia32_getexppd512_mask:
-  case X86::BI__builtin_ia32_getexpps512_mask:
-  case X86::BI__builtin_ia32_rcp28pd_mask:
-  case X86::BI__builtin_ia32_rcp28ps_mask:
-  case X86::BI__builtin_ia32_rsqrt28pd_mask:
-  case X86::BI__builtin_ia32_rsqrt28ps_mask:
-  case X86::BI__builtin_ia32_vcomisd:
-  case X86::BI__builtin_ia32_vcomiss:
-  case X86::BI__builtin_ia32_vcvtph2ps512_mask:
-    ArgNum = 3;
-    break;
-  case X86::BI__builtin_ia32_cmppd512_mask:
-  case X86::BI__builtin_ia32_cmpps512_mask:
-  case X86::BI__builtin_ia32_cmpsd_mask:
-  case X86::BI__builtin_ia32_cmpss_mask:
-  case X86::BI__builtin_ia32_cvtss2sd_round_mask:
-  case X86::BI__builtin_ia32_getexpsd128_round_mask:
-  case X86::BI__builtin_ia32_getexpss128_round_mask:
-  case X86::BI__builtin_ia32_getmantpd512_mask:
-  case X86::BI__builtin_ia32_getmantps512_mask:
-  case X86::BI__builtin_ia32_maxsd_round_mask:
-  case X86::BI__builtin_ia32_maxss_round_mask:
-  case X86::BI__builtin_ia32_minsd_round_mask:
-  case X86::BI__builtin_ia32_minss_round_mask:
-  case X86::BI__builtin_ia32_rcp28sd_round_mask:
-  case X86::BI__builtin_ia32_rcp28ss_round_mask:
-  case X86::BI__builtin_ia32_reducepd512_mask:
-  case X86::BI__builtin_ia32_reduceps512_mask:
-  case X86::BI__builtin_ia32_rndscalepd_mask:
-  case X86::BI__builtin_ia32_rndscaleps_mask:
-  case X86::BI__builtin_ia32_rsqrt28sd_round_mask:
-  case X86::BI__builtin_ia32_rsqrt28ss_round_mask:
-    ArgNum = 4;
-    break;
-  case X86::BI__builtin_ia32_fixupimmpd512_mask:
-  case X86::BI__builtin_ia32_fixupimmpd512_maskz:
-  case X86::BI__builtin_ia32_fixupimmps512_mask:
-  case X86::BI__builtin_ia32_fixupimmps512_maskz:
-  case X86::BI__builtin_ia32_fixupimmsd_mask:
-  case X86::BI__builtin_ia32_fixupimmsd_maskz:
-  case X86::BI__builtin_ia32_fixupimmss_mask:
-  case X86::BI__builtin_ia32_fixupimmss_maskz:
-  case X86::BI__builtin_ia32_getmantsd_round_mask:
-  case X86::BI__builtin_ia32_getmantss_round_mask:
-  case X86::BI__builtin_ia32_rangepd512_mask:
-  case X86::BI__builtin_ia32_rangeps512_mask:
-  case X86::BI__builtin_ia32_rangesd128_round_mask:
-  case X86::BI__builtin_ia32_rangess128_round_mask:
-  case X86::BI__builtin_ia32_reducesd_mask:
-  case X86::BI__builtin_ia32_reducess_mask:
-  case X86::BI__builtin_ia32_rndscalesd_round_mask:
-  case X86::BI__builtin_ia32_rndscaless_round_mask:
-    ArgNum = 5;
-    break;
-  case X86::BI__builtin_ia32_vcvtsd2si64:
-  case X86::BI__builtin_ia32_vcvtsd2si32:
-  case X86::BI__builtin_ia32_vcvtsd2usi32:
-  case X86::BI__builtin_ia32_vcvtsd2usi64:
-  case X86::BI__builtin_ia32_vcvtss2si32:
-  case X86::BI__builtin_ia32_vcvtss2si64:
-  case X86::BI__builtin_ia32_vcvtss2usi32:
-  case X86::BI__builtin_ia32_vcvtss2usi64:
-  case X86::BI__builtin_ia32_sqrtpd512:
-  case X86::BI__builtin_ia32_sqrtps512:
-    ArgNum = 1;
-    HasRC = true;
-    break;
-  case X86::BI__builtin_ia32_addpd512:
-  case X86::BI__builtin_ia32_addps512:
-  case X86::BI__builtin_ia32_divpd512:
-  case X86::BI__builtin_ia32_divps512:
-  case X86::BI__builtin_ia32_mulpd512:
-  case X86::BI__builtin_ia32_mulps512:
-  case X86::BI__builtin_ia32_subpd512:
-  case X86::BI__builtin_ia32_subps512:
-  case X86::BI__builtin_ia32_cvtsi2sd64:
-  case X86::BI__builtin_ia32_cvtsi2ss32:
-  case X86::BI__builtin_ia32_cvtsi2ss64:
-  case X86::BI__builtin_ia32_cvtusi2sd64:
-  case X86::BI__builtin_ia32_cvtusi2ss32:
-  case X86::BI__builtin_ia32_cvtusi2ss64:
-    ArgNum = 2;
-    HasRC = true;
-    break;
-  case X86::BI__builtin_ia32_cvtdq2ps512_mask:
-  case X86::BI__builtin_ia32_cvtudq2ps512_mask:
-  case X86::BI__builtin_ia32_cvtpd2ps512_mask:
-  case X86::BI__builtin_ia32_cvtpd2dq512_mask:
-  case X86::BI__builtin_ia32_cvtpd2qq512_mask:
-  case X86::BI__builtin_ia32_cvtpd2udq512_mask:
-  case X86::BI__builtin_ia32_cvtpd2uqq512_mask:
-  case X86::BI__builtin_ia32_cvtps2dq512_mask:
-  case X86::BI__builtin_ia32_cvtps2qq512_mask:
-  case X86::BI__builtin_ia32_cvtps2udq512_mask:
-  case X86::BI__builtin_ia32_cvtps2uqq512_mask:
-  case X86::BI__builtin_ia32_cvtqq2pd512_mask:
-  case X86::BI__builtin_ia32_cvtqq2ps512_mask:
-  case X86::BI__builtin_ia32_cvtuqq2pd512_mask:
-  case X86::BI__builtin_ia32_cvtuqq2ps512_mask:
-    ArgNum = 3;
-    HasRC = true;
-    break;
-  case X86::BI__builtin_ia32_addss_round_mask:
-  case X86::BI__builtin_ia32_addsd_round_mask:
-  case X86::BI__builtin_ia32_divss_round_mask:
-  case X86::BI__builtin_ia32_divsd_round_mask:
-  case X86::BI__builtin_ia32_mulss_round_mask:
-  case X86::BI__builtin_ia32_mulsd_round_mask:
-  case X86::BI__builtin_ia32_subss_round_mask:
-  case X86::BI__builtin_ia32_subsd_round_mask:
-  case X86::BI__builtin_ia32_scalefpd512_mask:
-  case X86::BI__builtin_ia32_scalefps512_mask:
-  case X86::BI__builtin_ia32_scalefsd_round_mask:
-  case X86::BI__builtin_ia32_scalefss_round_mask:
-  case X86::BI__builtin_ia32_cvtsd2ss_round_mask:
-  case X86::BI__builtin_ia32_sqrtsd_round_mask:
-  case X86::BI__builtin_ia32_sqrtss_round_mask:
-  case X86::BI__builtin_ia32_vfmaddsd3_mask:
-  case X86::BI__builtin_ia32_vfmaddsd3_maskz:
-  case X86::BI__builtin_ia32_vfmaddsd3_mask3:
-  case X86::BI__builtin_ia32_vfmaddss3_mask:
-  case X86::BI__builtin_ia32_vfmaddss3_maskz:
-  case X86::BI__builtin_ia32_vfmaddss3_mask3:
-  case X86::BI__builtin_ia32_vfmaddpd512_mask:
-  case X86::BI__builtin_ia32_vfmaddpd512_maskz:
-  case X86::BI__builtin_ia32_vfmaddpd512_mask3:
-  case X86::BI__builtin_ia32_vfmsubpd512_mask3:
-  case X86::BI__builtin_ia32_vfmaddps512_mask:
-  case X86::BI__builtin_ia32_vfmaddps512_maskz:
-  case X86::BI__builtin_ia32_vfmaddps512_mask3:
-  case X86::BI__builtin_ia32_vfmsubps512_mask3:
-  case X86::BI__builtin_ia32_vfmaddsubpd512_mask:
-  case X86::BI__builtin_ia32_vfmaddsubpd512_maskz:
-  case X86::BI__builtin_ia32_vfmaddsubpd512_mask3:
-  case X86::BI__builtin_ia32_vfmsubaddpd512_mask3:
-  case X86::BI__builtin_ia32_vfmaddsubps512_mask:
-  case X86::BI__builtin_ia32_vfmaddsubps512_maskz:
-  case X86::BI__builtin_ia32_vfmaddsubps512_mask3:
-  case X86::BI__builtin_ia32_vfmsubaddps512_mask3:
-    ArgNum = 4;
-    HasRC = true;
-    break;
-  }
-
-  llvm::APSInt Result;
-
-  // We can't check the value of a dependent argument.
-  Expr *Arg = TheCall->getArg(ArgNum);
-  if (Arg->isTypeDependent() || Arg->isValueDependent())
-    return false;
-
-  // Check constant-ness first.
-  if (SemaBuiltinConstantArg(TheCall, ArgNum, Result))
-    return true;
-
-  // Make sure rounding mode is either ROUND_CUR_DIRECTION or ROUND_NO_EXC bit
-  // is set. If the intrinsic has rounding control(bits 1:0), make sure its only
-  // combined with ROUND_NO_EXC.
-  if (Result == 4/*ROUND_CUR_DIRECTION*/ ||
-      Result == 8/*ROUND_NO_EXC*/ ||
-      (HasRC && Result.getZExtValue() >= 8 && Result.getZExtValue() <= 11))
-    return false;
-
-  return Diag(TheCall->getBeginLoc(), diag::err_x86_builtin_invalid_rounding)
-         << Arg->getSourceRange();
-}
-
-// Check if the gather/scatter scale is legal.
-bool Sema::CheckX86BuiltinGatherScatterScale(unsigned BuiltinID,
-                                             CallExpr *TheCall) {
-  unsigned ArgNum = 0;
-  switch (BuiltinID) {
-  default:
-    return false;
-  case X86::BI__builtin_ia32_gatherpfdpd:
-  case X86::BI__builtin_ia32_gatherpfdps:
-  case X86::BI__builtin_ia32_gatherpfqpd:
-  case X86::BI__builtin_ia32_gatherpfqps:
-  case X86::BI__builtin_ia32_scatterpfdpd:
-  case X86::BI__builtin_ia32_scatterpfdps:
-  case X86::BI__builtin_ia32_scatterpfqpd:
-  case X86::BI__builtin_ia32_scatterpfqps:
-    ArgNum = 3;
-    break;
-  case X86::BI__builtin_ia32_gatherd_pd:
-  case X86::BI__builtin_ia32_gatherd_pd256:
-  case X86::BI__builtin_ia32_gatherq_pd:
-  case X86::BI__builtin_ia32_gatherq_pd256:
-  case X86::BI__builtin_ia32_gatherd_ps:
-  case X86::BI__builtin_ia32_gatherd_ps256:
-  case X86::BI__builtin_ia32_gatherq_ps:
-  case X86::BI__builtin_ia32_gatherq_ps256:
-  case X86::BI__builtin_ia32_gatherd_q:
-  case X86::BI__builtin_ia32_gatherd_q256:
-  case X86::BI__builtin_ia32_gatherq_q:
-  case X86::BI__builtin_ia32_gatherq_q256:
-  case X86::BI__builtin_ia32_gatherd_d:
-  case X86::BI__builtin_ia32_gatherd_d256:
-  case X86::BI__builtin_ia32_gatherq_d:
-  case X86::BI__builtin_ia32_gatherq_d256:
-  case X86::BI__builtin_ia32_gather3div2df:
-  case X86::BI__builtin_ia32_gather3div2di:
-  case X86::BI__builtin_ia32_gather3div4df:
-  case X86::BI__builtin_ia32_gather3div4di:
-  case X86::BI__builtin_ia32_gather3div4sf:
-  case X86::BI__builtin_ia32_gather3div4si:
-  case X86::BI__builtin_ia32_gather3div8sf:
-  case X86::BI__builtin_ia32_gather3div8si:
-  case X86::BI__builtin_ia32_gather3siv2df:
-  case X86::BI__builtin_ia32_gather3siv2di:
-  case X86::BI__builtin_ia32_gather3siv4df:
-  case X86::BI__builtin_ia32_gather3siv4di:
-  case X86::BI__builtin_ia32_gather3siv4sf:
-  case X86::BI__builtin_ia32_gather3siv4si:
-  case X86::BI__builtin_ia32_gather3siv8sf:
-  case X86::BI__builtin_ia32_gather3siv8si:
-  case X86::BI__builtin_ia32_gathersiv8df:
-  case X86::BI__builtin_ia32_gathersiv16sf:
-  case X86::BI__builtin_ia32_gatherdiv8df:
-  case X86::BI__builtin_ia32_gatherdiv16sf:
-  case X86::BI__builtin_ia32_gathersiv8di:
-  case X86::BI__builtin_ia32_gathersiv16si:
-  case X86::BI__builtin_ia32_gatherdiv8di:
-  case X86::BI__builtin_ia32_gatherdiv16si:
-  case X86::BI__builtin_ia32_scatterdiv2df:
-  case X86::BI__builtin_ia32_scatterdiv2di:
-  case X86::BI__builtin_ia32_scatterdiv4df:
-  case X86::BI__builtin_ia32_scatterdiv4di:
-  case X86::BI__builtin_ia32_scatterdiv4sf:
-  case X86::BI__builtin_ia32_scatterdiv4si:
-  case X86::BI__builtin_ia32_scatterdiv8sf:
-  case X86::BI__builtin_ia32_scatterdiv8si:
-  case X86::BI__builtin_ia32_scattersiv2df:
-  case X86::BI__builtin_ia32_scattersiv2di:
-  case X86::BI__builtin_ia32_scattersiv4df:
-  case X86::BI__builtin_ia32_scattersiv4di:
-  case X86::BI__builtin_ia32_scattersiv4sf:
-  case X86::BI__builtin_ia32_scattersiv4si:
-  case X86::BI__builtin_ia32_scattersiv8sf:
-  case X86::BI__builtin_ia32_scattersiv8si:
-  case X86::BI__builtin_ia32_scattersiv8df:
-  case X86::BI__builtin_ia32_scattersiv16sf:
-  case X86::BI__builtin_ia32_scatterdiv8df:
-  case X86::BI__builtin_ia32_scatterdiv16sf:
-  case X86::BI__builtin_ia32_scattersiv8di:
-  case X86::BI__builtin_ia32_scattersiv16si:
-  case X86::BI__builtin_ia32_scatterdiv8di:
-  case X86::BI__builtin_ia32_scatterdiv16si:
-    ArgNum = 4;
-    break;
-  }
-
-  llvm::APSInt Result;
-
-  // We can't check the value of a dependent argument.
-  Expr *Arg = TheCall->getArg(ArgNum);
-  if (Arg->isTypeDependent() || Arg->isValueDependent())
-    return false;
-
-  // Check constant-ness first.
-  if (SemaBuiltinConstantArg(TheCall, ArgNum, Result))
-    return true;
-
-  if (Result == 1 || Result == 2 || Result == 4 || Result == 8)
-    return false;
-
-  return Diag(TheCall->getBeginLoc(), diag::err_x86_builtin_invalid_scale)
-         << Arg->getSourceRange();
-}
-
-static bool isX86_32Builtin(unsigned BuiltinID) {
-  // These builtins only work on x86-32 targets.
-  switch (BuiltinID) {
-  case X86::BI__builtin_ia32_readeflags_u32:
-  case X86::BI__builtin_ia32_writeeflags_u32:
-    return true;
-  }
-
-  return false;
-}
-
-bool Sema::CheckX86BuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
-  if (BuiltinID == X86::BI__builtin_cpu_supports)
-    return SemaBuiltinCpuSupports(*this, TheCall);
-
-  if (BuiltinID == X86::BI__builtin_cpu_is)
-    return SemaBuiltinCpuIs(*this, TheCall);
-
-  // Check for 32-bit only builtins on a 64-bit target.
-  const llvm::Triple &TT = Context.getTargetInfo().getTriple();
-  if (TT.getArch() != llvm::Triple::x86 && isX86_32Builtin(BuiltinID))
-    return Diag(TheCall->getCallee()->getBeginLoc(),
-                diag::err_32_bit_builtin_64_bit_tgt);
-
-  // If the intrinsic has rounding or SAE make sure its valid.
-  if (CheckX86BuiltinRoundingOrSAE(BuiltinID, TheCall))
-    return true;
-
-  // If the intrinsic has a gather/scatter scale immediate make sure its valid.
-  if (CheckX86BuiltinGatherScatterScale(BuiltinID, TheCall))
-    return true;
-
-  // For intrinsics which take an immediate value as part of the instruction,
-  // range check them here.
-  int i = 0, l = 0, u = 0;
-  switch (BuiltinID) {
-  default:
-    return false;
-  case X86::BI__builtin_ia32_vec_ext_v2si:
-  case X86::BI__builtin_ia32_vec_ext_v2di:
-  case X86::BI__builtin_ia32_vextractf128_pd256:
-  case X86::BI__builtin_ia32_vextractf128_ps256:
-  case X86::BI__builtin_ia32_vextractf128_si256:
-  case X86::BI__builtin_ia32_extract128i256:
-  case X86::BI__builtin_ia32_extractf64x4_mask:
-  case X86::BI__builtin_ia32_extracti64x4_mask:
-  case X86::BI__builtin_ia32_extractf32x8_mask:
-  case X86::BI__builtin_ia32_extracti32x8_mask:
-  case X86::BI__builtin_ia32_extractf64x2_256_mask:
-  case X86::BI__builtin_ia32_extracti64x2_256_mask:
-  case X86::BI__builtin_ia32_extractf32x4_256_mask:
-  case X86::BI__builtin_ia32_extracti32x4_256_mask:
-    i = 1; l = 0; u = 1;
-    break;
-  case X86::BI__builtin_ia32_vec_set_v2di:
-  case X86::BI__builtin_ia32_vinsertf128_pd256:
-  case X86::BI__builtin_ia32_vinsertf128_ps256:
-  case X86::BI__builtin_ia32_vinsertf128_si256:
-  case X86::BI__builtin_ia32_insert128i256:
-  case X86::BI__builtin_ia32_insertf32x8:
-  case X86::BI__builtin_ia32_inserti32x8:
-  case X86::BI__builtin_ia32_insertf64x4:
-  case X86::BI__builtin_ia32_inserti64x4:
-  case X86::BI__builtin_ia32_insertf64x2_256:
-  case X86::BI__builtin_ia32_inserti64x2_256:
-  case X86::BI__builtin_ia32_insertf32x4_256:
-  case X86::BI__builtin_ia32_inserti32x4_256:
-    i = 2; l = 0; u = 1;
-    break;
-  case X86::BI__builtin_ia32_vpermilpd:
-  case X86::BI__builtin_ia32_vec_ext_v4hi:
-  case X86::BI__builtin_ia32_vec_ext_v4si:
-  case X86::BI__builtin_ia32_vec_ext_v4sf:
-  case X86::BI__builtin_ia32_vec_ext_v4di:
-  case X86::BI__builtin_ia32_extractf32x4_mask:
-  case X86::BI__builtin_ia32_extracti32x4_mask:
-  case X86::BI__builtin_ia32_extractf64x2_512_mask:
-  case X86::BI__builtin_ia32_extracti64x2_512_mask:
-    i = 1; l = 0; u = 3;
-    break;
-  case X86::BI_mm_prefetch:
-  case X86::BI__builtin_ia32_vec_ext_v8hi:
-  case X86::BI__builtin_ia32_vec_ext_v8si:
-    i = 1; l = 0; u = 7;
-    break;
-  case X86::BI__builtin_ia32_sha1rnds4:
-  case X86::BI__builtin_ia32_blendpd:
-  case X86::BI__builtin_ia32_shufpd:
-  case X86::BI__builtin_ia32_vec_set_v4hi:
-  case X86::BI__builtin_ia32_vec_set_v4si:
-  case X86::BI__builtin_ia32_vec_set_v4di:
-  case X86::BI__builtin_ia32_shuf_f32x4_256:
-  case X86::BI__builtin_ia32_shuf_f64x2_256:
-  case X86::BI__builtin_ia32_shuf_i32x4_256:
-  case X86::BI__builtin_ia32_shuf_i64x2_256:
-  case X86::BI__builtin_ia32_insertf64x2_512:
-  case X86::BI__builtin_ia32_inserti64x2_512:
-  case X86::BI__builtin_ia32_insertf32x4:
-  case X86::BI__builtin_ia32_inserti32x4:
-    i = 2; l = 0; u = 3;
-    break;
-  case X86::BI__builtin_ia32_vpermil2pd:
-  case X86::BI__builtin_ia32_vpermil2pd256:
-  case X86::BI__builtin_ia32_vpermil2ps:
-  case X86::BI__builtin_ia32_vpermil2ps256:
-    i = 3; l = 0; u = 3;
-    break;
-  case X86::BI__builtin_ia32_cmpb128_mask:
-  case X86::BI__builtin_ia32_cmpw128_mask:
-  case X86::BI__builtin_ia32_cmpd128_mask:
-  case X86::BI__builtin_ia32_cmpq128_mask:
-  case X86::BI__builtin_ia32_cmpb256_mask:
-  case X86::BI__builtin_ia32_cmpw256_mask:
-  case X86::BI__builtin_ia32_cmpd256_mask:
-  case X86::BI__builtin_ia32_cmpq256_mask:
-  case X86::BI__builtin_ia32_cmpb512_mask:
-  case X86::BI__builtin_ia32_cmpw512_mask:
-  case X86::BI__builtin_ia32_cmpd512_mask:
-  case X86::BI__builtin_ia32_cmpq512_mask:
-  case X86::BI__builtin_ia32_ucmpb128_mask:
-  case X86::BI__builtin_ia32_ucmpw128_mask:
-  case X86::BI__builtin_ia32_ucmpd128_mask:
-  case X86::BI__builtin_ia32_ucmpq128_mask:
-  case X86::BI__builtin_ia32_ucmpb256_mask:
-  case X86::BI__builtin_ia32_ucmpw256_mask:
-  case X86::BI__builtin_ia32_ucmpd256_mask:
-  case X86::BI__builtin_ia32_ucmpq256_mask:
-  case X86::BI__builtin_ia32_ucmpb512_mask:
-  case X86::BI__builtin_ia32_ucmpw512_mask:
-  case X86::BI__builtin_ia32_ucmpd512_mask:
-  case X86::BI__builtin_ia32_ucmpq512_mask:
-  case X86::BI__builtin_ia32_vpcomub:
-  case X86::BI__builtin_ia32_vpcomuw:
-  case X86::BI__builtin_ia32_vpcomud:
-  case X86::BI__builtin_ia32_vpcomuq:
-  case X86::BI__builtin_ia32_vpcomb:
-  case X86::BI__builtin_ia32_vpcomw:
-  case X86::BI__builtin_ia32_vpcomd:
-  case X86::BI__builtin_ia32_vpcomq:
-  case X86::BI__builtin_ia32_vec_set_v8hi:
-  case X86::BI__builtin_ia32_vec_set_v8si:
-    i = 2; l = 0; u = 7;
-    break;
-  case X86::BI__builtin_ia32_vpermilpd256:
-  case X86::BI__builtin_ia32_roundps:
-  case X86::BI__builtin_ia32_roundpd:
-  case X86::BI__builtin_ia32_roundps256:
-  case X86::BI__builtin_ia32_roundpd256:
-  case X86::BI__builtin_ia32_getmantpd128_mask:
-  case X86::BI__builtin_ia32_getmantpd256_mask:
-  case X86::BI__builtin_ia32_getmantps128_mask:
-  case X86::BI__builtin_ia32_getmantps256_mask:
-  case X86::BI__builtin_ia32_getmantpd512_mask:
-  case X86::BI__builtin_ia32_getmantps512_mask:
-  case X86::BI__builtin_ia32_vec_ext_v16qi:
-  case X86::BI__builtin_ia32_vec_ext_v16hi:
-    i = 1; l = 0; u = 15;
-    break;
-  case X86::BI__builtin_ia32_pblendd128:
-  case X86::BI__builtin_ia32_blendps:
-  case X86::BI__builtin_ia32_blendpd256:
-  case X86::BI__builtin_ia32_shufpd256:
-  case X86::BI__builtin_ia32_roundss:
-  case X86::BI__builtin_ia32_roundsd:
-  case X86::BI__builtin_ia32_rangepd128_mask:
-  case X86::BI__builtin_ia32_rangepd256_mask:
-  case X86::BI__builtin_ia32_rangepd512_mask:
-  case X86::BI__builtin_ia32_rangeps128_mask:
-  case X86::BI__builtin_ia32_rangeps256_mask:
-  case X86::BI__builtin_ia32_rangeps512_mask:
-  case X86::BI__builtin_ia32_getmantsd_round_mask:
-  case X86::BI__builtin_ia32_getmantss_round_mask:
-  case X86::BI__builtin_ia32_vec_set_v16qi:
-  case X86::BI__builtin_ia32_vec_set_v16hi:
-    i = 2; l = 0; u = 15;
-    break;
-  case X86::BI__builtin_ia32_vec_ext_v32qi:
-    i = 1; l = 0; u = 31;
-    break;
-  case X86::BI__builtin_ia32_cmpps:
-  case X86::BI__builtin_ia32_cmpss:
-  case X86::BI__builtin_ia32_cmppd:
-  case X86::BI__builtin_ia32_cmpsd:
-  case X86::BI__builtin_ia32_cmpps256:
-  case X86::BI__builtin_ia32_cmppd256:
-  case X86::BI__builtin_ia32_cmpps128_mask:
-  case X86::BI__builtin_ia32_cmppd128_mask:
-  case X86::BI__builtin_ia32_cmpps256_mask:
-  case X86::BI__builtin_ia32_cmppd256_mask:
-  case X86::BI__builtin_ia32_cmpps512_mask:
-  case X86::BI__builtin_ia32_cmppd512_mask:
-  case X86::BI__builtin_ia32_cmpsd_mask:
-  case X86::BI__builtin_ia32_cmpss_mask:
-  case X86::BI__builtin_ia32_vec_set_v32qi:
-    i = 2; l = 0; u = 31;
-    break;
-  case X86::BI__builtin_ia32_permdf256:
-  case X86::BI__builtin_ia32_permdi256:
-  case X86::BI__builtin_ia32_permdf512:
-  case X86::BI__builtin_ia32_permdi512:
-  case X86::BI__builtin_ia32_vpermilps:
-  case X86::BI__builtin_ia32_vpermilps256:
-  case X86::BI__builtin_ia32_vpermilpd512:
-  case X86::BI__builtin_ia32_vpermilps512:
-  case X86::BI__builtin_ia32_pshufd:
-  case X86::BI__builtin_ia32_pshufd256:
-  case X86::BI__builtin_ia32_pshufd512:
-  case X86::BI__builtin_ia32_pshufhw:
-  case X86::BI__builtin_ia32_pshufhw256:
-  case X86::BI__builtin_ia32_pshufhw512:
-  case X86::BI__builtin_ia32_pshuflw:
-  case X86::BI__builtin_ia32_pshuflw256:
-  case X86::BI__builtin_ia32_pshuflw512:
-  case X86::BI__builtin_ia32_vcvtps2ph:
-  case X86::BI__builtin_ia32_vcvtps2ph_mask:
-  case X86::BI__builtin_ia32_vcvtps2ph256:
-  case X86::BI__builtin_ia32_vcvtps2ph256_mask:
-  case X86::BI__builtin_ia32_vcvtps2ph512_mask:
-  case X86::BI__builtin_ia32_rndscaleps_128_mask:
-  case X86::BI__builtin_ia32_rndscalepd_128_mask:
-  case X86::BI__builtin_ia32_rndscaleps_256_mask:
-  case X86::BI__builtin_ia32_rndscalepd_256_mask:
-  case X86::BI__builtin_ia32_rndscaleps_mask:
-  case X86::BI__builtin_ia32_rndscalepd_mask:
-  case X86::BI__builtin_ia32_reducepd128_mask:
-  case X86::BI__builtin_ia32_reducepd256_mask:
-  case X86::BI__builtin_ia32_reducepd512_mask:
-  case X86::BI__builtin_ia32_reduceps128_mask:
-  case X86::BI__builtin_ia32_reduceps256_mask:
-  case X86::BI__builtin_ia32_reduceps512_mask:
-  case X86::BI__builtin_ia32_prold512:
-  case X86::BI__builtin_ia32_prolq512:
-  case X86::BI__builtin_ia32_prold128:
-  case X86::BI__builtin_ia32_prold256:
-  case X86::BI__builtin_ia32_prolq128:
-  case X86::BI__builtin_ia32_prolq256:
-  case X86::BI__builtin_ia32_prord512:
-  case X86::BI__builtin_ia32_prorq512:
-  case X86::BI__builtin_ia32_prord128:
-  case X86::BI__builtin_ia32_prord256:
-  case X86::BI__builtin_ia32_prorq128:
-  case X86::BI__builtin_ia32_prorq256:
-  case X86::BI__builtin_ia32_fpclasspd128_mask:
-  case X86::BI__builtin_ia32_fpclasspd256_mask:
-  case X86::BI__builtin_ia32_fpclassps128_mask:
-  case X86::BI__builtin_ia32_fpclassps256_mask:
-  case X86::BI__builtin_ia32_fpclassps512_mask:
-  case X86::BI__builtin_ia32_fpclasspd512_mask:
-  case X86::BI__builtin_ia32_fpclasssd_mask:
-  case X86::BI__builtin_ia32_fpclassss_mask:
-  case X86::BI__builtin_ia32_pslldqi128_byteshift:
-  case X86::BI__builtin_ia32_pslldqi256_byteshift:
-  case X86::BI__builtin_ia32_pslldqi512_byteshift:
-  case X86::BI__builtin_ia32_psrldqi128_byteshift:
-  case X86::BI__builtin_ia32_psrldqi256_byteshift:
-  case X86::BI__builtin_ia32_psrldqi512_byteshift:
-  case X86::BI__builtin_ia32_kshiftliqi:
-  case X86::BI__builtin_ia32_kshiftlihi:
-  case X86::BI__builtin_ia32_kshiftlisi:
-  case X86::BI__builtin_ia32_kshiftlidi:
-  case X86::BI__builtin_ia32_kshiftriqi:
-  case X86::BI__builtin_ia32_kshiftrihi:
-  case X86::BI__builtin_ia32_kshiftrisi:
-  case X86::BI__builtin_ia32_kshiftridi:
-    i = 1; l = 0; u = 255;
-    break;
-  case X86::BI__builtin_ia32_vperm2f128_pd256:
-  case X86::BI__builtin_ia32_vperm2f128_ps256:
-  case X86::BI__builtin_ia32_vperm2f128_si256:
-  case X86::BI__builtin_ia32_permti256:
-  case X86::BI__builtin_ia32_pblendw128:
-  case X86::BI__builtin_ia32_pblendw256:
-  case X86::BI__builtin_ia32_blendps256:
-  case X86::BI__builtin_ia32_pblendd256:
-  case X86::BI__builtin_ia32_palignr128:
-  case X86::BI__builtin_ia32_palignr256:
-  case X86::BI__builtin_ia32_palignr512:
-  case X86::BI__builtin_ia32_alignq512:
-  case X86::BI__builtin_ia32_alignd512:
-  case X86::BI__builtin_ia32_alignd128:
-  case X86::BI__builtin_ia32_alignd256:
-  case X86::BI__builtin_ia32_alignq128:
-  case X86::BI__builtin_ia32_alignq256:
-  case X86::BI__builtin_ia32_vcomisd:
-  case X86::BI__builtin_ia32_vcomiss:
-  case X86::BI__builtin_ia32_shuf_f32x4:
-  case X86::BI__builtin_ia32_shuf_f64x2:
-  case X86::BI__builtin_ia32_shuf_i32x4:
-  case X86::BI__builtin_ia32_shuf_i64x2:
-  case X86::BI__builtin_ia32_shufpd512:
-  case X86::BI__builtin_ia32_shufps:
-  case X86::BI__builtin_ia32_shufps256:
-  case X86::BI__builtin_ia32_shufps512:
-  case X86::BI__builtin_ia32_dbpsadbw128:
-  case X86::BI__builtin_ia32_dbpsadbw256:
-  case X86::BI__builtin_ia32_dbpsadbw512:
-  case X86::BI__builtin_ia32_vpshldd128:
-  case X86::BI__builtin_ia32_vpshldd256:
-  case X86::BI__builtin_ia32_vpshldd512:
-  case X86::BI__builtin_ia32_vpshldq128:
-  case X86::BI__builtin_ia32_vpshldq256:
-  case X86::BI__builtin_ia32_vpshldq512:
-  case X86::BI__builtin_ia32_vpshldw128:
-  case X86::BI__builtin_ia32_vpshldw256:
-  case X86::BI__builtin_ia32_vpshldw512:
-  case X86::BI__builtin_ia32_vpshrdd128:
-  case X86::BI__builtin_ia32_vpshrdd256:
-  case X86::BI__builtin_ia32_vpshrdd512:
-  case X86::BI__builtin_ia32_vpshrdq128:
-  case X86::BI__builtin_ia32_vpshrdq256:
-  case X86::BI__builtin_ia32_vpshrdq512:
-  case X86::BI__builtin_ia32_vpshrdw128:
-  case X86::BI__builtin_ia32_vpshrdw256:
-  case X86::BI__builtin_ia32_vpshrdw512:
-    i = 2; l = 0; u = 255;
-    break;
-  case X86::BI__builtin_ia32_fixupimmpd512_mask:
-  case X86::BI__builtin_ia32_fixupimmpd512_maskz:
-  case X86::BI__builtin_ia32_fixupimmps512_mask:
-  case X86::BI__builtin_ia32_fixupimmps512_maskz:
-  case X86::BI__builtin_ia32_fixupimmsd_mask:
-  case X86::BI__builtin_ia32_fixupimmsd_maskz:
-  case X86::BI__builtin_ia32_fixupimmss_mask:
-  case X86::BI__builtin_ia32_fixupimmss_maskz:
-  case X86::BI__builtin_ia32_fixupimmpd128_mask:
-  case X86::BI__builtin_ia32_fixupimmpd128_maskz:
-  case X86::BI__builtin_ia32_fixupimmpd256_mask:
-  case X86::BI__builtin_ia32_fixupimmpd256_maskz:
-  case X86::BI__builtin_ia32_fixupimmps128_mask:
-  case X86::BI__builtin_ia32_fixupimmps128_maskz:
-  case X86::BI__builtin_ia32_fixupimmps256_mask:
-  case X86::BI__builtin_ia32_fixupimmps256_maskz:
-  case X86::BI__builtin_ia32_pternlogd512_mask:
-  case X86::BI__builtin_ia32_pternlogd512_maskz:
-  case X86::BI__builtin_ia32_pternlogq512_mask:
-  case X86::BI__builtin_ia32_pternlogq512_maskz:
-  case X86::BI__builtin_ia32_pternlogd128_mask:
-  case X86::BI__builtin_ia32_pternlogd128_maskz:
-  case X86::BI__builtin_ia32_pternlogd256_mask:
-  case X86::BI__builtin_ia32_pternlogd256_maskz:
-  case X86::BI__builtin_ia32_pternlogq128_mask:
-  case X86::BI__builtin_ia32_pternlogq128_maskz:
-  case X86::BI__builtin_ia32_pternlogq256_mask:
-  case X86::BI__builtin_ia32_pternlogq256_maskz:
-    i = 3; l = 0; u = 255;
-    break;
-  case X86::BI__builtin_ia32_gatherpfdpd:
-  case X86::BI__builtin_ia32_gatherpfdps:
-  case X86::BI__builtin_ia32_gatherpfqpd:
-  case X86::BI__builtin_ia32_gatherpfqps:
-  case X86::BI__builtin_ia32_scatterpfdpd:
-  case X86::BI__builtin_ia32_scatterpfdps:
-  case X86::BI__builtin_ia32_scatterpfqpd:
-  case X86::BI__builtin_ia32_scatterpfqps:
-    i = 4; l = 2; u = 3;
-    break;
-  case X86::BI__builtin_ia32_reducesd_mask:
-  case X86::BI__builtin_ia32_reducess_mask:
-  case X86::BI__builtin_ia32_rndscalesd_round_mask:
-  case X86::BI__builtin_ia32_rndscaless_round_mask:
-    i = 4; l = 0; u = 255;
-    break;
-  }
-
-  // Note that we don't force a hard error on the range check here, allowing
-  // template-generated or macro-generated dead code to potentially have out-of-
-  // range values. These need to code generate, but don't need to necessarily
-  // make any sense. We use a warning that defaults to an error.
-  return SemaBuiltinConstantArgRange(TheCall, i, l, u, /*RangeIsError*/ false);
-}
-
-/// Given a FunctionDecl's FormatAttr, attempts to populate the FomatStringInfo
-/// parameter with the FormatAttr's correct format_idx and firstDataArg.
-/// Returns true when the format fits the function and the FormatStringInfo has
-/// been populated.
-bool Sema::getFormatStringInfo(const FormatAttr *Format, bool IsCXXMember,
-                               FormatStringInfo *FSI) {
-  FSI->HasVAListArg = Format->getFirstArg() == 0;
-  FSI->FormatIdx = Format->getFormatIdx() - 1;
-  FSI->FirstDataArg = FSI->HasVAListArg ? 0 : Format->getFirstArg() - 1;
-
-  // The way the format attribute works in GCC, the implicit this argument
-  // of member functions is counted. However, it doesn't appear in our own
-  // lists, so decrement format_idx in that case.
-  if (IsCXXMember) {
-    if(FSI->FormatIdx == 0)
-      return false;
-    --FSI->FormatIdx;
-    if (FSI->FirstDataArg != 0)
-      --FSI->FirstDataArg;
-  }
-  return true;
-}
-
-/// Checks if a the given expression evaluates to null.
-///
-/// Returns true if the value evaluates to null.
-static bool CheckNonNullExpr(Sema &S, const Expr *Expr) {
-  // If the expression has non-null type, it doesn't evaluate to null.
-  if (auto nullability
-        = Expr->IgnoreImplicit()->getType()->getNullability(S.Context)) {
-    if (*nullability == NullabilityKind::NonNull)
-      return false;
-  }
-
-  // As a special case, transparent unions initialized with zero are
-  // considered null for the purposes of the nonnull attribute.
-  if (const RecordType *UT = Expr->getType()->getAsUnionType()) {
-    if (UT->getDecl()->hasAttr<TransparentUnionAttr>())
-      if (const CompoundLiteralExpr *CLE =
-          dyn_cast<CompoundLiteralExpr>(Expr))
-        if (const InitListExpr *ILE =
-            dyn_cast<InitListExpr>(CLE->getInitializer()))
-          Expr = ILE->getInit(0);
-  }
-
-  bool Result;
-  return (!Expr->isValueDependent() &&
-          Expr->EvaluateAsBooleanCondition(Result, S.Context) &&
-          !Result);
-}
-
-static void CheckNonNullArgument(Sema &S,
-                                 const Expr *ArgExpr,
-                                 SourceLocation CallSiteLoc) {
-  if (CheckNonNullExpr(S, ArgExpr))
-    S.DiagRuntimeBehavior(CallSiteLoc, ArgExpr,
-                          S.PDiag(diag::warn_null_arg)
-                              << ArgExpr->getSourceRange());
-}
-
-bool Sema::GetFormatNSStringIdx(const FormatAttr *Format, unsigned &Idx) {
-  FormatStringInfo FSI;
-  if ((GetFormatStringType(Format) == FST_NSString) &&
-      getFormatStringInfo(Format, false, &FSI)) {
-    Idx = FSI.FormatIdx;
-    return true;
-  }
-  return false;
-}
-
-/// Diagnose use of %s directive in an NSString which is being passed
-/// as formatting string to formatting method.
-static void
-DiagnoseCStringFormatDirectiveInCFAPI(Sema &S,
-                                        const NamedDecl *FDecl,
-                                        Expr **Args,
-                                        unsigned NumArgs) {
-  unsigned Idx = 0;
-  bool Format = false;
-  ObjCStringFormatFamily SFFamily = FDecl->getObjCFStringFormattingFamily();
-  if (SFFamily == ObjCStringFormatFamily::SFF_CFString) {
-    Idx = 2;
-    Format = true;
-  }
-  else
-    for (const auto *I : FDecl->specific_attrs<FormatAttr>()) {
-      if (S.GetFormatNSStringIdx(I, Idx)) {
-        Format = true;
-        break;
-      }
-    }
-  if (!Format || NumArgs <= Idx)
-    return;
-  const Expr *FormatExpr = Args[Idx];
-  if (const CStyleCastExpr *CSCE = dyn_cast<CStyleCastExpr>(FormatExpr))
-    FormatExpr = CSCE->getSubExpr();
-  const StringLiteral *FormatString;
-  if (const ObjCStringLiteral *OSL =
-      dyn_cast<ObjCStringLiteral>(FormatExpr->IgnoreParenImpCasts()))
-    FormatString = OSL->getString();
-  else
-    FormatString = dyn_cast<StringLiteral>(FormatExpr->IgnoreParenImpCasts());
-  if (!FormatString)
-    return;
-  if (S.FormatStringHasSArg(FormatString)) {
-    S.Diag(FormatExpr->getExprLoc(), diag::warn_objc_cdirective_format_string)
-      << "%s" << 1 << 1;
-    S.Diag(FDecl->getLocation(), diag::note_entity_declared_at)
-      << FDecl->getDeclName();
-  }
-}
-
-/// Determine whether the given type has a non-null nullability annotation.
-static bool isNonNullType(ASTContext &ctx, QualType type) {
-  if (auto nullability = type->getNullability(ctx))
-    return *nullability == NullabilityKind::NonNull;
-
-  return false;
-}
-
-static void CheckNonNullArguments(Sema &S,
-                                  const NamedDecl *FDecl,
-                                  const FunctionProtoType *Proto,
-                                  ArrayRef<const Expr *> Args,
-                                  SourceLocation CallSiteLoc) {
-  assert((FDecl || Proto) && "Need a function declaration or prototype");
-
-  // Already checked by by constant evaluator.
-  if (S.isConstantEvaluated())
-    return;
-  // Check the attributes attached to the method/function itself.
-  llvm::SmallBitVector NonNullArgs;
-  if (FDecl) {
-    // Handle the nonnull attribute on the function/method declaration itself.
-    for (const auto *NonNull : FDecl->specific_attrs<NonNullAttr>()) {
-      if (!NonNull->args_size()) {
-        // Easy case: all pointer arguments are nonnull.
-        for (const auto *Arg : Args)
-          if (S.isValidPointerAttrType(Arg->getType()))
-            CheckNonNullArgument(S, Arg, CallSiteLoc);
-        return;
-      }
-
-      for (const ParamIdx &Idx : NonNull->args()) {
-        unsigned IdxAST = Idx.getASTIndex();
-        if (IdxAST >= Args.size())
-          continue;
-        if (NonNullArgs.empty())
-          NonNullArgs.resize(Args.size());
-        NonNullArgs.set(IdxAST);
-      }
-    }
-  }
-
-  if (FDecl && (isa<FunctionDecl>(FDecl) || isa<ObjCMethodDecl>(FDecl))) {
-    // Handle the nonnull attribute on the parameters of the
-    // function/method.
-    ArrayRef<ParmVarDecl*> parms;
-    if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(FDecl))
-      parms = FD->parameters();
-    else
-      parms = cast<ObjCMethodDecl>(FDecl)->parameters();
-
-    unsigned ParamIndex = 0;
-    for (ArrayRef<ParmVarDecl*>::iterator I = parms.begin(), E = parms.end();
-         I != E; ++I, ++ParamIndex) {
-      const ParmVarDecl *PVD = *I;
-      if (PVD->hasAttr<NonNullAttr>() ||
-          isNonNullType(S.Context, PVD->getType())) {
-        if (NonNullArgs.empty())
-          NonNullArgs.resize(Args.size());
-
-        NonNullArgs.set(ParamIndex);
-      }
-    }
-  } else {
-    // If we have a non-function, non-method declaration but no
-    // function prototype, try to dig out the function prototype.
-    if (!Proto) {
-      if (const ValueDecl *VD = dyn_cast<ValueDecl>(FDecl)) {
-        QualType type = VD->getType().getNonReferenceType();
-        if (auto pointerType = type->getAs<PointerType>())
-          type = pointerType->getPointeeType();
-        else if (auto blockType = type->getAs<BlockPointerType>())
-          type = blockType->getPointeeType();
-        // FIXME: data member pointers?
-
-        // Dig out the function prototype, if there is one.
-        Proto = type->getAs<FunctionProtoType>();
-      }
-    }
-
-    // Fill in non-null argument information from the nullability
-    // information on the parameter types (if we have them).
-    if (Proto) {
-      unsigned Index = 0;
-      for (auto paramType : Proto->getParamTypes()) {
-        if (isNonNullType(S.Context, paramType)) {
-          if (NonNullArgs.empty())
-            NonNullArgs.resize(Args.size());
-
-          NonNullArgs.set(Index);
-        }
-
-        ++Index;
-      }
-    }
-  }
-
-  // Check for non-null arguments.
-  for (unsigned ArgIndex = 0, ArgIndexEnd = NonNullArgs.size();
-       ArgIndex != ArgIndexEnd; ++ArgIndex) {
-    if (NonNullArgs[ArgIndex])
-      CheckNonNullArgument(S, Args[ArgIndex], CallSiteLoc);
-  }
-}
-
-/// Handles the checks for format strings, non-POD arguments to vararg
-/// functions, NULL arguments passed to non-NULL parameters, and diagnose_if
-/// attributes.
-void Sema::checkCall(NamedDecl *FDecl, const FunctionProtoType *Proto,
-                     const Expr *ThisArg, ArrayRef<const Expr *> Args,
-                     bool IsMemberFunction, SourceLocation Loc,
-                     SourceRange Range, VariadicCallType CallType) {
-  // FIXME: We should check as much as we can in the template definition.
-  if (CurContext->isDependentContext())
-    return;
-
-  // Printf and scanf checking.
-  llvm::SmallBitVector CheckedVarArgs;
-  if (FDecl) {
-    for (const auto *I : FDecl->specific_attrs<FormatAttr>()) {
-      // Only create vector if there are format attributes.
-      CheckedVarArgs.resize(Args.size());
-
-      CheckFormatArguments(I, Args, IsMemberFunction, CallType, Loc, Range,
-                           CheckedVarArgs);
-    }
-  }
-
-  // Refuse POD arguments that weren't caught by the format string
-  // checks above.
-  auto *FD = dyn_cast_or_null<FunctionDecl>(FDecl);
-  if (CallType != VariadicDoesNotApply &&
-      (!FD || FD->getBuiltinID() != Builtin::BI__noop)) {
-    unsigned NumParams = Proto ? Proto->getNumParams()
-                       : FDecl && isa<FunctionDecl>(FDecl)
-                           ? cast<FunctionDecl>(FDecl)->getNumParams()
-                       : FDecl && isa<ObjCMethodDecl>(FDecl)
-                           ? cast<ObjCMethodDecl>(FDecl)->param_size()
-                       : 0;
-
-    for (unsigned ArgIdx = NumParams; ArgIdx < Args.size(); ++ArgIdx) {
-      // Args[ArgIdx] can be null in malformed code.
-      if (const Expr *Arg = Args[ArgIdx]) {
-        if (CheckedVarArgs.empty() || !CheckedVarArgs[ArgIdx])
-          checkVariadicArgument(Arg, CallType);
-      }
-    }
-  }
-
-  if (FDecl || Proto) {
-    CheckNonNullArguments(*this, FDecl, Proto, Args, Loc);
-
-    // Type safety checking.
-    if (FDecl) {
-      for (const auto *I : FDecl->specific_attrs<ArgumentWithTypeTagAttr>())
-        CheckArgumentWithTypeTag(I, Args, Loc);
-    }
-  }
-
-  if (FD)
-    diagnoseArgDependentDiagnoseIfAttrs(FD, ThisArg, Args, Loc);
-}
-
-/// CheckConstructorCall - Check a constructor call for correctness and safety
-/// properties not enforced by the C type system.
-void Sema::CheckConstructorCall(FunctionDecl *FDecl,
-                                ArrayRef<const Expr *> Args,
-                                const FunctionProtoType *Proto,
-                                SourceLocation Loc) {
-  VariadicCallType CallType =
-    Proto->isVariadic() ? VariadicConstructor : VariadicDoesNotApply;
-  checkCall(FDecl, Proto, /*ThisArg=*/nullptr, Args, /*IsMemberFunction=*/true,
-            Loc, SourceRange(), CallType);
-}
-
-/// CheckFunctionCall - Check a direct function call for various correctness
-/// and safety properties not strictly enforced by the C type system.
-bool Sema::CheckFunctionCall(FunctionDecl *FDecl, CallExpr *TheCall,
-                             const FunctionProtoType *Proto) {
-  bool IsMemberOperatorCall = isa<CXXOperatorCallExpr>(TheCall) &&
-                              isa<CXXMethodDecl>(FDecl);
-  bool IsMemberFunction = isa<CXXMemberCallExpr>(TheCall) ||
-                          IsMemberOperatorCall;
-  VariadicCallType CallType = getVariadicCallType(FDecl, Proto,
-                                                  TheCall->getCallee());
-  Expr** Args = TheCall->getArgs();
-  unsigned NumArgs = TheCall->getNumArgs();
-
-  Expr *ImplicitThis = nullptr;
-  if (IsMemberOperatorCall) {
-    // If this is a call to a member operator, hide the first argument
-    // from checkCall.
-    // FIXME: Our choice of AST representation here is less than ideal.
-    ImplicitThis = Args[0];
-    ++Args;
-    --NumArgs;
-  } else if (IsMemberFunction)
-    ImplicitThis =
-        cast<CXXMemberCallExpr>(TheCall)->getImplicitObjectArgument();
-
-  checkCall(FDecl, Proto, ImplicitThis, llvm::makeArrayRef(Args, NumArgs),
-            IsMemberFunction, TheCall->getRParenLoc(),
-            TheCall->getCallee()->getSourceRange(), CallType);
-
-  IdentifierInfo *FnInfo = FDecl->getIdentifier();
-  // None of the checks below are needed for functions that don't have
-  // simple names (e.g., C++ conversion functions).
-  if (!FnInfo)
-    return false;
-
-  CheckAbsoluteValueFunction(TheCall, FDecl);
-  CheckMaxUnsignedZero(TheCall, FDecl);
-
-  if (getLangOpts().ObjC)
-    DiagnoseCStringFormatDirectiveInCFAPI(*this, FDecl, Args, NumArgs);
-
-  unsigned CMId = FDecl->getMemoryFunctionKind();
-  if (CMId == 0)
-    return false;
-
-  // Handle memory setting and copying functions.
-  if (CMId == Builtin::BIstrlcpy || CMId == Builtin::BIstrlcat)
-    CheckStrlcpycatArguments(TheCall, FnInfo);
-  else if (CMId == Builtin::BIstrncat)
-    CheckStrncatArguments(TheCall, FnInfo);
-  else
-    CheckMemaccessArguments(TheCall, CMId, FnInfo);
-
-  return false;
-}
-
-bool Sema::CheckObjCMethodCall(ObjCMethodDecl *Method, SourceLocation lbrac,
-                               ArrayRef<const Expr *> Args) {
-  VariadicCallType CallType =
-      Method->isVariadic() ? VariadicMethod : VariadicDoesNotApply;
-
-  checkCall(Method, nullptr, /*ThisArg=*/nullptr, Args,
-            /*IsMemberFunction=*/false, lbrac, Method->getSourceRange(),
-            CallType);
-
-  return false;
-}
-
-bool Sema::CheckPointerCall(NamedDecl *NDecl, CallExpr *TheCall,
-                            const FunctionProtoType *Proto) {
-  QualType Ty;
-  if (const auto *V = dyn_cast<VarDecl>(NDecl))
-    Ty = V->getType().getNonReferenceType();
-  else if (const auto *F = dyn_cast<FieldDecl>(NDecl))
-    Ty = F->getType().getNonReferenceType();
-  else
-    return false;
-
-  if (!Ty->isBlockPointerType() && !Ty->isFunctionPointerType() &&
-      !Ty->isFunctionProtoType())
-    return false;
-
-  VariadicCallType CallType;
-  if (!Proto || !Proto->isVariadic()) {
-    CallType = VariadicDoesNotApply;
-  } else if (Ty->isBlockPointerType()) {
-    CallType = VariadicBlock;
-  } else { // Ty->isFunctionPointerType()
-    CallType = VariadicFunction;
-  }
-
-  checkCall(NDecl, Proto, /*ThisArg=*/nullptr,
-            llvm::makeArrayRef(TheCall->getArgs(), TheCall->getNumArgs()),
-            /*IsMemberFunction=*/false, TheCall->getRParenLoc(),
-            TheCall->getCallee()->getSourceRange(), CallType);
-
-  return false;
-}
-
-/// Checks function calls when a FunctionDecl or a NamedDecl is not available,
-/// such as function pointers returned from functions.
-bool Sema::CheckOtherCall(CallExpr *TheCall, const FunctionProtoType *Proto) {
-  VariadicCallType CallType = getVariadicCallType(/*FDecl=*/nullptr, Proto,
-                                                  TheCall->getCallee());
-  checkCall(/*FDecl=*/nullptr, Proto, /*ThisArg=*/nullptr,
-            llvm::makeArrayRef(TheCall->getArgs(), TheCall->getNumArgs()),
-            /*IsMemberFunction=*/false, TheCall->getRParenLoc(),
-            TheCall->getCallee()->getSourceRange(), CallType);
-
-  return false;
-}
-
-static bool isValidOrderingForOp(int64_t Ordering, AtomicExpr::AtomicOp Op) {
-  if (!llvm::isValidAtomicOrderingCABI(Ordering))
-    return false;
-
-  auto OrderingCABI = (llvm::AtomicOrderingCABI)Ordering;
-  switch (Op) {
-  case AtomicExpr::AO__c11_atomic_init:
-  case AtomicExpr::AO__opencl_atomic_init:
-    llvm_unreachable("There is no ordering argument for an init");
-
-  case AtomicExpr::AO__c11_atomic_load:
-  case AtomicExpr::AO__opencl_atomic_load:
-  case AtomicExpr::AO__atomic_load_n:
-  case AtomicExpr::AO__atomic_load:
-    return OrderingCABI != llvm::AtomicOrderingCABI::release &&
-           OrderingCABI != llvm::AtomicOrderingCABI::acq_rel;
-
-  case AtomicExpr::AO__c11_atomic_store:
-  case AtomicExpr::AO__opencl_atomic_store:
-  case AtomicExpr::AO__atomic_store:
-  case AtomicExpr::AO__atomic_store_n:
-    return OrderingCABI != llvm::AtomicOrderingCABI::consume &&
-           OrderingCABI != llvm::AtomicOrderingCABI::acquire &&
-           OrderingCABI != llvm::AtomicOrderingCABI::acq_rel;
-
-  default:
-    return true;
-  }
-}
-
-ExprResult Sema::SemaAtomicOpsOverloaded(ExprResult TheCallResult,
-                                         AtomicExpr::AtomicOp Op) {
-  CallExpr *TheCall = cast<CallExpr>(TheCallResult.get());
-  DeclRefExpr *DRE =cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts());
-
-  // All the non-OpenCL operations take one of the following forms.
-  // The OpenCL operations take the __c11 forms with one extra argument for
-  // synchronization scope.
-  enum {
-    // C    __c11_atomic_init(A *, C)
-    Init,
-
-    // C    __c11_atomic_load(A *, int)
-    Load,
-
-    // void __atomic_load(A *, CP, int)
-    LoadCopy,
-
-    // void __atomic_store(A *, CP, int)
-    Copy,
-
-    // C    __c11_atomic_add(A *, M, int)
-    Arithmetic,
-
-    // C    __atomic_exchange_n(A *, CP, int)
-    Xchg,
-
-    // void __atomic_exchange(A *, C *, CP, int)
-    GNUXchg,
-
-    // bool __c11_atomic_compare_exchange_strong(A *, C *, CP, int, int)
-    C11CmpXchg,
-
-    // bool __atomic_compare_exchange(A *, C *, CP, bool, int, int)
-    GNUCmpXchg
-  } Form = Init;
-
-  const unsigned NumForm = GNUCmpXchg + 1;
-  const unsigned NumArgs[] = { 2, 2, 3, 3, 3, 3, 4, 5, 6 };
-  const unsigned NumVals[] = { 1, 0, 1, 1, 1, 1, 2, 2, 3 };
-  // where:
-  //   C is an appropriate type,
-  //   A is volatile _Atomic(C) for __c11 builtins and is C for GNU builtins,
-  //   CP is C for __c11 builtins and GNU _n builtins and is C * otherwise,
-  //   M is C if C is an integer, and ptrdiff_t if C is a pointer, and
-  //   the int parameters are for orderings.
-
-  static_assert(sizeof(NumArgs)/sizeof(NumArgs[0]) == NumForm
-      && sizeof(NumVals)/sizeof(NumVals[0]) == NumForm,
-      "need to update code for modified forms");
-  static_assert(AtomicExpr::AO__c11_atomic_init == 0 &&
-                    AtomicExpr::AO__c11_atomic_fetch_xor + 1 ==
-                        AtomicExpr::AO__atomic_load,
-                "need to update code for modified C11 atomics");
-  bool IsOpenCL = Op >= AtomicExpr::AO__opencl_atomic_init &&
-                  Op <= AtomicExpr::AO__opencl_atomic_fetch_max;
-  bool IsC11 = (Op >= AtomicExpr::AO__c11_atomic_init &&
-               Op <= AtomicExpr::AO__c11_atomic_fetch_xor) ||
-               IsOpenCL;
-  bool IsN = Op == AtomicExpr::AO__atomic_load_n ||
-             Op == AtomicExpr::AO__atomic_store_n ||
-             Op == AtomicExpr::AO__atomic_exchange_n ||
-             Op == AtomicExpr::AO__atomic_compare_exchange_n;
-  bool IsAddSub = false;
-  bool IsMinMax = false;
-
-  switch (Op) {
-  case AtomicExpr::AO__c11_atomic_init:
-  case AtomicExpr::AO__opencl_atomic_init:
-    Form = Init;
-    break;
-
-  case AtomicExpr::AO__c11_atomic_load:
-  case AtomicExpr::AO__opencl_atomic_load:
-  case AtomicExpr::AO__atomic_load_n:
-    Form = Load;
-    break;
-
-  case AtomicExpr::AO__atomic_load:
-    Form = LoadCopy;
-    break;
-
-  case AtomicExpr::AO__c11_atomic_store:
-  case AtomicExpr::AO__opencl_atomic_store:
-  case AtomicExpr::AO__atomic_store:
-  case AtomicExpr::AO__atomic_store_n:
-    Form = Copy;
-    break;
-
-  case AtomicExpr::AO__c11_atomic_fetch_add:
-  case AtomicExpr::AO__c11_atomic_fetch_sub:
-  case AtomicExpr::AO__opencl_atomic_fetch_add:
-  case AtomicExpr::AO__opencl_atomic_fetch_sub:
-  case AtomicExpr::AO__opencl_atomic_fetch_min:
-  case AtomicExpr::AO__opencl_atomic_fetch_max:
-  case AtomicExpr::AO__atomic_fetch_add:
-  case AtomicExpr::AO__atomic_fetch_sub:
-  case AtomicExpr::AO__atomic_add_fetch:
-  case AtomicExpr::AO__atomic_sub_fetch:
-    IsAddSub = true;
-    LLVM_FALLTHROUGH;
-  case AtomicExpr::AO__c11_atomic_fetch_and:
-  case AtomicExpr::AO__c11_atomic_fetch_or:
-  case AtomicExpr::AO__c11_atomic_fetch_xor:
-  case AtomicExpr::AO__opencl_atomic_fetch_and:
-  case AtomicExpr::AO__opencl_atomic_fetch_or:
-  case AtomicExpr::AO__opencl_atomic_fetch_xor:
-  case AtomicExpr::AO__atomic_fetch_and:
-  case AtomicExpr::AO__atomic_fetch_or:
-  case AtomicExpr::AO__atomic_fetch_xor:
-  case AtomicExpr::AO__atomic_fetch_nand:
-  case AtomicExpr::AO__atomic_and_fetch:
-  case AtomicExpr::AO__atomic_or_fetch:
-  case AtomicExpr::AO__atomic_xor_fetch:
-  case AtomicExpr::AO__atomic_nand_fetch:
-    Form = Arithmetic;
-    break;
-
-  case AtomicExpr::AO__atomic_fetch_min:
-  case AtomicExpr::AO__atomic_fetch_max:
-    IsMinMax = true;
-    Form = Arithmetic;
-    break;
-
-  case AtomicExpr::AO__c11_atomic_exchange:
-  case AtomicExpr::AO__opencl_atomic_exchange:
-  case AtomicExpr::AO__atomic_exchange_n:
-    Form = Xchg;
-    break;
-
-  case AtomicExpr::AO__atomic_exchange:
-    Form = GNUXchg;
-    break;
-
-  case AtomicExpr::AO__c11_atomic_compare_exchange_strong:
-  case AtomicExpr::AO__c11_atomic_compare_exchange_weak:
-  case AtomicExpr::AO__opencl_atomic_compare_exchange_strong:
-  case AtomicExpr::AO__opencl_atomic_compare_exchange_weak:
-    Form = C11CmpXchg;
-    break;
-
-  case AtomicExpr::AO__atomic_compare_exchange:
-  case AtomicExpr::AO__atomic_compare_exchange_n:
-    Form = GNUCmpXchg;
-    break;
-  }
-
-  unsigned AdjustedNumArgs = NumArgs[Form];
-  if (IsOpenCL && Op != AtomicExpr::AO__opencl_atomic_init)
-    ++AdjustedNumArgs;
-  // Check we have the right number of arguments.
-  if (TheCall->getNumArgs() < AdjustedNumArgs) {
-    Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args)
-        << 0 << AdjustedNumArgs << TheCall->getNumArgs()
-        << TheCall->getCallee()->getSourceRange();
-    return ExprError();
-  } else if (TheCall->getNumArgs() > AdjustedNumArgs) {
-    Diag(TheCall->getArg(AdjustedNumArgs)->getBeginLoc(),
-         diag::err_typecheck_call_too_many_args)
-        << 0 << AdjustedNumArgs << TheCall->getNumArgs()
-        << TheCall->getCallee()->getSourceRange();
-    return ExprError();
-  }
-
-  // Inspect the first argument of the atomic operation.
-  Expr *Ptr = TheCall->getArg(0);
-  ExprResult ConvertedPtr = DefaultFunctionArrayLvalueConversion(Ptr);
-  if (ConvertedPtr.isInvalid())
-    return ExprError();
-
-  Ptr = ConvertedPtr.get();
-  const PointerType *pointerType = Ptr->getType()->getAs<PointerType>();
-  if (!pointerType) {
-    Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer)
-        << Ptr->getType() << Ptr->getSourceRange();
-    return ExprError();
-  }
-
-  // For a __c11 builtin, this should be a pointer to an _Atomic type.
-  QualType AtomTy = pointerType->getPointeeType(); // 'A'
-  QualType ValType = AtomTy; // 'C'
-  if (IsC11) {
-    if (!AtomTy->isAtomicType()) {
-      Diag(DRE->getBeginLoc(), diag::err_atomic_op_needs_atomic)
-          << Ptr->getType() << Ptr->getSourceRange();
-      return ExprError();
-    }
-    if ((Form != Load && Form != LoadCopy && AtomTy.isConstQualified()) ||
-        AtomTy.getAddressSpace() == LangAS::opencl_constant) {
-      Diag(DRE->getBeginLoc(), diag::err_atomic_op_needs_non_const_atomic)
-          << (AtomTy.isConstQualified() ? 0 : 1) << Ptr->getType()
-          << Ptr->getSourceRange();
-      return ExprError();
-    }
-    ValType = AtomTy->getAs<AtomicType>()->getValueType();
-  } else if (Form != Load && Form != LoadCopy) {
-    if (ValType.isConstQualified()) {
-      Diag(DRE->getBeginLoc(), diag::err_atomic_op_needs_non_const_pointer)
-          << Ptr->getType() << Ptr->getSourceRange();
-      return ExprError();
-    }
-  }
-
-  // For an arithmetic operation, the implied arithmetic must be well-formed.
-  if (Form == Arithmetic) {
-    // gcc does not enforce these rules for GNU atomics, but we do so for sanity.
-    if (IsAddSub && !ValType->isIntegerType()
-        && !ValType->isPointerType()) {
-      Diag(DRE->getBeginLoc(), diag::err_atomic_op_needs_atomic_int_or_ptr)
-          << IsC11 << Ptr->getType() << Ptr->getSourceRange();
-      return ExprError();
-    }
-    if (IsMinMax) {
-      const BuiltinType *BT = ValType->getAs<BuiltinType>();
-      if (!BT || (BT->getKind() != BuiltinType::Int &&
-                  BT->getKind() != BuiltinType::UInt)) {
-        Diag(DRE->getBeginLoc(), diag::err_atomic_op_needs_int32_or_ptr);
-        return ExprError();
-      }
-    }
-    if (!IsAddSub && !IsMinMax && !ValType->isIntegerType()) {
-      Diag(DRE->getBeginLoc(), diag::err_atomic_op_bitwise_needs_atomic_int)
-          << IsC11 << Ptr->getType() << Ptr->getSourceRange();
-      return ExprError();
-    }
-    if (IsC11 && ValType->isPointerType() &&
-        RequireCompleteType(Ptr->getBeginLoc(), ValType->getPointeeType(),
-                            diag::err_incomplete_type)) {
-      return ExprError();
-    }
-  } else if (IsN && !ValType->isIntegerType() && !ValType->isPointerType()) {
-    // For __atomic_*_n operations, the value type must be a scalar integral or
-    // pointer type which is 1, 2, 4, 8 or 16 bytes in length.
-    Diag(DRE->getBeginLoc(), diag::err_atomic_op_needs_atomic_int_or_ptr)
-        << IsC11 << Ptr->getType() << Ptr->getSourceRange();
-    return ExprError();
-  }
-
-  if (!IsC11 && !AtomTy.isTriviallyCopyableType(Context) &&
-      !AtomTy->isScalarType()) {
-    // For GNU atomics, require a trivially-copyable type. This is not part of
-    // the GNU atomics specification, but we enforce it for sanity.
-    Diag(DRE->getBeginLoc(), diag::err_atomic_op_needs_trivial_copy)
-        << Ptr->getType() << Ptr->getSourceRange();
-    return ExprError();
-  }
-
-  switch (ValType.getObjCLifetime()) {
-  case Qualifiers::OCL_None:
-  case Qualifiers::OCL_ExplicitNone:
-    // okay
-    break;
-
-  case Qualifiers::OCL_Weak:
-  case Qualifiers::OCL_Strong:
-  case Qualifiers::OCL_Autoreleasing:
-    // FIXME: Can this happen? By this point, ValType should be known
-    // to be trivially copyable.
-    Diag(DRE->getBeginLoc(), diag::err_arc_atomic_ownership)
-        << ValType << Ptr->getSourceRange();
-    return ExprError();
-  }
-
-  // All atomic operations have an overload which takes a pointer to a volatile
-  // 'A'.  We shouldn't let the volatile-ness of the pointee-type inject itself
-  // into the result or the other operands. Similarly atomic_load takes a
-  // pointer to a const 'A'.
-  ValType.removeLocalVolatile();
-  ValType.removeLocalConst();
-  QualType ResultType = ValType;
-  if (Form == Copy || Form == LoadCopy || Form == GNUXchg ||
-      Form == Init)
-    ResultType = Context.VoidTy;
-  else if (Form == C11CmpXchg || Form == GNUCmpXchg)
-    ResultType = Context.BoolTy;
-
-  // The type of a parameter passed 'by value'. In the GNU atomics, such
-  // arguments are actually passed as pointers.
-  QualType ByValType = ValType; // 'CP'
-  bool IsPassedByAddress = false;
-  if (!IsC11 && !IsN) {
-    ByValType = Ptr->getType();
-    IsPassedByAddress = true;
-  }
-
-  // The first argument's non-CV pointer type is used to deduce the type of
-  // subsequent arguments, except for:
-  //  - weak flag (always converted to bool)
-  //  - memory order (always converted to int)
-  //  - scope  (always converted to int)
-  for (unsigned i = 0; i != TheCall->getNumArgs(); ++i) {
-    QualType Ty;
-    if (i < NumVals[Form] + 1) {
-      switch (i) {
-      case 0:
-        // The first argument is always a pointer. It has a fixed type.
-        // It is always dereferenced, a nullptr is undefined.
-        CheckNonNullArgument(*this, TheCall->getArg(i), DRE->getBeginLoc());
-        // Nothing else to do: we already know all we want about this pointer.
-        continue;
-      case 1:
-        // The second argument is the non-atomic operand. For arithmetic, this
-        // is always passed by value, and for a compare_exchange it is always
-        // passed by address. For the rest, GNU uses by-address and C11 uses
-        // by-value.
-        assert(Form != Load);
-        if (Form == Init || (Form == Arithmetic && ValType->isIntegerType()))
-          Ty = ValType;
-        else if (Form == Copy || Form == Xchg) {
-          if (IsPassedByAddress)
-            // The value pointer is always dereferenced, a nullptr is undefined.
-            CheckNonNullArgument(*this, TheCall->getArg(i), DRE->getBeginLoc());
-          Ty = ByValType;
-        } else if (Form == Arithmetic)
-          Ty = Context.getPointerDiffType();
-        else {
-          Expr *ValArg = TheCall->getArg(i);
-          // The value pointer is always dereferenced, a nullptr is undefined.
-          CheckNonNullArgument(*this, ValArg, DRE->getBeginLoc());
-          LangAS AS = LangAS::Default;
-          // Keep address space of non-atomic pointer type.
-          if (const PointerType *PtrTy =
-                  ValArg->getType()->getAs<PointerType>()) {
-            AS = PtrTy->getPointeeType().getAddressSpace();
-          }
-          Ty = Context.getPointerType(
-              Context.getAddrSpaceQualType(ValType.getUnqualifiedType(), AS));
-        }
-        break;
-      case 2:
-        // The third argument to compare_exchange / GNU exchange is the desired
-        // value, either by-value (for the C11 and *_n variant) or as a pointer.
-        if (IsPassedByAddress)
-          CheckNonNullArgument(*this, TheCall->getArg(i), DRE->getBeginLoc());
-        Ty = ByValType;
-        break;
-      case 3:
-        // The fourth argument to GNU compare_exchange is a 'weak' flag.
-        Ty = Context.BoolTy;
-        break;
-      }
-    } else {
-      // The order(s) and scope are always converted to int.
-      Ty = Context.IntTy;
-    }
-
-    InitializedEntity Entity =
-        InitializedEntity::InitializeParameter(Context, Ty, false);
-    ExprResult Arg = TheCall->getArg(i);
-    Arg = PerformCopyInitialization(Entity, SourceLocation(), Arg);
-    if (Arg.isInvalid())
-      return true;
-    TheCall->setArg(i, Arg.get());
-  }
-
-  // Permute the arguments into a 'consistent' order.
-  SmallVector<Expr*, 5> SubExprs;
-  SubExprs.push_back(Ptr);
-  switch (Form) {
-  case Init:
-    // Note, AtomicExpr::getVal1() has a special case for this atomic.
-    SubExprs.push_back(TheCall->getArg(1)); // Val1
-    break;
-  case Load:
-    SubExprs.push_back(TheCall->getArg(1)); // Order
-    break;
-  case LoadCopy:
-  case Copy:
-  case Arithmetic:
-  case Xchg:
-    SubExprs.push_back(TheCall->getArg(2)); // Order
-    SubExprs.push_back(TheCall->getArg(1)); // Val1
-    break;
-  case GNUXchg:
-    // Note, AtomicExpr::getVal2() has a special case for this atomic.
-    SubExprs.push_back(TheCall->getArg(3)); // Order
-    SubExprs.push_back(TheCall->getArg(1)); // Val1
-    SubExprs.push_back(TheCall->getArg(2)); // Val2
-    break;
-  case C11CmpXchg:
-    SubExprs.push_back(TheCall->getArg(3)); // Order
-    SubExprs.push_back(TheCall->getArg(1)); // Val1
-    SubExprs.push_back(TheCall->getArg(4)); // OrderFail
-    SubExprs.push_back(TheCall->getArg(2)); // Val2
-    break;
-  case GNUCmpXchg:
-    SubExprs.push_back(TheCall->getArg(4)); // Order
-    SubExprs.push_back(TheCall->getArg(1)); // Val1
-    SubExprs.push_back(TheCall->getArg(5)); // OrderFail
-    SubExprs.push_back(TheCall->getArg(2)); // Val2
-    SubExprs.push_back(TheCall->getArg(3)); // Weak
-    break;
-  }
-
-  if (SubExprs.size() >= 2 && Form != Init) {
-    llvm::APSInt Result(32);
-    if (SubExprs[1]->isIntegerConstantExpr(Result, Context) &&
-        !isValidOrderingForOp(Result.getSExtValue(), Op))
-      Diag(SubExprs[1]->getBeginLoc(),
-           diag::warn_atomic_op_has_invalid_memory_order)
-          << SubExprs[1]->getSourceRange();
-  }
-
-  if (auto ScopeModel = AtomicExpr::getScopeModel(Op)) {
-    auto *Scope = TheCall->getArg(TheCall->getNumArgs() - 1);
-    llvm::APSInt Result(32);
-    if (Scope->isIntegerConstantExpr(Result, Context) &&
-        !ScopeModel->isValid(Result.getZExtValue())) {
-      Diag(Scope->getBeginLoc(), diag::err_atomic_op_has_invalid_synch_scope)
-          << Scope->getSourceRange();
-    }
-    SubExprs.push_back(Scope);
-  }
-
-  AtomicExpr *AE =
-      new (Context) AtomicExpr(TheCall->getCallee()->getBeginLoc(), SubExprs,
-                               ResultType, Op, TheCall->getRParenLoc());
-
-  if ((Op == AtomicExpr::AO__c11_atomic_load ||
-       Op == AtomicExpr::AO__c11_atomic_store ||
-       Op == AtomicExpr::AO__opencl_atomic_load ||
-       Op == AtomicExpr::AO__opencl_atomic_store ) &&
-      Context.AtomicUsesUnsupportedLibcall(AE))
-    Diag(AE->getBeginLoc(), diag::err_atomic_load_store_uses_lib)
-        << ((Op == AtomicExpr::AO__c11_atomic_load ||
-             Op == AtomicExpr::AO__opencl_atomic_load)
-                ? 0
-                : 1);
-
-  return AE;
-}
-
-/// checkBuiltinArgument - Given a call to a builtin function, perform
-/// normal type-checking on the given argument, updating the call in
-/// place.  This is useful when a builtin function requires custom
-/// type-checking for some of its arguments but not necessarily all of
-/// them.
-///
-/// Returns true on error.
-static bool checkBuiltinArgument(Sema &S, CallExpr *E, unsigned ArgIndex) {
-  FunctionDecl *Fn = E->getDirectCallee();
-  assert(Fn && "builtin call without direct callee!");
-
-  ParmVarDecl *Param = Fn->getParamDecl(ArgIndex);
-  InitializedEntity Entity =
-    InitializedEntity::InitializeParameter(S.Context, Param);
-
-  ExprResult Arg = E->getArg(0);
-  Arg = S.PerformCopyInitialization(Entity, SourceLocation(), Arg);
-  if (Arg.isInvalid())
-    return true;
-
-  E->setArg(ArgIndex, Arg.get());
-  return false;
-}
-
-/// We have a call to a function like __sync_fetch_and_add, which is an
-/// overloaded function based on the pointer type of its first argument.
-/// The main BuildCallExpr routines have already promoted the types of
-/// arguments because all of these calls are prototyped as void(...).
-///
-/// This function goes through and does final semantic checking for these
-/// builtins, as well as generating any warnings.
-ExprResult
-Sema::SemaBuiltinAtomicOverloaded(ExprResult TheCallResult) {
-  CallExpr *TheCall = static_cast<CallExpr *>(TheCallResult.get());
-  Expr *Callee = TheCall->getCallee();
-  DeclRefExpr *DRE = cast<DeclRefExpr>(Callee->IgnoreParenCasts());
-  FunctionDecl *FDecl = cast<FunctionDecl>(DRE->getDecl());
-
-  // Ensure that we have at least one argument to do type inference from.
-  if (TheCall->getNumArgs() < 1) {
-    Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args_at_least)
-        << 0 << 1 << TheCall->getNumArgs() << Callee->getSourceRange();
-    return ExprError();
-  }
-
-  // Inspect the first argument of the atomic builtin.  This should always be
-  // a pointer type, whose element is an integral scalar or pointer type.
-  // Because it is a pointer type, we don't have to worry about any implicit
-  // casts here.
-  // FIXME: We don't allow floating point scalars as input.
-  Expr *FirstArg = TheCall->getArg(0);
-  ExprResult FirstArgResult = DefaultFunctionArrayLvalueConversion(FirstArg);
-  if (FirstArgResult.isInvalid())
-    return ExprError();
-  FirstArg = FirstArgResult.get();
-  TheCall->setArg(0, FirstArg);
-
-  const PointerType *pointerType = FirstArg->getType()->getAs<PointerType>();
-  if (!pointerType) {
-    Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer)
-        << FirstArg->getType() << FirstArg->getSourceRange();
-    return ExprError();
-  }
-
-  QualType ValType = pointerType->getPointeeType();
-  if (!ValType->isIntegerType() && !ValType->isAnyPointerType() &&
-      !ValType->isBlockPointerType()) {
-    Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_must_be_pointer_intptr)
-        << FirstArg->getType() << FirstArg->getSourceRange();
-    return ExprError();
-  }
-
-  if (ValType.isConstQualified()) {
-    Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_cannot_be_const)
-        << FirstArg->getType() << FirstArg->getSourceRange();
-    return ExprError();
-  }
-
-  switch (ValType.getObjCLifetime()) {
-  case Qualifiers::OCL_None:
-  case Qualifiers::OCL_ExplicitNone:
-    // okay
-    break;
-
-  case Qualifiers::OCL_Weak:
-  case Qualifiers::OCL_Strong:
-  case Qualifiers::OCL_Autoreleasing:
-    Diag(DRE->getBeginLoc(), diag::err_arc_atomic_ownership)
-        << ValType << FirstArg->getSourceRange();
-    return ExprError();
-  }
-
-  // Strip any qualifiers off ValType.
-  ValType = ValType.getUnqualifiedType();
-
-  // The majority of builtins return a value, but a few have special return
-  // types, so allow them to override appropriately below.
-  QualType ResultType = ValType;
-
-  // We need to figure out which concrete builtin this maps onto.  For example,
-  // __sync_fetch_and_add with a 2 byte object turns into
-  // __sync_fetch_and_add_2.
-#define BUILTIN_ROW(x) \
-  { Builtin::BI##x##_1, Builtin::BI##x##_2, Builtin::BI##x##_4, \
-    Builtin::BI##x##_8, Builtin::BI##x##_16 }
-
-  static const unsigned BuiltinIndices[][5] = {
-    BUILTIN_ROW(__sync_fetch_and_add),
-    BUILTIN_ROW(__sync_fetch_and_sub),
-    BUILTIN_ROW(__sync_fetch_and_or),
-    BUILTIN_ROW(__sync_fetch_and_and),
-    BUILTIN_ROW(__sync_fetch_and_xor),
-    BUILTIN_ROW(__sync_fetch_and_nand),
-
-    BUILTIN_ROW(__sync_add_and_fetch),
-    BUILTIN_ROW(__sync_sub_and_fetch),
-    BUILTIN_ROW(__sync_and_and_fetch),
-    BUILTIN_ROW(__sync_or_and_fetch),
-    BUILTIN_ROW(__sync_xor_and_fetch),
-    BUILTIN_ROW(__sync_nand_and_fetch),
-
-    BUILTIN_ROW(__sync_val_compare_and_swap),
-    BUILTIN_ROW(__sync_bool_compare_and_swap),
-    BUILTIN_ROW(__sync_lock_test_and_set),
-    BUILTIN_ROW(__sync_lock_release),
-    BUILTIN_ROW(__sync_swap)
-  };
-#undef BUILTIN_ROW
-
-  // Determine the index of the size.
-  unsigned SizeIndex;
-  switch (Context.getTypeSizeInChars(ValType).getQuantity()) {
-  case 1: SizeIndex = 0; break;
-  case 2: SizeIndex = 1; break;
-  case 4: SizeIndex = 2; break;
-  case 8: SizeIndex = 3; break;
-  case 16: SizeIndex = 4; break;
-  default:
-    Diag(DRE->getBeginLoc(), diag::err_atomic_builtin_pointer_size)
-        << FirstArg->getType() << FirstArg->getSourceRange();
-    return ExprError();
-  }
-
-  // Each of these builtins has one pointer argument, followed by some number of
-  // values (0, 1 or 2) followed by a potentially empty varags list of stuff
-  // that we ignore.  Find out which row of BuiltinIndices to read from as well
-  // as the number of fixed args.
-  unsigned BuiltinID = FDecl->getBuiltinID();
-  unsigned BuiltinIndex, NumFixed = 1;
-  bool WarnAboutSemanticsChange = false;
-  switch (BuiltinID) {
-  default: llvm_unreachable("Unknown overloaded atomic builtin!");
-  case Builtin::BI__sync_fetch_and_add:
-  case Builtin::BI__sync_fetch_and_add_1:
-  case Builtin::BI__sync_fetch_and_add_2:
-  case Builtin::BI__sync_fetch_and_add_4:
-  case Builtin::BI__sync_fetch_and_add_8:
-  case Builtin::BI__sync_fetch_and_add_16:
-    BuiltinIndex = 0;
-    break;
-
-  case Builtin::BI__sync_fetch_and_sub:
-  case Builtin::BI__sync_fetch_and_sub_1:
-  case Builtin::BI__sync_fetch_and_sub_2:
-  case Builtin::BI__sync_fetch_and_sub_4:
-  case Builtin::BI__sync_fetch_and_sub_8:
-  case Builtin::BI__sync_fetch_and_sub_16:
-    BuiltinIndex = 1;
-    break;
-
-  case Builtin::BI__sync_fetch_and_or:
-  case Builtin::BI__sync_fetch_and_or_1:
-  case Builtin::BI__sync_fetch_and_or_2:
-  case Builtin::BI__sync_fetch_and_or_4:
-  case Builtin::BI__sync_fetch_and_or_8:
-  case Builtin::BI__sync_fetch_and_or_16:
-    BuiltinIndex = 2;
-    break;
-
-  case Builtin::BI__sync_fetch_and_and:
-  case Builtin::BI__sync_fetch_and_and_1:
-  case Builtin::BI__sync_fetch_and_and_2:
-  case Builtin::BI__sync_fetch_and_and_4:
-  case Builtin::BI__sync_fetch_and_and_8:
-  case Builtin::BI__sync_fetch_and_and_16:
-    BuiltinIndex = 3;
-    break;
-
-  case Builtin::BI__sync_fetch_and_xor:
-  case Builtin::BI__sync_fetch_and_xor_1:
-  case Builtin::BI__sync_fetch_and_xor_2:
-  case Builtin::BI__sync_fetch_and_xor_4:
-  case Builtin::BI__sync_fetch_and_xor_8:
-  case Builtin::BI__sync_fetch_and_xor_16:
-    BuiltinIndex = 4;
-    break;
-
-  case Builtin::BI__sync_fetch_and_nand:
-  case Builtin::BI__sync_fetch_and_nand_1:
-  case Builtin::BI__sync_fetch_and_nand_2:
-  case Builtin::BI__sync_fetch_and_nand_4:
-  case Builtin::BI__sync_fetch_and_nand_8:
-  case Builtin::BI__sync_fetch_and_nand_16:
-    BuiltinIndex = 5;
-    WarnAboutSemanticsChange = true;
-    break;
-
-  case Builtin::BI__sync_add_and_fetch:
-  case Builtin::BI__sync_add_and_fetch_1:
-  case Builtin::BI__sync_add_and_fetch_2:
-  case Builtin::BI__sync_add_and_fetch_4:
-  case Builtin::BI__sync_add_and_fetch_8:
-  case Builtin::BI__sync_add_and_fetch_16:
-    BuiltinIndex = 6;
-    break;
-
-  case Builtin::BI__sync_sub_and_fetch:
-  case Builtin::BI__sync_sub_and_fetch_1:
-  case Builtin::BI__sync_sub_and_fetch_2:
-  case Builtin::BI__sync_sub_and_fetch_4:
-  case Builtin::BI__sync_sub_and_fetch_8:
-  case Builtin::BI__sync_sub_and_fetch_16:
-    BuiltinIndex = 7;
-    break;
-
-  case Builtin::BI__sync_and_and_fetch:
-  case Builtin::BI__sync_and_and_fetch_1:
-  case Builtin::BI__sync_and_and_fetch_2:
-  case Builtin::BI__sync_and_and_fetch_4:
-  case Builtin::BI__sync_and_and_fetch_8:
-  case Builtin::BI__sync_and_and_fetch_16:
-    BuiltinIndex = 8;
-    break;
-
-  case Builtin::BI__sync_or_and_fetch:
-  case Builtin::BI__sync_or_and_fetch_1:
-  case Builtin::BI__sync_or_and_fetch_2:
-  case Builtin::BI__sync_or_and_fetch_4:
-  case Builtin::BI__sync_or_and_fetch_8:
-  case Builtin::BI__sync_or_and_fetch_16:
-    BuiltinIndex = 9;
-    break;
-
-  case Builtin::BI__sync_xor_and_fetch:
-  case Builtin::BI__sync_xor_and_fetch_1:
-  case Builtin::BI__sync_xor_and_fetch_2:
-  case Builtin::BI__sync_xor_and_fetch_4:
-  case Builtin::BI__sync_xor_and_fetch_8:
-  case Builtin::BI__sync_xor_and_fetch_16:
-    BuiltinIndex = 10;
-    break;
-
-  case Builtin::BI__sync_nand_and_fetch:
-  case Builtin::BI__sync_nand_and_fetch_1:
-  case Builtin::BI__sync_nand_and_fetch_2:
-  case Builtin::BI__sync_nand_and_fetch_4:
-  case Builtin::BI__sync_nand_and_fetch_8:
-  case Builtin::BI__sync_nand_and_fetch_16:
-    BuiltinIndex = 11;
-    WarnAboutSemanticsChange = true;
-    break;
-
-  case Builtin::BI__sync_val_compare_and_swap:
-  case Builtin::BI__sync_val_compare_and_swap_1:
-  case Builtin::BI__sync_val_compare_and_swap_2:
-  case Builtin::BI__sync_val_compare_and_swap_4:
-  case Builtin::BI__sync_val_compare_and_swap_8:
-  case Builtin::BI__sync_val_compare_and_swap_16:
-    BuiltinIndex = 12;
-    NumFixed = 2;
-    break;
-
-  case Builtin::BI__sync_bool_compare_and_swap:
-  case Builtin::BI__sync_bool_compare_and_swap_1:
-  case Builtin::BI__sync_bool_compare_and_swap_2:
-  case Builtin::BI__sync_bool_compare_and_swap_4:
-  case Builtin::BI__sync_bool_compare_and_swap_8:
-  case Builtin::BI__sync_bool_compare_and_swap_16:
-    BuiltinIndex = 13;
-    NumFixed = 2;
-    ResultType = Context.BoolTy;
-    break;
-
-  case Builtin::BI__sync_lock_test_and_set:
-  case Builtin::BI__sync_lock_test_and_set_1:
-  case Builtin::BI__sync_lock_test_and_set_2:
-  case Builtin::BI__sync_lock_test_and_set_4:
-  case Builtin::BI__sync_lock_test_and_set_8:
-  case Builtin::BI__sync_lock_test_and_set_16:
-    BuiltinIndex = 14;
-    break;
-
-  case Builtin::BI__sync_lock_release:
-  case Builtin::BI__sync_lock_release_1:
-  case Builtin::BI__sync_lock_release_2:
-  case Builtin::BI__sync_lock_release_4:
-  case Builtin::BI__sync_lock_release_8:
-  case Builtin::BI__sync_lock_release_16:
-    BuiltinIndex = 15;
-    NumFixed = 0;
-    ResultType = Context.VoidTy;
-    break;
-
-  case Builtin::BI__sync_swap:
-  case Builtin::BI__sync_swap_1:
-  case Builtin::BI__sync_swap_2:
-  case Builtin::BI__sync_swap_4:
-  case Builtin::BI__sync_swap_8:
-  case Builtin::BI__sync_swap_16:
-    BuiltinIndex = 16;
-    break;
-  }
-
-  // Now that we know how many fixed arguments we expect, first check that we
-  // have at least that many.
-  if (TheCall->getNumArgs() < 1+NumFixed) {
-    Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args_at_least)
-        << 0 << 1 + NumFixed << TheCall->getNumArgs()
-        << Callee->getSourceRange();
-    return ExprError();
-  }
-
-  Diag(TheCall->getEndLoc(), diag::warn_atomic_implicit_seq_cst)
-      << Callee->getSourceRange();
-
-  if (WarnAboutSemanticsChange) {
-    Diag(TheCall->getEndLoc(), diag::warn_sync_fetch_and_nand_semantics_change)
-        << Callee->getSourceRange();
-  }
-
-  // Get the decl for the concrete builtin from this, we can tell what the
-  // concrete integer type we should convert to is.
-  unsigned NewBuiltinID = BuiltinIndices[BuiltinIndex][SizeIndex];
-  const char *NewBuiltinName = Context.BuiltinInfo.getName(NewBuiltinID);
-  FunctionDecl *NewBuiltinDecl;
-  if (NewBuiltinID == BuiltinID)
-    NewBuiltinDecl = FDecl;
-  else {
-    // Perform builtin lookup to avoid redeclaring it.
-    DeclarationName DN(&Context.Idents.get(NewBuiltinName));
-    LookupResult Res(*this, DN, DRE->getBeginLoc(), LookupOrdinaryName);
-    LookupName(Res, TUScope, /*AllowBuiltinCreation=*/true);
-    assert(Res.getFoundDecl());
-    NewBuiltinDecl = dyn_cast<FunctionDecl>(Res.getFoundDecl());
-    if (!NewBuiltinDecl)
-      return ExprError();
-  }
-
-  // The first argument --- the pointer --- has a fixed type; we
-  // deduce the types of the rest of the arguments accordingly.  Walk
-  // the remaining arguments, converting them to the deduced value type.
-  for (unsigned i = 0; i != NumFixed; ++i) {
-    ExprResult Arg = TheCall->getArg(i+1);
-
-    // GCC does an implicit conversion to the pointer or integer ValType.  This
-    // can fail in some cases (1i -> int**), check for this error case now.
-    // Initialize the argument.
-    InitializedEntity Entity = InitializedEntity::InitializeParameter(Context,
-                                                   ValType, /*consume*/ false);
-    Arg = PerformCopyInitialization(Entity, SourceLocation(), Arg);
-    if (Arg.isInvalid())
-      return ExprError();
-
-    // Okay, we have something that *can* be converted to the right type.  Check
-    // to see if there is a potentially weird extension going on here.  This can
-    // happen when you do an atomic operation on something like an char* and
-    // pass in 42.  The 42 gets converted to char.  This is even more strange
-    // for things like 45.123 -> char, etc.
-    // FIXME: Do this check.
-    TheCall->setArg(i+1, Arg.get());
-  }
-
-  // Create a new DeclRefExpr to refer to the new decl.
-  DeclRefExpr *NewDRE = DeclRefExpr::Create(
-      Context, DRE->getQualifierLoc(), SourceLocation(), NewBuiltinDecl,
-      /*enclosing*/ false, DRE->getLocation(), Context.BuiltinFnTy,
-      DRE->getValueKind(), nullptr, nullptr, DRE->isNonOdrUse());
-
-  // Set the callee in the CallExpr.
-  // FIXME: This loses syntactic information.
-  QualType CalleePtrTy = Context.getPointerType(NewBuiltinDecl->getType());
-  ExprResult PromotedCall = ImpCastExprToType(NewDRE, CalleePtrTy,
-                                              CK_BuiltinFnToFnPtr);
-  TheCall->setCallee(PromotedCall.get());
-
-  // Change the result type of the call to match the original value type. This
-  // is arbitrary, but the codegen for these builtins ins design to handle it
-  // gracefully.
-  TheCall->setType(ResultType);
-
-  return TheCallResult;
-}
-
-/// SemaBuiltinNontemporalOverloaded - We have a call to
-/// __builtin_nontemporal_store or __builtin_nontemporal_load, which is an
-/// overloaded function based on the pointer type of its last argument.
-///
-/// This function goes through and does final semantic checking for these
-/// builtins.
-ExprResult Sema::SemaBuiltinNontemporalOverloaded(ExprResult TheCallResult) {
-  CallExpr *TheCall = (CallExpr *)TheCallResult.get();
-  DeclRefExpr *DRE =
-      cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts());
-  FunctionDecl *FDecl = cast<FunctionDecl>(DRE->getDecl());
-  unsigned BuiltinID = FDecl->getBuiltinID();
-  assert((BuiltinID == Builtin::BI__builtin_nontemporal_store ||
-          BuiltinID == Builtin::BI__builtin_nontemporal_load) &&
-         "Unexpected nontemporal load/store builtin!");
-  bool isStore = BuiltinID == Builtin::BI__builtin_nontemporal_store;
-  unsigned numArgs = isStore ? 2 : 1;
-
-  // Ensure that we have the proper number of arguments.
-  if (checkArgCount(*this, TheCall, numArgs))
-    return ExprError();
-
-  // Inspect the last argument of the nontemporal builtin.  This should always
-  // be a pointer type, from which we imply the type of the memory access.
-  // Because it is a pointer type, we don't have to worry about any implicit
-  // casts here.
-  Expr *PointerArg = TheCall->getArg(numArgs - 1);
-  ExprResult PointerArgResult =
-      DefaultFunctionArrayLvalueConversion(PointerArg);
-
-  if (PointerArgResult.isInvalid())
-    return ExprError();
-  PointerArg = PointerArgResult.get();
-  TheCall->setArg(numArgs - 1, PointerArg);
-
-  const PointerType *pointerType = PointerArg->getType()->getAs<PointerType>();
-  if (!pointerType) {
-    Diag(DRE->getBeginLoc(), diag::err_nontemporal_builtin_must_be_pointer)
-        << PointerArg->getType() << PointerArg->getSourceRange();
-    return ExprError();
-  }
-
-  QualType ValType = pointerType->getPointeeType();
-
-  // Strip any qualifiers off ValType.
-  ValType = ValType.getUnqualifiedType();
-  if (!ValType->isIntegerType() && !ValType->isAnyPointerType() &&
-      !ValType->isBlockPointerType() && !ValType->isFloatingType() &&
-      !ValType->isVectorType()) {
-    Diag(DRE->getBeginLoc(),
-         diag::err_nontemporal_builtin_must_be_pointer_intfltptr_or_vector)
-        << PointerArg->getType() << PointerArg->getSourceRange();
-    return ExprError();
-  }
-
-  if (!isStore) {
-    TheCall->setType(ValType);
-    return TheCallResult;
-  }
-
-  ExprResult ValArg = TheCall->getArg(0);
-  InitializedEntity Entity = InitializedEntity::InitializeParameter(
-      Context, ValType, /*consume*/ false);
-  ValArg = PerformCopyInitialization(Entity, SourceLocation(), ValArg);
-  if (ValArg.isInvalid())
-    return ExprError();
-
-  TheCall->setArg(0, ValArg.get());
-  TheCall->setType(Context.VoidTy);
-  return TheCallResult;
-}
-
-/// CheckObjCString - Checks that the argument to the builtin
-/// CFString constructor is correct
-/// Note: It might also make sense to do the UTF-16 conversion here (would
-/// simplify the backend).
-bool Sema::CheckObjCString(Expr *Arg) {
-  Arg = Arg->IgnoreParenCasts();
-  StringLiteral *Literal = dyn_cast<StringLiteral>(Arg);
-
-  if (!Literal || !Literal->isAscii()) {
-    Diag(Arg->getBeginLoc(), diag::err_cfstring_literal_not_string_constant)
-        << Arg->getSourceRange();
-    return true;
-  }
-
-  if (Literal->containsNonAsciiOrNull()) {
-    StringRef String = Literal->getString();
-    unsigned NumBytes = String.size();
-    SmallVector<llvm::UTF16, 128> ToBuf(NumBytes);
-    const llvm::UTF8 *FromPtr = (const llvm::UTF8 *)String.data();
-    llvm::UTF16 *ToPtr = &ToBuf[0];
-
-    llvm::ConversionResult Result =
-        llvm::ConvertUTF8toUTF16(&FromPtr, FromPtr + NumBytes, &ToPtr,
-                                 ToPtr + NumBytes, llvm::strictConversion);
-    // Check for conversion failure.
-    if (Result != llvm::conversionOK)
-      Diag(Arg->getBeginLoc(), diag::warn_cfstring_truncated)
-          << Arg->getSourceRange();
-  }
-  return false;
-}
-
-/// CheckObjCString - Checks that the format string argument to the os_log()
-/// and os_trace() functions is correct, and converts it to const char *.
-ExprResult Sema::CheckOSLogFormatStringArg(Expr *Arg) {
-  Arg = Arg->IgnoreParenCasts();
-  auto *Literal = dyn_cast<StringLiteral>(Arg);
-  if (!Literal) {
-    if (auto *ObjcLiteral = dyn_cast<ObjCStringLiteral>(Arg)) {
-      Literal = ObjcLiteral->getString();
-    }
-  }
-
-  if (!Literal || (!Literal->isAscii() && !Literal->isUTF8())) {
-    return ExprError(
-        Diag(Arg->getBeginLoc(), diag::err_os_log_format_not_string_constant)
-        << Arg->getSourceRange());
-  }
-
-  ExprResult Result(Literal);
-  QualType ResultTy = Context.getPointerType(Context.CharTy.withConst());
-  InitializedEntity Entity =
-      InitializedEntity::InitializeParameter(Context, ResultTy, false);
-  Result = PerformCopyInitialization(Entity, SourceLocation(), Result);
-  return Result;
-}
-
-/// Check that the user is calling the appropriate va_start builtin for the
-/// target and calling convention.
-static bool checkVAStartABI(Sema &S, unsigned BuiltinID, Expr *Fn) {
-  const llvm::Triple &TT = S.Context.getTargetInfo().getTriple();
-  bool IsX64 = TT.getArch() == llvm::Triple::x86_64;
-  bool IsAArch64 = TT.getArch() == llvm::Triple::aarch64;
-  bool IsWindows = TT.isOSWindows();
-  bool IsMSVAStart = BuiltinID == Builtin::BI__builtin_ms_va_start;
-  if (IsX64 || IsAArch64) {
-    CallingConv CC = CC_C;
-    if (const FunctionDecl *FD = S.getCurFunctionDecl())
-      CC = FD->getType()->getAs<FunctionType>()->getCallConv();
-    if (IsMSVAStart) {
-      // Don't allow this in System V ABI functions.
-      if (CC == CC_X86_64SysV || (!IsWindows && CC != CC_Win64))
-        return S.Diag(Fn->getBeginLoc(),
-                      diag::err_ms_va_start_used_in_sysv_function);
-    } else {
-      // On x86-64/AArch64 Unix, don't allow this in Win64 ABI functions.
-      // On x64 Windows, don't allow this in System V ABI functions.
-      // (Yes, that means there's no corresponding way to support variadic
-      // System V ABI functions on Windows.)
-      if ((IsWindows && CC == CC_X86_64SysV) ||
-          (!IsWindows && CC == CC_Win64))
-        return S.Diag(Fn->getBeginLoc(),
-                      diag::err_va_start_used_in_wrong_abi_function)
-               << !IsWindows;
-    }
-    return false;
-  }
-
-  if (IsMSVAStart)
-    return S.Diag(Fn->getBeginLoc(), diag::err_builtin_x64_aarch64_only);
-  return false;
-}
-
-static bool checkVAStartIsInVariadicFunction(Sema &S, Expr *Fn,
-                                             ParmVarDecl **LastParam = nullptr) {
-  // Determine whether the current function, block, or obj-c method is variadic
-  // and get its parameter list.
-  bool IsVariadic = false;
-  ArrayRef<ParmVarDecl *> Params;
-  DeclContext *Caller = S.CurContext;
-  if (auto *Block = dyn_cast<BlockDecl>(Caller)) {
-    IsVariadic = Block->isVariadic();
-    Params = Block->parameters();
-  } else if (auto *FD = dyn_cast<FunctionDecl>(Caller)) {
-    IsVariadic = FD->isVariadic();
-    Params = FD->parameters();
-  } else if (auto *MD = dyn_cast<ObjCMethodDecl>(Caller)) {
-    IsVariadic = MD->isVariadic();
-    // FIXME: This isn't correct for methods (results in bogus warning).
-    Params = MD->parameters();
-  } else if (isa<CapturedDecl>(Caller)) {
-    // We don't support va_start in a CapturedDecl.
-    S.Diag(Fn->getBeginLoc(), diag::err_va_start_captured_stmt);
-    return true;
-  } else {
-    // This must be some other declcontext that parses exprs.
-    S.Diag(Fn->getBeginLoc(), diag::err_va_start_outside_function);
-    return true;
-  }
-
-  if (!IsVariadic) {
-    S.Diag(Fn->getBeginLoc(), diag::err_va_start_fixed_function);
-    return true;
-  }
-
-  if (LastParam)
-    *LastParam = Params.empty() ? nullptr : Params.back();
-
-  return false;
-}
-
-/// Check the arguments to '__builtin_va_start' or '__builtin_ms_va_start'
-/// for validity.  Emit an error and return true on failure; return false
-/// on success.
-bool Sema::SemaBuiltinVAStart(unsigned BuiltinID, CallExpr *TheCall) {
-  Expr *Fn = TheCall->getCallee();
-
-  if (checkVAStartABI(*this, BuiltinID, Fn))
-    return true;
-
-  if (TheCall->getNumArgs() > 2) {
-    Diag(TheCall->getArg(2)->getBeginLoc(),
-         diag::err_typecheck_call_too_many_args)
-        << 0 /*function call*/ << 2 << TheCall->getNumArgs()
-        << Fn->getSourceRange()
-        << SourceRange(TheCall->getArg(2)->getBeginLoc(),
-                       (*(TheCall->arg_end() - 1))->getEndLoc());
-    return true;
-  }
-
-  if (TheCall->getNumArgs() < 2) {
-    return Diag(TheCall->getEndLoc(),
-                diag::err_typecheck_call_too_few_args_at_least)
-           << 0 /*function call*/ << 2 << TheCall->getNumArgs();
-  }
-
-  // Type-check the first argument normally.
-  if (checkBuiltinArgument(*this, TheCall, 0))
-    return true;
-
-  // Check that the current function is variadic, and get its last parameter.
-  ParmVarDecl *LastParam;
-  if (checkVAStartIsInVariadicFunction(*this, Fn, &LastParam))
-    return true;
-
-  // Verify that the second argument to the builtin is the last argument of the
-  // current function or method.
-  bool SecondArgIsLastNamedArgument = false;
-  const Expr *Arg = TheCall->getArg(1)->IgnoreParenCasts();
-
-  // These are valid if SecondArgIsLastNamedArgument is false after the next
-  // block.
-  QualType Type;
-  SourceLocation ParamLoc;
-  bool IsCRegister = false;
-
-  if (const DeclRefExpr *DR = dyn_cast<DeclRefExpr>(Arg)) {
-    if (const ParmVarDecl *PV = dyn_cast<ParmVarDecl>(DR->getDecl())) {
-      SecondArgIsLastNamedArgument = PV == LastParam;
-
-      Type = PV->getType();
-      ParamLoc = PV->getLocation();
-      IsCRegister =
-          PV->getStorageClass() == SC_Register && !getLangOpts().CPlusPlus;
-    }
-  }
-
-  if (!SecondArgIsLastNamedArgument)
-    Diag(TheCall->getArg(1)->getBeginLoc(),
-         diag::warn_second_arg_of_va_start_not_last_named_param);
-  else if (IsCRegister || Type->isReferenceType() ||
-           Type->isSpecificBuiltinType(BuiltinType::Float) || [=] {
-             // Promotable integers are UB, but enumerations need a bit of
-             // extra checking to see what their promotable type actually is.
-             if (!Type->isPromotableIntegerType())
-               return false;
-             if (!Type->isEnumeralType())
-               return true;
-             const EnumDecl *ED = Type->getAs<EnumType>()->getDecl();
-             return !(ED &&
-                      Context.typesAreCompatible(ED->getPromotionType(), Type));
-           }()) {
-    unsigned Reason = 0;
-    if (Type->isReferenceType())  Reason = 1;
-    else if (IsCRegister)         Reason = 2;
-    Diag(Arg->getBeginLoc(), diag::warn_va_start_type_is_undefined) << Reason;
-    Diag(ParamLoc, diag::note_parameter_type) << Type;
-  }
-
-  TheCall->setType(Context.VoidTy);
-  return false;
-}
-
-bool Sema::SemaBuiltinVAStartARMMicrosoft(CallExpr *Call) {
-  // void __va_start(va_list *ap, const char *named_addr, size_t slot_size,
-  //                 const char *named_addr);
-
-  Expr *Func = Call->getCallee();
-
-  if (Call->getNumArgs() < 3)
-    return Diag(Call->getEndLoc(),
-                diag::err_typecheck_call_too_few_args_at_least)
-           << 0 /*function call*/ << 3 << Call->getNumArgs();
-
-  // Type-check the first argument normally.
-  if (checkBuiltinArgument(*this, Call, 0))
-    return true;
-
-  // Check that the current function is variadic.
-  if (checkVAStartIsInVariadicFunction(*this, Func))
-    return true;
-
-  // __va_start on Windows does not validate the parameter qualifiers
-
-  const Expr *Arg1 = Call->getArg(1)->IgnoreParens();
-  const Type *Arg1Ty = Arg1->getType().getCanonicalType().getTypePtr();
-
-  const Expr *Arg2 = Call->getArg(2)->IgnoreParens();
-  const Type *Arg2Ty = Arg2->getType().getCanonicalType().getTypePtr();
-
-  const QualType &ConstCharPtrTy =
-      Context.getPointerType(Context.CharTy.withConst());
-  if (!Arg1Ty->isPointerType() ||
-      Arg1Ty->getPointeeType().withoutLocalFastQualifiers() != Context.CharTy)
-    Diag(Arg1->getBeginLoc(), diag::err_typecheck_convert_incompatible)
-        << Arg1->getType() << ConstCharPtrTy << 1 /* different class */
-        << 0                                      /* qualifier difference */
-        << 3                                      /* parameter mismatch */
-        << 2 << Arg1->getType() << ConstCharPtrTy;
-
-  const QualType SizeTy = Context.getSizeType();
-  if (Arg2Ty->getCanonicalTypeInternal().withoutLocalFastQualifiers() != SizeTy)
-    Diag(Arg2->getBeginLoc(), diag::err_typecheck_convert_incompatible)
-        << Arg2->getType() << SizeTy << 1 /* different class */
-        << 0                              /* qualifier difference */
-        << 3                              /* parameter mismatch */
-        << 3 << Arg2->getType() << SizeTy;
-
-  return false;
-}
-
-/// SemaBuiltinUnorderedCompare - Handle functions like __builtin_isgreater and
-/// friends.  This is declared to take (...), so we have to check everything.
-bool Sema::SemaBuiltinUnorderedCompare(CallExpr *TheCall) {
-  if (TheCall->getNumArgs() < 2)
-    return Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args)
-           << 0 << 2 << TheCall->getNumArgs() /*function call*/;
-  if (TheCall->getNumArgs() > 2)
-    return Diag(TheCall->getArg(2)->getBeginLoc(),
-                diag::err_typecheck_call_too_many_args)
-           << 0 /*function call*/ << 2 << TheCall->getNumArgs()
-           << SourceRange(TheCall->getArg(2)->getBeginLoc(),
-                          (*(TheCall->arg_end() - 1))->getEndLoc());
-
-  ExprResult OrigArg0 = TheCall->getArg(0);
-  ExprResult OrigArg1 = TheCall->getArg(1);
-
-  // Do standard promotions between the two arguments, returning their common
-  // type.
-  QualType Res = UsualArithmeticConversions(OrigArg0, OrigArg1, false);
-  if (OrigArg0.isInvalid() || OrigArg1.isInvalid())
-    return true;
-
-  // Make sure any conversions are pushed back into the call; this is
-  // type safe since unordered compare builtins are declared as "_Bool
-  // foo(...)".
-  TheCall->setArg(0, OrigArg0.get());
-  TheCall->setArg(1, OrigArg1.get());
-
-  if (OrigArg0.get()->isTypeDependent() || OrigArg1.get()->isTypeDependent())
-    return false;
-
-  // If the common type isn't a real floating type, then the arguments were
-  // invalid for this operation.
-  if (Res.isNull() || !Res->isRealFloatingType())
-    return Diag(OrigArg0.get()->getBeginLoc(),
-                diag::err_typecheck_call_invalid_ordered_compare)
-           << OrigArg0.get()->getType() << OrigArg1.get()->getType()
-           << SourceRange(OrigArg0.get()->getBeginLoc(),
-                          OrigArg1.get()->getEndLoc());
-
-  return false;
-}
-
-/// SemaBuiltinSemaBuiltinFPClassification - Handle functions like
-/// __builtin_isnan and friends.  This is declared to take (...), so we have
-/// to check everything. We expect the last argument to be a floating point
-/// value.
-bool Sema::SemaBuiltinFPClassification(CallExpr *TheCall, unsigned NumArgs) {
-  if (TheCall->getNumArgs() < NumArgs)
-    return Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args)
-           << 0 << NumArgs << TheCall->getNumArgs() /*function call*/;
-  if (TheCall->getNumArgs() > NumArgs)
-    return Diag(TheCall->getArg(NumArgs)->getBeginLoc(),
-                diag::err_typecheck_call_too_many_args)
-           << 0 /*function call*/ << NumArgs << TheCall->getNumArgs()
-           << SourceRange(TheCall->getArg(NumArgs)->getBeginLoc(),
-                          (*(TheCall->arg_end() - 1))->getEndLoc());
-
-  Expr *OrigArg = TheCall->getArg(NumArgs-1);
-
-  if (OrigArg->isTypeDependent())
-    return false;
-
-  // This operation requires a non-_Complex floating-point number.
-  if (!OrigArg->getType()->isRealFloatingType())
-    return Diag(OrigArg->getBeginLoc(),
-                diag::err_typecheck_call_invalid_unary_fp)
-           << OrigArg->getType() << OrigArg->getSourceRange();
-
-  // If this is an implicit conversion from float -> float, double, or
-  // long double, remove it.
-  if (ImplicitCastExpr *Cast = dyn_cast<ImplicitCastExpr>(OrigArg)) {
-    // Only remove standard FloatCasts, leaving other casts inplace
-    if (Cast->getCastKind() == CK_FloatingCast) {
-      Expr *CastArg = Cast->getSubExpr();
-      if (CastArg->getType()->isSpecificBuiltinType(BuiltinType::Float)) {
-        assert(
-            (Cast->getType()->isSpecificBuiltinType(BuiltinType::Double) ||
-             Cast->getType()->isSpecificBuiltinType(BuiltinType::Float) ||
-             Cast->getType()->isSpecificBuiltinType(BuiltinType::LongDouble)) &&
-            "promotion from float to either float, double, or long double is "
-            "the only expected cast here");
-        Cast->setSubExpr(nullptr);
-        TheCall->setArg(NumArgs-1, CastArg);
-      }
-    }
-  }
-
-  return false;
-}
-
-// Customized Sema Checking for VSX builtins that have the following signature:
-// vector [...] builtinName(vector [...], vector [...], const int);
-// Which takes the same type of vectors (any legal vector type) for the first
-// two arguments and takes compile time constant for the third argument.
-// Example builtins are :
-// vector double vec_xxpermdi(vector double, vector double, int);
-// vector short vec_xxsldwi(vector short, vector short, int);
-bool Sema::SemaBuiltinVSX(CallExpr *TheCall) {
-  unsigned ExpectedNumArgs = 3;
-  if (TheCall->getNumArgs() < ExpectedNumArgs)
-    return Diag(TheCall->getEndLoc(),
-                diag::err_typecheck_call_too_few_args_at_least)
-           << 0 /*function call*/ << ExpectedNumArgs << TheCall->getNumArgs()
-           << TheCall->getSourceRange();
-
-  if (TheCall->getNumArgs() > ExpectedNumArgs)
-    return Diag(TheCall->getEndLoc(),
-                diag::err_typecheck_call_too_many_args_at_most)
-           << 0 /*function call*/ << ExpectedNumArgs << TheCall->getNumArgs()
-           << TheCall->getSourceRange();
-
-  // Check the third argument is a compile time constant
-  llvm::APSInt Value;
-  if(!TheCall->getArg(2)->isIntegerConstantExpr(Value, Context))
-    return Diag(TheCall->getBeginLoc(),
-                diag::err_vsx_builtin_nonconstant_argument)
-           << 3 /* argument index */ << TheCall->getDirectCallee()
-           << SourceRange(TheCall->getArg(2)->getBeginLoc(),
-                          TheCall->getArg(2)->getEndLoc());
-
-  QualType Arg1Ty = TheCall->getArg(0)->getType();
-  QualType Arg2Ty = TheCall->getArg(1)->getType();
-
-  // Check the type of argument 1 and argument 2 are vectors.
-  SourceLocation BuiltinLoc = TheCall->getBeginLoc();
-  if ((!Arg1Ty->isVectorType() && !Arg1Ty->isDependentType()) ||
-      (!Arg2Ty->isVectorType() && !Arg2Ty->isDependentType())) {
-    return Diag(BuiltinLoc, diag::err_vec_builtin_non_vector)
-           << TheCall->getDirectCallee()
-           << SourceRange(TheCall->getArg(0)->getBeginLoc(),
-                          TheCall->getArg(1)->getEndLoc());
-  }
-
-  // Check the first two arguments are the same type.
-  if (!Context.hasSameUnqualifiedType(Arg1Ty, Arg2Ty)) {
-    return Diag(BuiltinLoc, diag::err_vec_builtin_incompatible_vector)
-           << TheCall->getDirectCallee()
-           << SourceRange(TheCall->getArg(0)->getBeginLoc(),
-                          TheCall->getArg(1)->getEndLoc());
-  }
-
-  // When default clang type checking is turned off and the customized type
-  // checking is used, the returning type of the function must be explicitly
-  // set. Otherwise it is _Bool by default.
-  TheCall->setType(Arg1Ty);
-
-  return false;
-}
-
-/// SemaBuiltinShuffleVector - Handle __builtin_shufflevector.
-// This is declared to take (...), so we have to check everything.
-ExprResult Sema::SemaBuiltinShuffleVector(CallExpr *TheCall) {
-  if (TheCall->getNumArgs() < 2)
-    return ExprError(Diag(TheCall->getEndLoc(),
-                          diag::err_typecheck_call_too_few_args_at_least)
-                     << 0 /*function call*/ << 2 << TheCall->getNumArgs()
-                     << TheCall->getSourceRange());
-
-  // Determine which of the following types of shufflevector we're checking:
-  // 1) unary, vector mask: (lhs, mask)
-  // 2) binary, scalar mask: (lhs, rhs, index, ..., index)
-  QualType resType = TheCall->getArg(0)->getType();
-  unsigned numElements = 0;
-
-  if (!TheCall->getArg(0)->isTypeDependent() &&
-      !TheCall->getArg(1)->isTypeDependent()) {
-    QualType LHSType = TheCall->getArg(0)->getType();
-    QualType RHSType = TheCall->getArg(1)->getType();
-
-    if (!LHSType->isVectorType() || !RHSType->isVectorType())
-      return ExprError(
-          Diag(TheCall->getBeginLoc(), diag::err_vec_builtin_non_vector)
-          << TheCall->getDirectCallee()
-          << SourceRange(TheCall->getArg(0)->getBeginLoc(),
-                         TheCall->getArg(1)->getEndLoc()));
-
-    numElements = LHSType->getAs<VectorType>()->getNumElements();
-    unsigned numResElements = TheCall->getNumArgs() - 2;
-
-    // Check to see if we have a call with 2 vector arguments, the unary shuffle
-    // with mask.  If so, verify that RHS is an integer vector type with the
-    // same number of elts as lhs.
-    if (TheCall->getNumArgs() == 2) {
-      if (!RHSType->hasIntegerRepresentation() ||
-          RHSType->getAs<VectorType>()->getNumElements() != numElements)
-        return ExprError(Diag(TheCall->getBeginLoc(),
-                              diag::err_vec_builtin_incompatible_vector)
-                         << TheCall->getDirectCallee()
-                         << SourceRange(TheCall->getArg(1)->getBeginLoc(),
-                                        TheCall->getArg(1)->getEndLoc()));
-    } else if (!Context.hasSameUnqualifiedType(LHSType, RHSType)) {
-      return ExprError(Diag(TheCall->getBeginLoc(),
-                            diag::err_vec_builtin_incompatible_vector)
-                       << TheCall->getDirectCallee()
-                       << SourceRange(TheCall->getArg(0)->getBeginLoc(),
-                                      TheCall->getArg(1)->getEndLoc()));
-    } else if (numElements != numResElements) {
-      QualType eltType = LHSType->getAs<VectorType>()->getElementType();
-      resType = Context.getVectorType(eltType, numResElements,
-                                      VectorType::GenericVector);
-    }
-  }
-
-  for (unsigned i = 2; i < TheCall->getNumArgs(); i++) {
-    if (TheCall->getArg(i)->isTypeDependent() ||
-        TheCall->getArg(i)->isValueDependent())
-      continue;
-
-    llvm::APSInt Result(32);
-    if (!TheCall->getArg(i)->isIntegerConstantExpr(Result, Context))
-      return ExprError(Diag(TheCall->getBeginLoc(),
-                            diag::err_shufflevector_nonconstant_argument)
-                       << TheCall->getArg(i)->getSourceRange());
-
-    // Allow -1 which will be translated to undef in the IR.
-    if (Result.isSigned() && Result.isAllOnesValue())
-      continue;
-
-    if (Result.getActiveBits() > 64 || Result.getZExtValue() >= numElements*2)
-      return ExprError(Diag(TheCall->getBeginLoc(),
-                            diag::err_shufflevector_argument_too_large)
-                       << TheCall->getArg(i)->getSourceRange());
-  }
-
-  SmallVector<Expr*, 32> exprs;
-
-  for (unsigned i = 0, e = TheCall->getNumArgs(); i != e; i++) {
-    exprs.push_back(TheCall->getArg(i));
-    TheCall->setArg(i, nullptr);
-  }
-
-  return new (Context) ShuffleVectorExpr(Context, exprs, resType,
-                                         TheCall->getCallee()->getBeginLoc(),
-                                         TheCall->getRParenLoc());
-}
-
-/// SemaConvertVectorExpr - Handle __builtin_convertvector
-ExprResult Sema::SemaConvertVectorExpr(Expr *E, TypeSourceInfo *TInfo,
-                                       SourceLocation BuiltinLoc,
-                                       SourceLocation RParenLoc) {
-  ExprValueKind VK = VK_RValue;
-  ExprObjectKind OK = OK_Ordinary;
-  QualType DstTy = TInfo->getType();
-  QualType SrcTy = E->getType();
-
-  if (!SrcTy->isVectorType() && !SrcTy->isDependentType())
-    return ExprError(Diag(BuiltinLoc,
-                          diag::err_convertvector_non_vector)
-                     << E->getSourceRange());
-  if (!DstTy->isVectorType() && !DstTy->isDependentType())
-    return ExprError(Diag(BuiltinLoc,
-                          diag::err_convertvector_non_vector_type));
-
-  if (!SrcTy->isDependentType() && !DstTy->isDependentType()) {
-    unsigned SrcElts = SrcTy->getAs<VectorType>()->getNumElements();
-    unsigned DstElts = DstTy->getAs<VectorType>()->getNumElements();
-    if (SrcElts != DstElts)
-      return ExprError(Diag(BuiltinLoc,
-                            diag::err_convertvector_incompatible_vector)
-                       << E->getSourceRange());
-  }
-
-  return new (Context)
-      ConvertVectorExpr(E, TInfo, DstTy, VK, OK, BuiltinLoc, RParenLoc);
-}
-
-/// SemaBuiltinPrefetch - Handle __builtin_prefetch.
-// This is declared to take (const void*, ...) and can take two
-// optional constant int args.
-bool Sema::SemaBuiltinPrefetch(CallExpr *TheCall) {
-  unsigned NumArgs = TheCall->getNumArgs();
-
-  if (NumArgs > 3)
-    return Diag(TheCall->getEndLoc(),
-                diag::err_typecheck_call_too_many_args_at_most)
-           << 0 /*function call*/ << 3 << NumArgs << TheCall->getSourceRange();
-
-  // Argument 0 is checked for us and the remaining arguments must be
-  // constant integers.
-  for (unsigned i = 1; i != NumArgs; ++i)
-    if (SemaBuiltinConstantArgRange(TheCall, i, 0, i == 1 ? 1 : 3))
-      return true;
-
-  return false;
-}
-
-/// SemaBuiltinAssume - Handle __assume (MS Extension).
-// __assume does not evaluate its arguments, and should warn if its argument
-// has side effects.
-bool Sema::SemaBuiltinAssume(CallExpr *TheCall) {
-  Expr *Arg = TheCall->getArg(0);
-  if (Arg->isInstantiationDependent()) return false;
-
-  if (Arg->HasSideEffects(Context))
-    Diag(Arg->getBeginLoc(), diag::warn_assume_side_effects)
-        << Arg->getSourceRange()
-        << cast<FunctionDecl>(TheCall->getCalleeDecl())->getIdentifier();
-
-  return false;
-}
-
-/// Handle __builtin_alloca_with_align. This is declared
-/// as (size_t, size_t) where the second size_t must be a power of 2 greater
-/// than 8.
-bool Sema::SemaBuiltinAllocaWithAlign(CallExpr *TheCall) {
-  // The alignment must be a constant integer.
-  Expr *Arg = TheCall->getArg(1);
-
-  // We can't check the value of a dependent argument.
-  if (!Arg->isTypeDependent() && !Arg->isValueDependent()) {
-    if (const auto *UE =
-            dyn_cast<UnaryExprOrTypeTraitExpr>(Arg->IgnoreParenImpCasts()))
-      if (UE->getKind() == UETT_AlignOf ||
-          UE->getKind() == UETT_PreferredAlignOf)
-        Diag(TheCall->getBeginLoc(), diag::warn_alloca_align_alignof)
-            << Arg->getSourceRange();
-
-    llvm::APSInt Result = Arg->EvaluateKnownConstInt(Context);
-
-    if (!Result.isPowerOf2())
-      return Diag(TheCall->getBeginLoc(), diag::err_alignment_not_power_of_two)
-             << Arg->getSourceRange();
-
-    if (Result < Context.getCharWidth())
-      return Diag(TheCall->getBeginLoc(), diag::err_alignment_too_small)
-             << (unsigned)Context.getCharWidth() << Arg->getSourceRange();
-
-    if (Result > std::numeric_limits<int32_t>::max())
-      return Diag(TheCall->getBeginLoc(), diag::err_alignment_too_big)
-             << std::numeric_limits<int32_t>::max() << Arg->getSourceRange();
-  }
-
-  return false;
-}
-
-/// Handle __builtin_assume_aligned. This is declared
-/// as (const void*, size_t, ...) and can take one optional constant int arg.
-bool Sema::SemaBuiltinAssumeAligned(CallExpr *TheCall) {
-  unsigned NumArgs = TheCall->getNumArgs();
-
-  if (NumArgs > 3)
-    return Diag(TheCall->getEndLoc(),
-                diag::err_typecheck_call_too_many_args_at_most)
-           << 0 /*function call*/ << 3 << NumArgs << TheCall->getSourceRange();
-
-  // The alignment must be a constant integer.
-  Expr *Arg = TheCall->getArg(1);
-
-  // We can't check the value of a dependent argument.
-  if (!Arg->isTypeDependent() && !Arg->isValueDependent()) {
-    llvm::APSInt Result;
-    if (SemaBuiltinConstantArg(TheCall, 1, Result))
-      return true;
-
-    if (!Result.isPowerOf2())
-      return Diag(TheCall->getBeginLoc(), diag::err_alignment_not_power_of_two)
-             << Arg->getSourceRange();
-  }
-
-  if (NumArgs > 2) {
-    ExprResult Arg(TheCall->getArg(2));
-    InitializedEntity Entity = InitializedEntity::InitializeParameter(Context,
-      Context.getSizeType(), false);
-    Arg = PerformCopyInitialization(Entity, SourceLocation(), Arg);
-    if (Arg.isInvalid()) return true;
-    TheCall->setArg(2, Arg.get());
-  }
-
-  return false;
-}
-
-bool Sema::SemaBuiltinOSLogFormat(CallExpr *TheCall) {
-  unsigned BuiltinID =
-      cast<FunctionDecl>(TheCall->getCalleeDecl())->getBuiltinID();
-  bool IsSizeCall = BuiltinID == Builtin::BI__builtin_os_log_format_buffer_size;
-
-  unsigned NumArgs = TheCall->getNumArgs();
-  unsigned NumRequiredArgs = IsSizeCall ? 1 : 2;
-  if (NumArgs < NumRequiredArgs) {
-    return Diag(TheCall->getEndLoc(), diag::err_typecheck_call_too_few_args)
-           << 0 /* function call */ << NumRequiredArgs << NumArgs
-           << TheCall->getSourceRange();
-  }
-  if (NumArgs >= NumRequiredArgs + 0x100) {
-    return Diag(TheCall->getEndLoc(),
-                diag::err_typecheck_call_too_many_args_at_most)
-           << 0 /* function call */ << (NumRequiredArgs + 0xff) << NumArgs
-           << TheCall->getSourceRange();
-  }
-  unsigned i = 0;
-
-  // For formatting call, check buffer arg.
-  if (!IsSizeCall) {
-    ExprResult Arg(TheCall->getArg(i));
-    InitializedEntity Entity = InitializedEntity::InitializeParameter(
-        Context, Context.VoidPtrTy, false);
-    Arg = PerformCopyInitialization(Entity, SourceLocation(), Arg);
-    if (Arg.isInvalid())
-      return true;
-    TheCall->setArg(i, Arg.get());
-    i++;
-  }
-
-  // Check string literal arg.
-  unsigned FormatIdx = i;
-  {
-    ExprResult Arg = CheckOSLogFormatStringArg(TheCall->getArg(i));
-    if (Arg.isInvalid())
-      return true;
-    TheCall->setArg(i, Arg.get());
-    i++;
-  }
-
-  // Make sure variadic args are scalar.
-  unsigned FirstDataArg = i;
-  while (i < NumArgs) {
-    ExprResult Arg = DefaultVariadicArgumentPromotion(
-        TheCall->getArg(i), VariadicFunction, nullptr);
-    if (Arg.isInvalid())
-      return true;
-    CharUnits ArgSize = Context.getTypeSizeInChars(Arg.get()->getType());
-    if (ArgSize.getQuantity() >= 0x100) {
-      return Diag(Arg.get()->getEndLoc(), diag::err_os_log_argument_too_big)
-             << i << (int)ArgSize.getQuantity() << 0xff
-             << TheCall->getSourceRange();
-    }
-    TheCall->setArg(i, Arg.get());
-    i++;
-  }
-
-  // Check formatting specifiers. NOTE: We're only doing this for the non-size
-  // call to avoid duplicate diagnostics.
-  if (!IsSizeCall) {
-    llvm::SmallBitVector CheckedVarArgs(NumArgs, false);
-    ArrayRef<const Expr *> Args(TheCall->getArgs(), TheCall->getNumArgs());
-    bool Success = CheckFormatArguments(
-        Args, /*HasVAListArg*/ false, FormatIdx, FirstDataArg, FST_OSLog,
-        VariadicFunction, TheCall->getBeginLoc(), SourceRange(),
-        CheckedVarArgs);
-    if (!Success)
-      return true;
-  }
-
-  if (IsSizeCall) {
-    TheCall->setType(Context.getSizeType());
-  } else {
-    TheCall->setType(Context.VoidPtrTy);
-  }
-  return false;
-}
-
-/// SemaBuiltinConstantArg - Handle a check if argument ArgNum of CallExpr
-/// TheCall is a constant expression.
-bool Sema::SemaBuiltinConstantArg(CallExpr *TheCall, int ArgNum,
-                                  llvm::APSInt &Result) {
-  Expr *Arg = TheCall->getArg(ArgNum);
-  DeclRefExpr *DRE =cast<DeclRefExpr>(TheCall->getCallee()->IgnoreParenCasts());
-  FunctionDecl *FDecl = cast<FunctionDecl>(DRE->getDecl());
-
-  if (Arg->isTypeDependent() || Arg->isValueDependent()) return false;
-
-  if (!Arg->isIntegerConstantExpr(Result, Context))
-    return Diag(TheCall->getBeginLoc(), diag::err_constant_integer_arg_type)
-           << FDecl->getDeclName() << Arg->getSourceRange();
-
-  return false;
-}
-
-/// SemaBuiltinConstantArgRange - Handle a check if argument ArgNum of CallExpr
-/// TheCall is a constant expression in the range [Low, High].
-bool Sema::SemaBuiltinConstantArgRange(CallExpr *TheCall, int ArgNum,
-                                       int Low, int High, bool RangeIsError) {
-  if (isConstantEvaluated())
-    return false;
-  llvm::APSInt Result;
-
-  // We can't check the value of a dependent argument.
-  Expr *Arg = TheCall->getArg(ArgNum);
-  if (Arg->isTypeDependent() || Arg->isValueDependent())
-    return false;
-
-  // Check constant-ness first.
-  if (SemaBuiltinConstantArg(TheCall, ArgNum, Result))
-    return true;
-
-  if (Result.getSExtValue() < Low || Result.getSExtValue() > High) {
-    if (RangeIsError)
-      return Diag(TheCall->getBeginLoc(), diag::err_argument_invalid_range)
-             << Result.toString(10) << Low << High << Arg->getSourceRange();
-    else
-      // Defer the warning until we know if the code will be emitted so that
-      // dead code can ignore this.
-      DiagRuntimeBehavior(TheCall->getBeginLoc(), TheCall,
-                          PDiag(diag::warn_argument_invalid_range)
-                              << Result.toString(10) << Low << High
-                              << Arg->getSourceRange());
-  }
-
-  return false;
-}
-
-/// SemaBuiltinConstantArgMultiple - Handle a check if argument ArgNum of CallExpr
-/// TheCall is a constant expression is a multiple of Num..
-bool Sema::SemaBuiltinConstantArgMultiple(CallExpr *TheCall, int ArgNum,
-                                          unsigned Num) {
-  llvm::APSInt Result;
-
-  // We can't check the value of a dependent argument.
-  Expr *Arg = TheCall->getArg(ArgNum);
-  if (Arg->isTypeDependent() || Arg->isValueDependent())
-    return false;
-
-  // Check constant-ness first.
-  if (SemaBuiltinConstantArg(TheCall, ArgNum, Result))
-    return true;
-
-  if (Result.getSExtValue() % Num != 0)
-    return Diag(TheCall->getBeginLoc(), diag::err_argument_not_multiple)
-           << Num << Arg->getSourceRange();
-
-  return false;
-}
-
-/// SemaBuiltinARMMemoryTaggingCall - Handle calls of memory tagging extensions
-bool Sema::SemaBuiltinARMMemoryTaggingCall(unsigned BuiltinID, CallExpr *TheCall) {
-  if (BuiltinID == AArch64::BI__builtin_arm_irg) {
-    if (checkArgCount(*this, TheCall, 2))
-      return true;
-    Expr *Arg0 = TheCall->getArg(0);
-    Expr *Arg1 = TheCall->getArg(1);
-
-    ExprResult FirstArg = DefaultFunctionArrayLvalueConversion(Arg0);
-    if (FirstArg.isInvalid())
-      return true;
-    QualType FirstArgType = FirstArg.get()->getType();
-    if (!FirstArgType->isAnyPointerType())
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_arg_must_be_pointer)
-               << "first" << FirstArgType << Arg0->getSourceRange();
-    TheCall->setArg(0, FirstArg.get());
-
-    ExprResult SecArg = DefaultLvalueConversion(Arg1);
-    if (SecArg.isInvalid())
-      return true;
-    QualType SecArgType = SecArg.get()->getType();
-    if (!SecArgType->isIntegerType())
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_arg_must_be_integer)
-               << "second" << SecArgType << Arg1->getSourceRange();
-
-    // Derive the return type from the pointer argument.
-    TheCall->setType(FirstArgType);
-    return false;
-  }
-
-  if (BuiltinID == AArch64::BI__builtin_arm_addg) {
-    if (checkArgCount(*this, TheCall, 2))
-      return true;
-
-    Expr *Arg0 = TheCall->getArg(0);
-    ExprResult FirstArg = DefaultFunctionArrayLvalueConversion(Arg0);
-    if (FirstArg.isInvalid())
-      return true;
-    QualType FirstArgType = FirstArg.get()->getType();
-    if (!FirstArgType->isAnyPointerType())
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_arg_must_be_pointer)
-               << "first" << FirstArgType << Arg0->getSourceRange();
-    TheCall->setArg(0, FirstArg.get());
-
-    // Derive the return type from the pointer argument.
-    TheCall->setType(FirstArgType);
-
-    // Second arg must be an constant in range [0,15]
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 15);
-  }
-
-  if (BuiltinID == AArch64::BI__builtin_arm_gmi) {
-    if (checkArgCount(*this, TheCall, 2))
-      return true;
-    Expr *Arg0 = TheCall->getArg(0);
-    Expr *Arg1 = TheCall->getArg(1);
-
-    ExprResult FirstArg = DefaultFunctionArrayLvalueConversion(Arg0);
-    if (FirstArg.isInvalid())
-      return true;
-    QualType FirstArgType = FirstArg.get()->getType();
-    if (!FirstArgType->isAnyPointerType())
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_arg_must_be_pointer)
-               << "first" << FirstArgType << Arg0->getSourceRange();
-
-    QualType SecArgType = Arg1->getType();
-    if (!SecArgType->isIntegerType())
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_arg_must_be_integer)
-               << "second" << SecArgType << Arg1->getSourceRange();
-    TheCall->setType(Context.IntTy);
-    return false;
-  }
-
-  if (BuiltinID == AArch64::BI__builtin_arm_ldg ||
-      BuiltinID == AArch64::BI__builtin_arm_stg) {
-    if (checkArgCount(*this, TheCall, 1))
-      return true;
-    Expr *Arg0 = TheCall->getArg(0);
-    ExprResult FirstArg = DefaultFunctionArrayLvalueConversion(Arg0);
-    if (FirstArg.isInvalid())
-      return true;
-
-    QualType FirstArgType = FirstArg.get()->getType();
-    if (!FirstArgType->isAnyPointerType())
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_arg_must_be_pointer)
-               << "first" << FirstArgType << Arg0->getSourceRange();
-    TheCall->setArg(0, FirstArg.get());
-
-    // Derive the return type from the pointer argument.
-    if (BuiltinID == AArch64::BI__builtin_arm_ldg)
-      TheCall->setType(FirstArgType);
-    return false;
-  }
-
-  if (BuiltinID == AArch64::BI__builtin_arm_subp) {
-    Expr *ArgA = TheCall->getArg(0);
-    Expr *ArgB = TheCall->getArg(1);
-
-    ExprResult ArgExprA = DefaultFunctionArrayLvalueConversion(ArgA);
-    ExprResult ArgExprB = DefaultFunctionArrayLvalueConversion(ArgB);
-
-    if (ArgExprA.isInvalid() || ArgExprB.isInvalid())
-      return true;
-
-    QualType ArgTypeA = ArgExprA.get()->getType();
-    QualType ArgTypeB = ArgExprB.get()->getType();
-
-    auto isNull = [&] (Expr *E) -> bool {
-      return E->isNullPointerConstant(
-                        Context, Expr::NPC_ValueDependentIsNotNull); };
-
-    // argument should be either a pointer or null
-    if (!ArgTypeA->isAnyPointerType() && !isNull(ArgA))
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_arg_null_or_pointer)
-        << "first" << ArgTypeA << ArgA->getSourceRange();
-
-    if (!ArgTypeB->isAnyPointerType() && !isNull(ArgB))
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_arg_null_or_pointer)
-        << "second" << ArgTypeB << ArgB->getSourceRange();
-
-    // Ensure Pointee types are compatible
-    if (ArgTypeA->isAnyPointerType() && !isNull(ArgA) &&
-        ArgTypeB->isAnyPointerType() && !isNull(ArgB)) {
-      QualType pointeeA = ArgTypeA->getPointeeType();
-      QualType pointeeB = ArgTypeB->getPointeeType();
-      if (!Context.typesAreCompatible(
-             Context.getCanonicalType(pointeeA).getUnqualifiedType(),
-             Context.getCanonicalType(pointeeB).getUnqualifiedType())) {
-        return Diag(TheCall->getBeginLoc(), diag::err_typecheck_sub_ptr_compatible)
-          << ArgTypeA <<  ArgTypeB << ArgA->getSourceRange()
-          << ArgB->getSourceRange();
-      }
-    }
-
-    // at least one argument should be pointer type
-    if (!ArgTypeA->isAnyPointerType() && !ArgTypeB->isAnyPointerType())
-      return Diag(TheCall->getBeginLoc(), diag::err_memtag_any2arg_pointer)
-        <<  ArgTypeA << ArgTypeB << ArgA->getSourceRange();
-
-    if (isNull(ArgA)) // adopt type of the other pointer
-      ArgExprA = ImpCastExprToType(ArgExprA.get(), ArgTypeB, CK_NullToPointer);
-
-    if (isNull(ArgB))
-      ArgExprB = ImpCastExprToType(ArgExprB.get(), ArgTypeA, CK_NullToPointer);
-
-    TheCall->setArg(0, ArgExprA.get());
-    TheCall->setArg(1, ArgExprB.get());
-    TheCall->setType(Context.LongLongTy);
-    return false;
-  }
-  assert(false && "Unhandled ARM MTE intrinsic");
-  return true;
-}
-
-/// SemaBuiltinARMSpecialReg - Handle a check if argument ArgNum of CallExpr
-/// TheCall is an ARM/AArch64 special register string literal.
-bool Sema::SemaBuiltinARMSpecialReg(unsigned BuiltinID, CallExpr *TheCall,
-                                    int ArgNum, unsigned ExpectedFieldNum,
-                                    bool AllowName) {
-  bool IsARMBuiltin = BuiltinID == ARM::BI__builtin_arm_rsr64 ||
-                      BuiltinID == ARM::BI__builtin_arm_wsr64 ||
-                      BuiltinID == ARM::BI__builtin_arm_rsr ||
-                      BuiltinID == ARM::BI__builtin_arm_rsrp ||
-                      BuiltinID == ARM::BI__builtin_arm_wsr ||
-                      BuiltinID == ARM::BI__builtin_arm_wsrp;
-  bool IsAArch64Builtin = BuiltinID == AArch64::BI__builtin_arm_rsr64 ||
-                          BuiltinID == AArch64::BI__builtin_arm_wsr64 ||
-                          BuiltinID == AArch64::BI__builtin_arm_rsr ||
-                          BuiltinID == AArch64::BI__builtin_arm_rsrp ||
-                          BuiltinID == AArch64::BI__builtin_arm_wsr ||
-                          BuiltinID == AArch64::BI__builtin_arm_wsrp;
-  assert((IsARMBuiltin || IsAArch64Builtin) && "Unexpected ARM builtin.");
-
-  // We can't check the value of a dependent argument.
-  Expr *Arg = TheCall->getArg(ArgNum);
-  if (Arg->isTypeDependent() || Arg->isValueDependent())
-    return false;
-
-  // Check if the argument is a string literal.
-  if (!isa<StringLiteral>(Arg->IgnoreParenImpCasts()))
-    return Diag(TheCall->getBeginLoc(), diag::err_expr_not_string_literal)
-           << Arg->getSourceRange();
-
-  // Check the type of special register given.
-  StringRef Reg = cast<StringLiteral>(Arg->IgnoreParenImpCasts())->getString();
-  SmallVector<StringRef, 6> Fields;
-  Reg.split(Fields, ":");
-
-  if (Fields.size() != ExpectedFieldNum && !(AllowName && Fields.size() == 1))
-    return Diag(TheCall->getBeginLoc(), diag::err_arm_invalid_specialreg)
-           << Arg->getSourceRange();
-
-  // If the string is the name of a register then we cannot check that it is
-  // valid here but if the string is of one the forms described in ACLE then we
-  // can check that the supplied fields are integers and within the valid
-  // ranges.
-  if (Fields.size() > 1) {
-    bool FiveFields = Fields.size() == 5;
-
-    bool ValidString = true;
-    if (IsARMBuiltin) {
-      ValidString &= Fields[0].startswith_lower("cp") ||
-                     Fields[0].startswith_lower("p");
-      if (ValidString)
-        Fields[0] =
-          Fields[0].drop_front(Fields[0].startswith_lower("cp") ? 2 : 1);
-
-      ValidString &= Fields[2].startswith_lower("c");
-      if (ValidString)
-        Fields[2] = Fields[2].drop_front(1);
-
-      if (FiveFields) {
-        ValidString &= Fields[3].startswith_lower("c");
-        if (ValidString)
-          Fields[3] = Fields[3].drop_front(1);
-      }
-    }
-
-    SmallVector<int, 5> Ranges;
-    if (FiveFields)
-      Ranges.append({IsAArch64Builtin ? 1 : 15, 7, 15, 15, 7});
-    else
-      Ranges.append({15, 7, 15});
-
-    for (unsigned i=0; i<Fields.size(); ++i) {
-      int IntField;
-      ValidString &= !Fields[i].getAsInteger(10, IntField);
-      ValidString &= (IntField >= 0 && IntField <= Ranges[i]);
-    }
-
-    if (!ValidString)
-      return Diag(TheCall->getBeginLoc(), diag::err_arm_invalid_specialreg)
-             << Arg->getSourceRange();
-  } else if (IsAArch64Builtin && Fields.size() == 1) {
-    // If the register name is one of those that appear in the condition below
-    // and the special register builtin being used is one of the write builtins,
-    // then we require that the argument provided for writing to the register
-    // is an integer constant expression. This is because it will be lowered to
-    // an MSR (immediate) instruction, so we need to know the immediate at
-    // compile time.
-    if (TheCall->getNumArgs() != 2)
-      return false;
-
-    std::string RegLower = Reg.lower();
-    if (RegLower != "spsel" && RegLower != "daifset" && RegLower != "daifclr" &&
-        RegLower != "pan" && RegLower != "uao")
-      return false;
-
-    return SemaBuiltinConstantArgRange(TheCall, 1, 0, 15);
-  }
-
-  return false;
-}
-
-/// SemaBuiltinLongjmp - Handle __builtin_longjmp(void *env[5], int val).
-/// This checks that the target supports __builtin_longjmp and
-/// that val is a constant 1.
-bool Sema::SemaBuiltinLongjmp(CallExpr *TheCall) {
-  if (!Context.getTargetInfo().hasSjLjLowering())
-    return Diag(TheCall->getBeginLoc(), diag::err_builtin_longjmp_unsupported)
-           << SourceRange(TheCall->getBeginLoc(), TheCall->getEndLoc());
-
-  Expr *Arg = TheCall->getArg(1);
-  llvm::APSInt Result;
-
-  // TODO: This is less than ideal. Overload this to take a value.
-  if (SemaBuiltinConstantArg(TheCall, 1, Result))
-    return true;
-
-  if (Result != 1)
-    return Diag(TheCall->getBeginLoc(), diag::err_builtin_longjmp_invalid_val)
-           << SourceRange(Arg->getBeginLoc(), Arg->getEndLoc());
-
-  return false;
-}
-
-/// SemaBuiltinSetjmp - Handle __builtin_setjmp(void *env[5]).
-/// This checks that the target supports __builtin_setjmp.
-bool Sema::SemaBuiltinSetjmp(CallExpr *TheCall) {
-  if (!Context.getTargetInfo().hasSjLjLowering())
-    return Diag(TheCall->getBeginLoc(), diag::err_builtin_setjmp_unsupported)
-           << SourceRange(TheCall->getBeginLoc(), TheCall->getEndLoc());
-  return false;
-}
-
-namespace {
-
-class UncoveredArgHandler {
-  enum { Unknown = -1, AllCovered = -2 };
-
-  signed FirstUncoveredArg = Unknown;
-  SmallVector<const Expr *, 4> DiagnosticExprs;
-
-public:
-  UncoveredArgHandler() = default;
-
-  bool hasUncoveredArg() const {
-    return (FirstUncoveredArg >= 0);
-  }
-
-  unsigned getUncoveredArg() const {
-    assert(hasUncoveredArg() && "no uncovered argument");
-    return FirstUncoveredArg;
-  }
-
-  void setAllCovered() {
-    // A string has been found with all arguments covered, so clear out
-    // the diagnostics.
-    DiagnosticExprs.clear();
-    FirstUncoveredArg = AllCovered;
-  }
-
-  void Update(signed NewFirstUncoveredArg, const Expr *StrExpr) {
-    assert(NewFirstUncoveredArg >= 0 && "Outside range");
-
-    // Don't update if a previous string covers all arguments.
-    if (FirstUncoveredArg == AllCovered)
-      return;
-
-    // UncoveredArgHandler tracks the highest uncovered argument index
-    // and with it all the strings that match this index.
-    if (NewFirstUncoveredArg == FirstUncoveredArg)
-      DiagnosticExprs.push_back(StrExpr);
-    else if (NewFirstUncoveredArg > FirstUncoveredArg) {
-      DiagnosticExprs.clear();
-      DiagnosticExprs.push_back(StrExpr);
-      FirstUncoveredArg = NewFirstUncoveredArg;
-    }
-  }
-
-  void Diagnose(Sema &S, bool IsFunctionCall, const Expr *ArgExpr);
-};
-
-enum StringLiteralCheckType {
-  SLCT_NotALiteral,
-  SLCT_UncheckedLiteral,
-  SLCT_CheckedLiteral
-};
-
-} // namespace
-
-static void sumOffsets(llvm::APSInt &Offset, llvm::APSInt Addend,
-                                     BinaryOperatorKind BinOpKind,
-                                     bool AddendIsRight) {
-  unsigned BitWidth = Offset.getBitWidth();
-  unsigned AddendBitWidth = Addend.getBitWidth();
-  // There might be negative interim results.
-  if (Addend.isUnsigned()) {
-    Addend = Addend.zext(++AddendBitWidth);
-    Addend.setIsSigned(true);
-  }
-  // Adjust the bit width of the APSInts.
-  if (AddendBitWidth > BitWidth) {
-    Offset = Offset.sext(AddendBitWidth);
-    BitWidth = AddendBitWidth;
-  } else if (BitWidth > AddendBitWidth) {
-    Addend = Addend.sext(BitWidth);
-  }
-
-  bool Ov = false;
-  llvm::APSInt ResOffset = Offset;
-  if (BinOpKind == BO_Add)
-    ResOffset = Offset.sadd_ov(Addend, Ov);
-  else {
-    assert(AddendIsRight && BinOpKind == BO_Sub &&
-           "operator must be add or sub with addend on the right");
-    ResOffset = Offset.ssub_ov(Addend, Ov);
-  }
-
-  // We add an offset to a pointer here so we should support an offset as big as
-  // possible.
-  if (Ov) {
-    assert(BitWidth <= std::numeric_limits<unsigned>::max() / 2 &&
-           "index (intermediate) result too big");
-    Offset = Offset.sext(2 * BitWidth);
-    sumOffsets(Offset, Addend, BinOpKind, AddendIsRight);
-    return;
-  }
-
-  Offset = ResOffset;
-}
-
-namespace {
-
-// This is a wrapper class around StringLiteral to support offsetted string
-// literals as format strings. It takes the offset into account when returning
-// the string and its length or the source locations to display notes correctly.
-class FormatStringLiteral {
-  const StringLiteral *FExpr;
-  int64_t Offset;
-
- public:
-  FormatStringLiteral(const StringLiteral *fexpr, int64_t Offset = 0)
-      : FExpr(fexpr), Offset(Offset) {}
-
-  StringRef getString() const {
-    return FExpr->getString().drop_front(Offset);
-  }
-
-  unsigned getByteLength() const {
-    return FExpr->getByteLength() - getCharByteWidth() * Offset;
-  }
-
-  unsigned getLength() const { return FExpr->getLength() - Offset; }
-  unsigned getCharByteWidth() const { return FExpr->getCharByteWidth(); }
-
-  StringLiteral::StringKind getKind() const { return FExpr->getKind(); }
-
-  QualType getType() const { return FExpr->getType(); }
-
-  bool isAscii() const { return FExpr->isAscii(); }
-  bool isWide() const { return FExpr->isWide(); }
-  bool isUTF8() const { return FExpr->isUTF8(); }
-  bool isUTF16() const { return FExpr->isUTF16(); }
-  bool isUTF32() const { return FExpr->isUTF32(); }
-  bool isPascal() const { return FExpr->isPascal(); }
-
-  SourceLocation getLocationOfByte(
-      unsigned ByteNo, const SourceManager &SM, const LangOptions &Features,
-      const TargetInfo &Target, unsigned *StartToken = nullptr,
-      unsigned *StartTokenByteOffset = nullptr) const {
-    return FExpr->getLocationOfByte(ByteNo + Offset, SM, Features, Target,
-                                    StartToken, StartTokenByteOffset);
-  }
-
-  SourceLocation getBeginLoc() const LLVM_READONLY {
-    return FExpr->getBeginLoc().getLocWithOffset(Offset);
-  }
-
-  SourceLocation getEndLoc() const LLVM_READONLY { return FExpr->getEndLoc(); }
-};
-
-}  // namespace
-
-static void CheckFormatString(Sema &S, const FormatStringLiteral *FExpr,
-                              const Expr *OrigFormatExpr,
-                              ArrayRef<const Expr *> Args,
-                              bool HasVAListArg, unsigned format_idx,
-                              unsigned firstDataArg,
-                              Sema::FormatStringType Type,
-                              bool inFunctionCall,
-                              Sema::VariadicCallType CallType,
-                              llvm::SmallBitVector &CheckedVarArgs,
-                              UncoveredArgHandler &UncoveredArg);
-
-// Determine if an expression is a string literal or constant string.
-// If this function returns false on the arguments to a function expecting a
-// format string, we will usually need to emit a warning.
-// True string literals are then checked by CheckFormatString.
-static StringLiteralCheckType
-checkFormatStringExpr(Sema &S, const Expr *E, ArrayRef<const Expr *> Args,
-                      bool HasVAListArg, unsigned format_idx,
-                      unsigned firstDataArg, Sema::FormatStringType Type,
-                      Sema::VariadicCallType CallType, bool InFunctionCall,
-                      llvm::SmallBitVector &CheckedVarArgs,
-                      UncoveredArgHandler &UncoveredArg,
-                      llvm::APSInt Offset) {
-  if (S.isConstantEvaluated())
-    return SLCT_NotALiteral;
- tryAgain:
-  assert(Offset.isSigned() && "invalid offset");
-
-  if (E->isTypeDependent() || E->isValueDependent())
-    return SLCT_NotALiteral;
-
-  E = E->IgnoreParenCasts();
-
-  if (E->isNullPointerConstant(S.Context, Expr::NPC_ValueDependentIsNotNull))
-    // Technically -Wformat-nonliteral does not warn about this case.
-    // The behavior of printf and friends in this case is implementation
-    // dependent.  Ideally if the format string cannot be null then
-    // it should have a 'nonnull' attribute in the function prototype.
-    return SLCT_UncheckedLiteral;
-
-  switch (E->getStmtClass()) {
-  case Stmt::BinaryConditionalOperatorClass:
-  case Stmt::ConditionalOperatorClass: {
-    // The expression is a literal if both sub-expressions were, and it was
-    // completely checked only if both sub-expressions were checked.
-    const AbstractConditionalOperator *C =
-        cast<AbstractConditionalOperator>(E);
-
-    // Determine whether it is necessary to check both sub-expressions, for
-    // example, because the condition expression is a constant that can be
-    // evaluated at compile time.
-    bool CheckLeft = true, CheckRight = true;
-
-    bool Cond;
-    if (C->getCond()->EvaluateAsBooleanCondition(Cond, S.getASTContext(),
-                                                 S.isConstantEvaluated())) {
-      if (Cond)
-        CheckRight = false;
-      else
-        CheckLeft = false;
-    }
-
-    // We need to maintain the offsets for the right and the left hand side
-    // separately to check if every possible indexed expression is a valid
-    // string literal. They might have different offsets for different string
-    // literals in the end.
-    StringLiteralCheckType Left;
-    if (!CheckLeft)
-      Left = SLCT_UncheckedLiteral;
-    else {
-      Left = checkFormatStringExpr(S, C->getTrueExpr(), Args,
-                                   HasVAListArg, format_idx, firstDataArg,
-                                   Type, CallType, InFunctionCall,
-                                   CheckedVarArgs, UncoveredArg, Offset);
-      if (Left == SLCT_NotALiteral || !CheckRight) {
-        return Left;
-      }
-    }
-
-    StringLiteralCheckType Right =
-        checkFormatStringExpr(S, C->getFalseExpr(), Args,
-                              HasVAListArg, format_idx, firstDataArg,
-                              Type, CallType, InFunctionCall, CheckedVarArgs,
-                              UncoveredArg, Offset);
-
-    return (CheckLeft && Left < Right) ? Left : Right;
-  }
-
-  case Stmt::ImplicitCastExprClass:
-    E = cast<ImplicitCastExpr>(E)->getSubExpr();
-    goto tryAgain;
-
-  case Stmt::OpaqueValueExprClass:
-    if (const Expr *src = cast<OpaqueValueExpr>(E)->getSourceExpr()) {
-      E = src;
-      goto tryAgain;
-    }
-    return SLCT_NotALiteral;
-
-  case Stmt::PredefinedExprClass:
-    // While __func__, etc., are technically not string literals, they
-    // cannot contain format specifiers and thus are not a security
-    // liability.
-    return SLCT_UncheckedLiteral;
-
-  case Stmt::DeclRefExprClass: {
-    const DeclRefExpr *DR = cast<DeclRefExpr>(E);
-
-    // As an exception, do not flag errors for variables binding to
-    // const string literals.
-    if (const VarDecl *VD = dyn_cast<VarDecl>(DR->getDecl())) {
-      bool isConstant = false;
-      QualType T = DR->getType();
-
-      if (const ArrayType *AT = S.Context.getAsArrayType(T)) {
-        isConstant = AT->getElementType().isConstant(S.Context);
-      } else if (const PointerType *PT = T->getAs<PointerType>()) {
-        isConstant = T.isConstant(S.Context) &&
-                     PT->getPointeeType().isConstant(S.Context);
-      } else if (T->isObjCObjectPointerType()) {
-        // In ObjC, there is usually no "const ObjectPointer" type,
-        // so don't check if the pointee type is constant.
-        isConstant = T.isConstant(S.Context);
-      }
-
-      if (isConstant) {
-        if (const Expr *Init = VD->getAnyInitializer()) {
-          // Look through initializers like const char c[] = { "foo" }
-          if (const InitListExpr *InitList = dyn_cast<InitListExpr>(Init)) {
-            if (InitList->isStringLiteralInit())
-              Init = InitList->getInit(0)->IgnoreParenImpCasts();
-          }
-          return checkFormatStringExpr(S, Init, Args,
-                                       HasVAListArg, format_idx,
-                                       firstDataArg, Type, CallType,
-                                       /*InFunctionCall*/ false, CheckedVarArgs,
-                                       UncoveredArg, Offset);
-        }
-      }
-
-      // For vprintf* functions (i.e., HasVAListArg==true), we add a
-      // special check to see if the format string is a function parameter
-      // of the function calling the printf function.  If the function
-      // has an attribute indicating it is a printf-like function, then we
-      // should suppress warnings concerning non-literals being used in a call
-      // to a vprintf function.  For example:
-      //
-      // void
-      // logmessage(char const *fmt __attribute__ (format (printf, 1, 2)), ...){
-      //      va_list ap;
-      //      va_start(ap, fmt);
-      //      vprintf(fmt, ap);  // Do NOT emit a warning about "fmt".
-      //      ...
-      // }
-      if (HasVAListArg) {
-        if (const ParmVarDecl *PV = dyn_cast<ParmVarDecl>(VD)) {
-          if (const NamedDecl *ND = dyn_cast<NamedDecl>(PV->getDeclContext())) {
-            int PVIndex = PV->getFunctionScopeIndex() + 1;
-            for (const auto *PVFormat : ND->specific_attrs<FormatAttr>()) {
-              // adjust for implicit parameter
-              if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(ND))
-                if (MD->isInstance())
-                  ++PVIndex;
-              // We also check if the formats are compatible.
-              // We can't pass a 'scanf' string to a 'printf' function.
-              if (PVIndex == PVFormat->getFormatIdx() &&
-                  Type == S.GetFormatStringType(PVFormat))
-                return SLCT_UncheckedLiteral;
-            }
-          }
-        }
-      }
-    }
-
-    return SLCT_NotALiteral;
-  }
-
-  case Stmt::CallExprClass:
-  case Stmt::CXXMemberCallExprClass: {
-    const CallExpr *CE = cast<CallExpr>(E);
-    if (const NamedDecl *ND = dyn_cast_or_null<NamedDecl>(CE->getCalleeDecl())) {
-      bool IsFirst = true;
-      StringLiteralCheckType CommonResult;
-      for (const auto *FA : ND->specific_attrs<FormatArgAttr>()) {
-        const Expr *Arg = CE->getArg(FA->getFormatIdx().getASTIndex());
-        StringLiteralCheckType Result = checkFormatStringExpr(
-            S, Arg, Args, HasVAListArg, format_idx, firstDataArg, Type,
-            CallType, InFunctionCall, CheckedVarArgs, UncoveredArg, Offset);
-        if (IsFirst) {
-          CommonResult = Result;
-          IsFirst = false;
-        }
-      }
-      if (!IsFirst)
-        return CommonResult;
-
-      if (const auto *FD = dyn_cast<FunctionDecl>(ND)) {
-        unsigned BuiltinID = FD->getBuiltinID();
-        if (BuiltinID == Builtin::BI__builtin___CFStringMakeConstantString ||
-            BuiltinID == Builtin::BI__builtin___NSStringMakeConstantString) {
-          const Expr *Arg = CE->getArg(0);
-          return checkFormatStringExpr(S, Arg, Args,
-                                       HasVAListArg, format_idx,
-                                       firstDataArg, Type, CallType,
-                                       InFunctionCall, CheckedVarArgs,
-                                       UncoveredArg, Offset);
-        }
-      }
-    }
-
-    return SLCT_NotALiteral;
-  }
-  case Stmt::ObjCMessageExprClass: {
-    const auto *ME = cast<ObjCMessageExpr>(E);
-    if (const auto *ND = ME->getMethodDecl()) {
-      if (const auto *FA = ND->getAttr<FormatArgAttr>()) {
-        const Expr *Arg = ME->getArg(FA->getFormatIdx().getASTIndex());
-        return checkFormatStringExpr(
-            S, Arg, Args, HasVAListArg, format_idx, firstDataArg, Type,
-            CallType, InFunctionCall, CheckedVarArgs, UncoveredArg, Offset);
-      }
-    }
-
-    return SLCT_NotALiteral;
-  }
-  case Stmt::ObjCStringLiteralClass:
-  case Stmt::StringLiteralClass: {
-    const StringLiteral *StrE = nullptr;
-
-    if (const ObjCStringLiteral *ObjCFExpr = dyn_cast<ObjCStringLiteral>(E))
-      StrE = ObjCFExpr->getString();
-    else
-      StrE = cast<StringLiteral>(E);
-
-    if (StrE) {
-      if (Offset.isNegative() || Offset > StrE->getLength()) {
-        // TODO: It would be better to have an explicit warning for out of
-        // bounds literals.
-        return SLCT_NotALiteral;
-      }
-      FormatStringLiteral FStr(StrE, Offset.sextOrTrunc(64).getSExtValue());
-      CheckFormatString(S, &FStr, E, Args, HasVAListArg, format_idx,
-                        firstDataArg, Type, InFunctionCall, CallType,
-                        CheckedVarArgs, UncoveredArg);
-      return SLCT_CheckedLiteral;
-    }
-
-    return SLCT_NotALiteral;
-  }
-  case Stmt::BinaryOperatorClass: {
-    const BinaryOperator *BinOp = cast<BinaryOperator>(E);
-
-    // A string literal + an int offset is still a string literal.
-    if (BinOp->isAdditiveOp()) {
-      Expr::EvalResult LResult, RResult;
-
-      bool LIsInt = BinOp->getLHS()->EvaluateAsInt(
-          LResult, S.Context, Expr::SE_NoSideEffects, S.isConstantEvaluated());
-      bool RIsInt = BinOp->getRHS()->EvaluateAsInt(
-          RResult, S.Context, Expr::SE_NoSideEffects, S.isConstantEvaluated());
-
-      if (LIsInt != RIsInt) {
-        BinaryOperatorKind BinOpKind = BinOp->getOpcode();
-
-        if (LIsInt) {
-          if (BinOpKind == BO_Add) {
-            sumOffsets(Offset, LResult.Val.getInt(), BinOpKind, RIsInt);
-            E = BinOp->getRHS();
-            goto tryAgain;
-          }
-        } else {
-          sumOffsets(Offset, RResult.Val.getInt(), BinOpKind, RIsInt);
-          E = BinOp->getLHS();
-          goto tryAgain;
-        }
-      }
-    }
-
-    return SLCT_NotALiteral;
-  }
-  case Stmt::UnaryOperatorClass: {
-    const UnaryOperator *UnaOp = cast<UnaryOperator>(E);
-    auto ASE = dyn_cast<ArraySubscriptExpr>(UnaOp->getSubExpr());
-    if (UnaOp->getOpcode() == UO_AddrOf && ASE) {
-      Expr::EvalResult IndexResult;
-      if (ASE->getRHS()->EvaluateAsInt(IndexResult, S.Context,
-                                       Expr::SE_NoSideEffects,
-                                       S.isConstantEvaluated())) {
-        sumOffsets(Offset, IndexResult.Val.getInt(), BO_Add,
-                   /*RHS is int*/ true);
-        E = ASE->getBase();
-        goto tryAgain;
-      }
-    }
-
-    return SLCT_NotALiteral;
-  }
-
-  default:
-    return SLCT_NotALiteral;
-  }
-}
-
-Sema::FormatStringType Sema::GetFormatStringType(const FormatAttr *Format) {
-  return llvm::StringSwitch<FormatStringType>(Format->getType()->getName())
-      .Case("scanf", FST_Scanf)
-      .Cases("printf", "printf0", FST_Printf)
-      .Cases("NSString", "CFString", FST_NSString)
-      .Case("strftime", FST_Strftime)
-      .Case("strfmon", FST_Strfmon)
-      .Cases("kprintf", "cmn_err", "vcmn_err", "zcmn_err", FST_Kprintf)
-      .Case("freebsd_kprintf", FST_FreeBSDKPrintf)
-      .Case("os_trace", FST_OSLog)
-      .Case("os_log", FST_OSLog)
-      .Default(FST_Unknown);
-}
-
-/// CheckFormatArguments - Check calls to printf and scanf (and similar
-/// functions) for correct use of format strings.
-/// Returns true if a format string has been fully checked.
-bool Sema::CheckFormatArguments(const FormatAttr *Format,
-                                ArrayRef<const Expr *> Args,
-                                bool IsCXXMember,
-                                VariadicCallType CallType,
-                                SourceLocation Loc, SourceRange Range,
-                                llvm::SmallBitVector &CheckedVarArgs) {
-  FormatStringInfo FSI;
-  if (getFormatStringInfo(Format, IsCXXMember, &FSI))
-    return CheckFormatArguments(Args, FSI.HasVAListArg, FSI.FormatIdx,
-                                FSI.FirstDataArg, GetFormatStringType(Format),
-                                CallType, Loc, Range, CheckedVarArgs);
-  return false;
-}
-
-bool Sema::CheckFormatArguments(ArrayRef<const Expr *> Args,
-                                bool HasVAListArg, unsigned format_idx,
-                                unsigned firstDataArg, FormatStringType Type,
-                                VariadicCallType CallType,
-                                SourceLocation Loc, SourceRange Range,
-                                llvm::SmallBitVector &CheckedVarArgs) {
-  // CHECK: printf/scanf-like function is called with no format string.
-  if (format_idx >= Args.size()) {
-    Diag(Loc, diag::warn_missing_format_string) << Range;
-    return false;
-  }
-
-  const Expr *OrigFormatExpr = Args[format_idx]->IgnoreParenCasts();
-
-  // CHECK: format string is not a string literal.
-  //
-  // Dynamically generated format strings are difficult to
-  // automatically vet at compile time.  Requiring that format strings
-  // are string literals: (1) permits the checking of format strings by
-  // the compiler and thereby (2) can practically remove the source of
-  // many format string exploits.
-
-  // Format string can be either ObjC string (e.g. @"%d") or
-  // C string (e.g. "%d")
-  // ObjC string uses the same format specifiers as C string, so we can use
-  // the same format string checking logic for both ObjC and C strings.
-  UncoveredArgHandler UncoveredArg;
-  StringLiteralCheckType CT =
-      checkFormatStringExpr(*this, OrigFormatExpr, Args, HasVAListArg,
-                            format_idx, firstDataArg, Type, CallType,
-                            /*IsFunctionCall*/ true, CheckedVarArgs,
-                            UncoveredArg,
-                            /*no string offset*/ llvm::APSInt(64, false) = 0);
-
-  // Generate a diagnostic where an uncovered argument is detected.
-  if (UncoveredArg.hasUncoveredArg()) {
-    unsigned ArgIdx = UncoveredArg.getUncoveredArg() + firstDataArg;
-    assert(ArgIdx < Args.size() && "ArgIdx outside bounds");
-    UncoveredArg.Diagnose(*this, /*IsFunctionCall*/true, Args[ArgIdx]);
-  }
-
-  if (CT != SLCT_NotALiteral)
-    // Literal format string found, check done!
-    return CT == SLCT_CheckedLiteral;
-
-  // Strftime is particular as it always uses a single 'time' argument,
-  // so it is safe to pass a non-literal string.
-  if (Type == FST_Strftime)
-    return false;
-
-  // Do not emit diag when the string param is a macro expansion and the
-  // format is either NSString or CFString. This is a hack to prevent
-  // diag when using the NSLocalizedString and CFCopyLocalizedString macros
-  // which are usually used in place of NS and CF string literals.
-  SourceLocation FormatLoc = Args[format_idx]->getBeginLoc();
-  if (Type == FST_NSString && SourceMgr.isInSystemMacro(FormatLoc))
-    return false;
-
-  // If there are no arguments specified, warn with -Wformat-security, otherwise
-  // warn only with -Wformat-nonliteral.
-  if (Args.size() == firstDataArg) {
-    Diag(FormatLoc, diag::warn_format_nonliteral_noargs)
-      << OrigFormatExpr->getSourceRange();
-    switch (Type) {
-    default:
-      break;
-    case FST_Kprintf:
-    case FST_FreeBSDKPrintf:
-    case FST_Printf:
-      Diag(FormatLoc, diag::note_format_security_fixit)
-        << FixItHint::CreateInsertion(FormatLoc, "\"%s\", ");
-      break;
-    case FST_NSString:
-      Diag(FormatLoc, diag::note_format_security_fixit)
-        << FixItHint::CreateInsertion(FormatLoc, "@\"%@\", ");
-      break;
-    }
-  } else {
-    Diag(FormatLoc, diag::warn_format_nonliteral)
-      << OrigFormatExpr->getSourceRange();
-  }
-  return false;
-}
-
-namespace {
-
-class CheckFormatHandler : public analyze_format_string::FormatStringHandler {
-protected:
-  Sema &S;
-  const FormatStringLiteral *FExpr;
-  const Expr *OrigFormatExpr;
-  const Sema::FormatStringType FSType;
-  const unsigned FirstDataArg;
-  const unsigned NumDataArgs;
-  const char *Beg; // Start of format string.
-  const bool HasVAListArg;
-  ArrayRef<const Expr *> Args;
-  unsigned FormatIdx;
-  llvm::SmallBitVector CoveredArgs;
-  bool usesPositionalArgs = false;
-  bool atFirstArg = true;
-  bool inFunctionCall;
-  Sema::VariadicCallType CallType;
-  llvm::SmallBitVector &CheckedVarArgs;
-  UncoveredArgHandler &UncoveredArg;
-
-public:
-  CheckFormatHandler(Sema &s, const FormatStringLiteral *fexpr,
-                     const Expr *origFormatExpr,
-                     const Sema::FormatStringType type, unsigned firstDataArg,
-                     unsigned numDataArgs, const char *beg, bool hasVAListArg,
-                     ArrayRef<const Expr *> Args, unsigned formatIdx,
-                     bool inFunctionCall, Sema::VariadicCallType callType,
-                     llvm::SmallBitVector &CheckedVarArgs,
-                     UncoveredArgHandler &UncoveredArg)
-      : S(s), FExpr(fexpr), OrigFormatExpr(origFormatExpr), FSType(type),
-        FirstDataArg(firstDataArg), NumDataArgs(numDataArgs), Beg(beg),
-        HasVAListArg(hasVAListArg), Args(Args), FormatIdx(formatIdx),
-        inFunctionCall(inFunctionCall), CallType(callType),
-        CheckedVarArgs(CheckedVarArgs), UncoveredArg(UncoveredArg) {
-    CoveredArgs.resize(numDataArgs);
-    CoveredArgs.reset();
-  }
-
-  void DoneProcessing();
-
-  void HandleIncompleteSpecifier(const char *startSpecifier,
-                                 unsigned specifierLen) override;
-
-  void HandleInvalidLengthModifier(
-                           const analyze_format_string::FormatSpecifier &FS,
-                           const analyze_format_string::ConversionSpecifier &CS,
-                           const char *startSpecifier, unsigned specifierLen,
-                           unsigned DiagID);
-
-  void HandleNonStandardLengthModifier(
-                    const analyze_format_string::FormatSpecifier &FS,
-                    const char *startSpecifier, unsigned specifierLen);
-
-  void HandleNonStandardConversionSpecifier(
-                    const analyze_format_string::ConversionSpecifier &CS,
-                    const char *startSpecifier, unsigned specifierLen);
-
-  void HandlePosition(const char *startPos, unsigned posLen) override;
-
-  void HandleInvalidPosition(const char *startSpecifier,
-                             unsigned specifierLen,
-                             analyze_format_string::PositionContext p) override;
-
-  void HandleZeroPosition(const char *startPos, unsigned posLen) override;
-
-  void HandleNullChar(const char *nullCharacter) override;
-
-  template <typename Range>
-  static void
-  EmitFormatDiagnostic(Sema &S, bool inFunctionCall, const Expr *ArgumentExpr,
-                       const PartialDiagnostic &PDiag, SourceLocation StringLoc,
-                       bool IsStringLocation, Range StringRange,
-                       ArrayRef<FixItHint> Fixit = None);
-
-protected:
-  bool HandleInvalidConversionSpecifier(unsigned argIndex, SourceLocation Loc,
-                                        const char *startSpec,
-                                        unsigned specifierLen,
-                                        const char *csStart, unsigned csLen);
-
-  void HandlePositionalNonpositionalArgs(SourceLocation Loc,
-                                         const char *startSpec,
-                                         unsigned specifierLen);
-
-  SourceRange getFormatStringRange();
-  CharSourceRange getSpecifierRange(const char *startSpecifier,
-                                    unsigned specifierLen);
-  SourceLocation getLocationOfByte(const char *x);
-
-  const Expr *getDataArg(unsigned i) const;
-
-  bool CheckNumArgs(const analyze_format_string::FormatSpecifier &FS,
-                    const analyze_format_string::ConversionSpecifier &CS,
-                    const char *startSpecifier, unsigned specifierLen,
-                    unsigned argIndex);
-
-  template <typename Range>
-  void EmitFormatDiagnostic(PartialDiagnostic PDiag, SourceLocation StringLoc,
-                            bool IsStringLocation, Range StringRange,
-                            ArrayRef<FixItHint> Fixit = None);
-};
-
-} // namespace
-
-SourceRange CheckFormatHandler::getFormatStringRange() {
-  return OrigFormatExpr->getSourceRange();
-}
-
-CharSourceRange CheckFormatHandler::
-getSpecifierRange(const char *startSpecifier, unsigned specifierLen) {
-  SourceLocation Start = getLocationOfByte(startSpecifier);
-  SourceLocation End   = getLocationOfByte(startSpecifier + specifierLen - 1);
-
-  // Advance the end SourceLocation by one due to half-open ranges.
-  End = End.getLocWithOffset(1);
-
-  return CharSourceRange::getCharRange(Start, End);
-}
-
-SourceLocation CheckFormatHandler::getLocationOfByte(const char *x) {
-  return FExpr->getLocationOfByte(x - Beg, S.getSourceManager(),
-                                  S.getLangOpts(), S.Context.getTargetInfo());
-}
-
-void CheckFormatHandler::HandleIncompleteSpecifier(const char *startSpecifier,
-                                                   unsigned specifierLen){
-  EmitFormatDiagnostic(S.PDiag(diag::warn_printf_incomplete_specifier),
-                       getLocationOfByte(startSpecifier),
-                       /*IsStringLocation*/true,
-                       getSpecifierRange(startSpecifier, specifierLen));
-}
-
-void CheckFormatHandler::HandleInvalidLengthModifier(
-    const analyze_format_string::FormatSpecifier &FS,
-    const analyze_format_string::ConversionSpecifier &CS,
-    const char *startSpecifier, unsigned specifierLen, unsigned DiagID) {
-  using namespace analyze_format_string;
-
-  const LengthModifier &LM = FS.getLengthModifier();
-  CharSourceRange LMRange = getSpecifierRange(LM.getStart(), LM.getLength());
-
-  // See if we know how to fix this length modifier.
-  Optional<LengthModifier> FixedLM = FS.getCorrectedLengthModifier();
-  if (FixedLM) {
-    EmitFormatDiagnostic(S.PDiag(DiagID) << LM.toString() << CS.toString(),
-                         getLocationOfByte(LM.getStart()),
-                         /*IsStringLocation*/true,
-                         getSpecifierRange(startSpecifier, specifierLen));
-
-    S.Diag(getLocationOfByte(LM.getStart()), diag::note_format_fix_specifier)
-      << FixedLM->toString()
-      << FixItHint::CreateReplacement(LMRange, FixedLM->toString());
-
-  } else {
-    FixItHint Hint;
-    if (DiagID == diag::warn_format_nonsensical_length)
-      Hint = FixItHint::CreateRemoval(LMRange);
-
-    EmitFormatDiagnostic(S.PDiag(DiagID) << LM.toString() << CS.toString(),
-                         getLocationOfByte(LM.getStart()),
-                         /*IsStringLocation*/true,
-                         getSpecifierRange(startSpecifier, specifierLen),
-                         Hint);
-  }
-}
-
-void CheckFormatHandler::HandleNonStandardLengthModifier(
-    const analyze_format_string::FormatSpecifier &FS,
-    const char *startSpecifier, unsigned specifierLen) {
-  using namespace analyze_format_string;
-
-  const LengthModifier &LM = FS.getLengthModifier();
-  CharSourceRange LMRange = getSpecifierRange(LM.getStart(), LM.getLength());
-
-  // See if we know how to fix this length modifier.
-  Optional<LengthModifier> FixedLM = FS.getCorrectedLengthModifier();
-  if (FixedLM) {
-    EmitFormatDiagnostic(S.PDiag(diag::warn_format_non_standard)
-                           << LM.toString() << 0,
-                         getLocationOfByte(LM.getStart()),
-                         /*IsStringLocation*/true,
-                         getSpecifierRange(startSpecifier, specifierLen));
-
-    S.Diag(getLocationOfByte(LM.getStart()), diag::note_format_fix_specifier)
-      << FixedLM->toString()
-      << FixItHint::CreateReplacement(LMRange, FixedLM->toString());
-
-  } else {
-    EmitFormatDiagnostic(S.PDiag(diag::warn_format_non_standard)
-                           << LM.toString() << 0,
-                         getLocationOfByte(LM.getStart()),
-                         /*IsStringLocation*/true,
-                         getSpecifierRange(startSpecifier, specifierLen));
-  }
-}
-
-void CheckFormatHandler::HandleNonStandardConversionSpecifier(
-    const analyze_format_string::ConversionSpecifier &CS,
-    const char *startSpecifier, unsigned specifierLen) {
-  using namespace analyze_format_string;
-
-  // See if we know how to fix this conversion specifier.
-  Optional<ConversionSpecifier> FixedCS = CS.getStandardSpecifier();
-  if (FixedCS) {
-    EmitFormatDiagnostic(S.PDiag(diag::warn_format_non_standard)
-                          << CS.toString() << /*conversion specifier*/1,
-                         getLocationOfByte(CS.getStart()),
-                         /*IsStringLocation*/true,
-                         getSpecifierRange(startSpecifier, specifierLen));
-
-    CharSourceRange CSRange = getSpecifierRange(CS.getStart(), CS.getLength());
-    S.Diag(getLocationOfByte(CS.getStart()), diag::note_format_fix_specifier)
-      << FixedCS->toString()
-      << FixItHint::CreateReplacement(CSRange, FixedCS->toString());
-  } else {
-    EmitFormatDiagnostic(S.PDiag(diag::warn_format_non_standard)
-                          << CS.toString() << /*conversion specifier*/1,
-                         getLocationOfByte(CS.getStart()),
-                         /*IsStringLocation*/true,
-                         getSpecifierRange(startSpecifier, specifierLen));
-  }
-}
-
-void CheckFormatHandler::HandlePosition(const char *startPos,
-                                        unsigned posLen) {
-  EmitFormatDiagnostic(S.PDiag(diag::warn_format_non_standard_positional_arg),
-                               getLocationOfByte(startPos),
-                               /*IsStringLocation*/true,
-                               getSpecifierRange(startPos, posLen));
-}
-
-void
-CheckFormatHandler::HandleInvalidPosition(const char *startPos, unsigned posLen,
-                                     analyze_format_string::PositionContext p) {
-  EmitFormatDiagnostic(S.PDiag(diag::warn_format_invalid_positional_specifier)
-                         << (unsigned) p,
-                       getLocationOfByte(startPos), /*IsStringLocation*/true,
-                       getSpecifierRange(startPos, posLen));
-}
-
-void CheckFormatHandler::HandleZeroPosition(const char *startPos,
-                                            unsigned posLen) {
-  EmitFormatDiagnostic(S.PDiag(diag::warn_format_zero_positional_specifier),
-                               getLocationOfByte(startPos),
-                               /*IsStringLocation*/true,
-                               getSpecifierRange(startPos, posLen));
-}
-
-void CheckFormatHandler::HandleNullChar(const char *nullCharacter) {
-  if (!isa<ObjCStringLiteral>(OrigFormatExpr)) {
-    // The presence of a null character is likely an error.
-    EmitFormatDiagnostic(
-      S.PDiag(diag::warn_printf_format_string_contains_null_char),
-      getLocationOfByte(nullCharacter), /*IsStringLocation*/true,
-      getFormatStringRange());
-  }
-}
-
-// Note that this may return NULL if there was an error parsing or building
-// one of the argument expressions.
-const Expr *CheckFormatHandler::getDataArg(unsigned i) const {
-  return Args[FirstDataArg + i];
-}
-
-void CheckFormatHandler::DoneProcessing() {
-  // Does the number of data arguments exceed the number of
-  // format conversions in the format string?
-  if (!HasVAListArg) {
-      // Find any arguments that weren't covered.
-    CoveredArgs.flip();
-    signed notCoveredArg = CoveredArgs.find_first();
-    if (notCoveredArg >= 0) {
-      assert((unsigned)notCoveredArg < NumDataArgs);
-      UncoveredArg.Update(notCoveredArg, OrigFormatExpr);
-    } else {
-      UncoveredArg.setAllCovered();
-    }
-  }
-}
-
-void UncoveredArgHandler::Diagnose(Sema &S, bool IsFunctionCall,
-                                   const Expr *ArgExpr) {
-  assert(hasUncoveredArg() && DiagnosticExprs.size() > 0 &&
-         "Invalid state");
-
-  if (!ArgExpr)
-    return;
-
-  SourceLocation Loc = ArgExpr->getBeginLoc();
-
-  if (S.getSourceManager().isInSystemMacro(Loc))
-    return;
-
-  PartialDiagnostic PDiag = S.PDiag(diag::warn_printf_data_arg_not_used);
-  for (auto E : DiagnosticExprs)
-    PDiag << E->getSourceRange();
-
-  CheckFormatHandler::EmitFormatDiagnostic(
-                                  S, IsFunctionCall, DiagnosticExprs[0],
-                                  PDiag, Loc, /*IsStringLocation*/false,
-                                  DiagnosticExprs[0]->getSourceRange());
-}
-
-bool
-CheckFormatHandler::HandleInvalidConversionSpecifier(unsigned argIndex,
-                                                     SourceLocation Loc,
-                                                     const char *startSpec,
-                                                     unsigned specifierLen,
-                                                     const char *csStart,
-                                                     unsigned csLen) {
-  bool keepGoing = true;
-  if (argIndex < NumDataArgs) {
-    // Consider the argument coverered, even though the specifier doesn't
-    // make sense.
-    CoveredArgs.set(argIndex);
-  }
-  else {
-    // If argIndex exceeds the number of data arguments we
-    // don't issue a warning because that is just a cascade of warnings (and
-    // they may have intended '%%' anyway). We don't want to continue processing
-    // the format string after this point, however, as we will like just get
-    // gibberish when trying to match arguments.
-    keepGoing = false;
-  }
-
-  StringRef Specifier(csStart, csLen);
-
-  // If the specifier in non-printable, it could be the first byte of a UTF-8
-  // sequence. In that case, print the UTF-8 code point. If not, print the byte
-  // hex value.
-  std::string CodePointStr;
-  if (!llvm::sys::locale::isPrint(*csStart)) {
-    llvm::UTF32 CodePoint;
-    const llvm::UTF8 **B = reinterpret_cast<const llvm::UTF8 **>(&csStart);
-    const llvm::UTF8 *E =
-        reinterpret_cast<const llvm::UTF8 *>(csStart + csLen);
-    llvm::ConversionResult Result =
-        llvm::convertUTF8Sequence(B, E, &CodePoint, llvm::strictConversion);
-
-    if (Result != llvm::conversionOK) {
-      unsigned char FirstChar = *csStart;
-      CodePoint = (llvm::UTF32)FirstChar;
-    }
-
-    llvm::raw_string_ostream OS(CodePointStr);
-    if (CodePoint < 256)
-      OS << "\\x" << llvm::format("%02x", CodePoint);
-    else if (CodePoint <= 0xFFFF)
-      OS << "\\u" << llvm::format("%04x", CodePoint);
-    else
-      OS << "\\U" << llvm::format("%08x", CodePoint);
-    OS.flush();
-    Specifier = CodePointStr;
-  }
-
-  EmitFormatDiagnostic(
-      S.PDiag(diag::warn_format_invalid_conversion) << Specifier, Loc,
-      /*IsStringLocation*/ true, getSpecifierRange(startSpec, specifierLen));
-
-  return keepGoing;
-}
-
-void
-CheckFormatHandler::HandlePositionalNonpositionalArgs(SourceLocation Loc,
-                                                      const char *startSpec,
-                                                      unsigned specifierLen) {
-  EmitFormatDiagnostic(
-    S.PDiag(diag::warn_format_mix_positional_nonpositional_args),
-    Loc, /*isStringLoc*/true, getSpecifierRange(startSpec, specifierLen));
-}
-
-bool
-CheckFormatHandler::CheckNumArgs(
-  const analyze_format_string::FormatSpecifier &FS,
-  const analyze_format_string::ConversionSpecifier &CS,
-  const char *startSpecifier, unsigned specifierLen, unsigned argIndex) {
-
-  if (argIndex >= NumDataArgs) {
-    PartialDiagnostic PDiag = FS.usesPositionalArg()
-      ? (S.PDiag(diag::warn_printf_positional_arg_exceeds_data_args)
-           << (argIndex+1) << NumDataArgs)
-      : S.PDiag(diag::warn_printf_insufficient_data_args);
-    EmitFormatDiagnostic(
-      PDiag, getLocationOfByte(CS.getStart()), /*IsStringLocation*/true,
-      getSpecifierRange(startSpecifier, specifierLen));
-
-    // Since more arguments than conversion tokens are given, by extension
-    // all arguments are covered, so mark this as so.
-    UncoveredArg.setAllCovered();
-    return false;
-  }
-  return true;
-}
-
-template<typename Range>
-void CheckFormatHandler::EmitFormatDiagnostic(PartialDiagnostic PDiag,
-                                              SourceLocation Loc,
-                                              bool IsStringLocation,
-                                              Range StringRange,
-                                              ArrayRef<FixItHint> FixIt) {
-  EmitFormatDiagnostic(S, inFunctionCall, Args[FormatIdx], PDiag,
-                       Loc, IsStringLocation, StringRange, FixIt);
-}
-
-/// If the format string is not within the function call, emit a note
-/// so that the function call and string are in diagnostic messages.
-///
-/// \param InFunctionCall if true, the format string is within the function
-/// call and only one diagnostic message will be produced.  Otherwise, an
-/// extra note will be emitted pointing to location of the format string.
-///
-/// \param ArgumentExpr the expression that is passed as the format string
-/// argument in the function call.  Used for getting locations when two
-/// diagnostics are emitted.
-///
-/// \param PDiag the callee should already have provided any strings for the
-/// diagnostic message.  This function only adds locations and fixits
-/// to diagnostics.
-///
-/// \param Loc primary location for diagnostic.  If two diagnostics are
-/// required, one will be at Loc and a new SourceLocation will be created for
-/// the other one.
-///
-/// \param IsStringLocation if true, Loc points to the format string should be
-/// used for the note.  Otherwise, Loc points to the argument list and will
-/// be used with PDiag.
-///
-/// \param StringRange some or all of the string to highlight.  This is
-/// templated so it can accept either a CharSourceRange or a SourceRange.
-///
-/// \param FixIt optional fix it hint for the format string.
-template <typename Range>
-void CheckFormatHandler::EmitFormatDiagnostic(
-    Sema &S, bool InFunctionCall, const Expr *ArgumentExpr,
-    const PartialDiagnostic &PDiag, SourceLocation Loc, bool IsStringLocation,
-    Range StringRange, ArrayRef<FixItHint> FixIt) {
-  if (InFunctionCall) {
-    const Sema::SemaDiagnosticBuilder &D = S.Diag(Loc, PDiag);
-    D << StringRange;
-    D << FixIt;
-  } else {
-    S.Diag(IsStringLocation ? ArgumentExpr->getExprLoc() : Loc, PDiag)
-      << ArgumentExpr->getSourceRange();
-
-    const Sema::SemaDiagnosticBuilder &Note =
-      S.Diag(IsStringLocation ? Loc : StringRange.getBegin(),
-             diag::note_format_string_defined);
-
-    Note << StringRange;
-    Note << FixIt;
-  }
-}
-
-//===--- CHECK: Printf format string checking ------------------------------===//
-
-namespace {
-
-class CheckPrintfHandler : public CheckFormatHandler {
-public:
-  CheckPrintfHandler(Sema &s, const FormatStringLiteral *fexpr,
-                     const Expr *origFormatExpr,
-                     const Sema::FormatStringType type, unsigned firstDataArg,
-                     unsigned numDataArgs, bool isObjC, const char *beg,
-                     bool hasVAListArg, ArrayRef<const Expr *> Args,
-                     unsigned formatIdx, bool inFunctionCall,
-                     Sema::VariadicCallType CallType,
-                     llvm::SmallBitVector &CheckedVarArgs,
-                     UncoveredArgHandler &UncoveredArg)
-      : CheckFormatHandler(s, fexpr, origFormatExpr, type, firstDataArg,
-                           numDataArgs, beg, hasVAListArg, Args, formatIdx,
-                           inFunctionCall, CallType, CheckedVarArgs,
-                           UncoveredArg) {}
-
-  bool isObjCContext() const { return FSType == Sema::FST_NSString; }
-
-  /// Returns true if '%@' specifiers are allowed in the format string.
-  bool allowsObjCArg() const {
-    return FSType == Sema::FST_NSString || FSType == Sema::FST_OSLog ||
-           FSType == Sema::FST_OSTrace;
-  }
-
-  bool HandleInvalidPrintfConversionSpecifier(
-                                      const analyze_printf::PrintfSpecifier &FS,
-                                      const char *startSpecifier,
-                                      unsigned specifierLen) override;
-
-  void handleInvalidMaskType(StringRef MaskType) override;
-
-  bool HandlePrintfSpecifier(const analyze_printf::PrintfSpecifier &FS,
-                             const char *startSpecifier,
-                             unsigned specifierLen) override;
-  bool checkFormatExpr(const analyze_printf::PrintfSpecifier &FS,
-                       const char *StartSpecifier,
-                       unsigned SpecifierLen,
-                       const Expr *E);
-
-  bool HandleAmount(const analyze_format_string::OptionalAmount &Amt, unsigned k,
-                    const char *startSpecifier, unsigned specifierLen);
-  void HandleInvalidAmount(const analyze_printf::PrintfSpecifier &FS,
-                           const analyze_printf::OptionalAmount &Amt,
-                           unsigned type,
-                           const char *startSpecifier, unsigned specifierLen);
-  void HandleFlag(const analyze_printf::PrintfSpecifier &FS,
-                  const analyze_printf::OptionalFlag &flag,
-                  const char *startSpecifier, unsigned specifierLen);
-  void HandleIgnoredFlag(const analyze_printf::PrintfSpecifier &FS,
-                         const analyze_printf::OptionalFlag &ignoredFlag,
-                         const analyze_printf::OptionalFlag &flag,
-                         const char *startSpecifier, unsigned specifierLen);
-  bool checkForCStrMembers(const analyze_printf::ArgType &AT,
-                           const Expr *E);
-
-  void HandleEmptyObjCModifierFlag(const char *startFlag,
-                                   unsigned flagLen) override;
-
-  void HandleInvalidObjCModifierFlag(const char *startFlag,
-                                            unsigned flagLen) override;
-
-  void HandleObjCFlagsWithNonObjCConversion(const char *flagsStart,
-                                           const char *flagsEnd,
-                                           const char *conversionPosition)
-                                             override;
-};
-
-} // namespace
-
-bool CheckPrintfHandler::HandleInvalidPrintfConversionSpecifier(
-                                      const analyze_printf::PrintfSpecifier &FS,
-                                      const char *startSpecifier,
-                                      unsigned specifierLen) {
-  const analyze_printf::PrintfConversionSpecifier &CS =
-    FS.getConversionSpecifier();
-
-  return HandleInvalidConversionSpecifier(FS.getArgIndex(),
-                                          getLocationOfByte(CS.getStart()),
-                                          startSpecifier, specifierLen,
-                                          CS.getStart(), CS.getLength());
-}
-
-void CheckPrintfHandler::handleInvalidMaskType(StringRef MaskType) {
-  S.Diag(getLocationOfByte(MaskType.data()), diag::err_invalid_mask_type_size);
-}
-
-bool CheckPrintfHandler::HandleAmount(
-                               const analyze_format_string::OptionalAmount &Amt,
-                               unsigned k, const char *startSpecifier,
-                               unsigned specifierLen) {
-  if (Amt.hasDataArgument()) {
-    if (!HasVAListArg) {
-      unsigned argIndex = Amt.getArgIndex();
-      if (argIndex >= NumDataArgs) {
-        EmitFormatDiagnostic(S.PDiag(diag::warn_printf_asterisk_missing_arg)
-                               << k,
-                             getLocationOfByte(Amt.getStart()),
-                             /*IsStringLocation*/true,
-                             getSpecifierRange(startSpecifier, specifierLen));
-        // Don't do any more checking.  We will just emit
-        // spurious errors.
-        return false;
-      }
-
-      // Type check the data argument.  It should be an 'int'.
-      // Although not in conformance with C99, we also allow the argument to be
-      // an 'unsigned int' as that is a reasonably safe case.  GCC also
-      // doesn't emit a warning for that case.
-      CoveredArgs.set(argIndex);
-      const Expr *Arg = getDataArg(argIndex);
-      if (!Arg)
-        return false;
-
-      QualType T = Arg->getType();
-
-      const analyze_printf::ArgType &AT = Amt.getArgType(S.Context);
-      assert(AT.isValid());
-
-      if (!AT.matchesType(S.Context, T)) {
-        EmitFormatDiagnostic(S.PDiag(diag::warn_printf_asterisk_wrong_type)
-                               << k << AT.getRepresentativeTypeName(S.Context)
-                               << T << Arg->getSourceRange(),
-                             getLocationOfByte(Amt.getStart()),
-                             /*IsStringLocation*/true,
-                             getSpecifierRange(startSpecifier, specifierLen));
-        // Don't do any more checking.  We will just emit
-        // spurious errors.
-        return false;
-      }
-    }
-  }
-  return true;
-}
-
-void CheckPrintfHandler::HandleInvalidAmount(
-                                      const analyze_printf::PrintfSpecifier &FS,
-                                      const analyze_printf::OptionalAmount &Amt,
-                                      unsigned type,
-                                      const char *startSpecifier,
-                                      unsigned specifierLen) {
-  const analyze_printf::PrintfConversionSpecifier &CS =
-    FS.getConversionSpecifier();
-
-  FixItHint fixit =
-    Amt.getHowSpecified() == analyze_printf::OptionalAmount::Constant
-      ? FixItHint::CreateRemoval(getSpecifierRange(Amt.getStart(),
-                                 Amt.getConstantLength()))
-      : FixItHint();
-
-  EmitFormatDiagnostic(S.PDiag(diag::warn_printf_nonsensical_optional_amount)
-                         << type << CS.toString(),
-                       getLocationOfByte(Amt.getStart()),
-                       /*IsStringLocation*/true,
-                       getSpecifierRange(startSpecifier, specifierLen),
-                       fixit);
-}
-
-void CheckPrintfHandler::HandleFlag(const analyze_printf::PrintfSpecifier &FS,
-                                    const analyze_printf::OptionalFlag &flag,
-                                    const char *startSpecifier,
-                                    unsigned specifierLen) {
-  // Warn about pointless flag with a fixit removal.
-  const analyze_printf::PrintfConversionSpecifier &CS =
-    FS.getConversionSpecifier();
-  EmitFormatDiagnostic(S.PDiag(diag::warn_printf_nonsensical_flag)
-                         << flag.toString() << CS.toString(),
-                       getLocationOfByte(flag.getPosition()),
-                       /*IsStringLocation*/true,
-                       getSpecifierRange(startSpecifier, specifierLen),
-                       FixItHint::CreateRemoval(
-                         getSpecifierRange(flag.getPosition(), 1)));
-}
-
-void CheckPrintfHandler::HandleIgnoredFlag(
-                                const analyze_printf::PrintfSpecifier &FS,
-                                const analyze_printf::OptionalFlag &ignoredFlag,
-                                const analyze_printf::OptionalFlag &flag,
-                                const char *startSpecifier,
-                                unsigned specifierLen) {
-  // Warn about ignored flag with a fixit removal.
-  EmitFormatDiagnostic(S.PDiag(diag::warn_printf_ignored_flag)
-                         << ignoredFlag.toString() << flag.toString(),
-                       getLocationOfByte(ignoredFlag.getPosition()),
-                       /*IsStringLocation*/true,
-                       getSpecifierRange(startSpecifier, specifierLen),
-                       FixItHint::CreateRemoval(
-                         getSpecifierRange(ignoredFlag.getPosition(), 1)));
-}
-
-void CheckPrintfHandler::HandleEmptyObjCModifierFlag(const char *startFlag,
-                                                     unsigned flagLen) {
-  // Warn about an empty flag.
-  EmitFormatDiagnostic(S.PDiag(diag::warn_printf_empty_objc_flag),
-                       getLocationOfByte(startFlag),
-                       /*IsStringLocation*/true,
-                       getSpecifierRange(startFlag, flagLen));
-}
-
-void CheckPrintfHandler::HandleInvalidObjCModifierFlag(const char *startFlag,
-                                                       unsigned flagLen) {
-  // Warn about an invalid flag.
-  auto Range = getSpecifierRange(startFlag, flagLen);
-  StringRef flag(startFlag, flagLen);
-  EmitFormatDiagnostic(S.PDiag(diag::warn_printf_invalid_objc_flag) << flag,
-                      getLocationOfByte(startFlag),
-                      /*IsStringLocation*/true,
-                      Range, FixItHint::CreateRemoval(Range));
-}
-
-void CheckPrintfHandler::HandleObjCFlagsWithNonObjCConversion(
-    const char *flagsStart, const char *flagsEnd, const char *conversionPosition) {
-    // Warn about using '[...]' without a '@' conversion.
-    auto Range = getSpecifierRange(flagsStart, flagsEnd - flagsStart + 1);
-    auto diag = diag::warn_printf_ObjCflags_without_ObjCConversion;
-    EmitFormatDiagnostic(S.PDiag(diag) << StringRef(conversionPosition, 1),
-                         getLocationOfByte(conversionPosition),
-                         /*IsStringLocation*/true,
-                         Range, FixItHint::CreateRemoval(Range));
-}
-
-// Determines if the specified is a C++ class or struct containing
-// a member with the specified name and kind (e.g. a CXXMethodDecl named
-// "c_str()").
-template<typename MemberKind>
-static llvm::SmallPtrSet<MemberKind*, 1>
-CXXRecordMembersNamed(StringRef Name, Sema &S, QualType Ty) {
-  const RecordType *RT = Ty->getAs<RecordType>();
-  llvm::SmallPtrSet<MemberKind*, 1> Results;
-
-  if (!RT)
-    return Results;
-  const CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl());
-  if (!RD || !RD->getDefinition())
-    return Results;
-
-  LookupResult R(S, &S.Context.Idents.get(Name), SourceLocation(),
-                 Sema::LookupMemberName);
-  R.suppressDiagnostics();
-
-  // We just need to include all members of the right kind turned up by the
-  // filter, at this point.
-  if (S.LookupQualifiedName(R, RT->getDecl()))
-    for (LookupResult::iterator I = R.begin(), E = R.end(); I != E; ++I) {
-      NamedDecl *decl = (*I)->getUnderlyingDecl();
-      if (MemberKind *FK = dyn_cast<MemberKind>(decl))
-        Results.insert(FK);
-    }
-  return Results;
-}
-
-/// Check if we could call '.c_str()' on an object.
-///
-/// FIXME: This returns the wrong results in some cases (if cv-qualifiers don't
-/// allow the call, or if it would be ambiguous).
-bool Sema::hasCStrMethod(const Expr *E) {
-  using MethodSet = llvm::SmallPtrSet<CXXMethodDecl *, 1>;
-
-  MethodSet Results =
-      CXXRecordMembersNamed<CXXMethodDecl>("c_str", *this, E->getType());
-  for (MethodSet::iterator MI = Results.begin(), ME = Results.end();
-       MI != ME; ++MI)
-    if ((*MI)->getMinRequiredArguments() == 0)
-      return true;
-  return false;
-}
-
-// Check if a (w)string was passed when a (w)char* was needed, and offer a
-// better diagnostic if so. AT is assumed to be valid.
-// Returns true when a c_str() conversion method is found.
-bool CheckPrintfHandler::checkForCStrMembers(
-    const analyze_printf::ArgType &AT, const Expr *E) {
-  using MethodSet = llvm::SmallPtrSet<CXXMethodDecl *, 1>;
-
-  MethodSet Results =
-      CXXRecordMembersNamed<CXXMethodDecl>("c_str", S, E->getType());
-
-  for (MethodSet::iterator MI = Results.begin(), ME = Results.end();
-       MI != ME; ++MI) {
-    const CXXMethodDecl *Method = *MI;
-    if (Method->getMinRequiredArguments() == 0 &&
-        AT.matchesType(S.Context, Method->getReturnType())) {
-      // FIXME: Suggest parens if the expression needs them.
-      SourceLocation EndLoc = S.getLocForEndOfToken(E->getEndLoc());
-      S.Diag(E->getBeginLoc(), diag::note_printf_c_str)
-          << "c_str()" << FixItHint::CreateInsertion(EndLoc, ".c_str()");
-      return true;
-    }
-  }
-
-  return false;
-}
-
-bool
-CheckPrintfHandler::HandlePrintfSpecifier(const analyze_printf::PrintfSpecifier
-                                            &FS,
-                                          const char *startSpecifier,
-                                          unsigned specifierLen) {
-  using namespace analyze_format_string;
-  using namespace analyze_printf;
-
-  const PrintfConversionSpecifier &CS = FS.getConversionSpecifier();
-
-  if (FS.consumesDataArgument()) {
-    if (atFirstArg) {
-        atFirstArg = false;
-        usesPositionalArgs = FS.usesPositionalArg();
-    }
-    else if (usesPositionalArgs != FS.usesPositionalArg()) {
-      HandlePositionalNonpositionalArgs(getLocationOfByte(CS.getStart()),
-                                        startSpecifier, specifierLen);
-      return false;
-    }
-  }
-
-  // First check if the field width, precision, and conversion specifier
-  // have matching data arguments.
-  if (!HandleAmount(FS.getFieldWidth(), /* field width */ 0,
-                    startSpecifier, specifierLen)) {
-    return false;
-  }
-
-  if (!HandleAmount(FS.getPrecision(), /* precision */ 1,
-                    startSpecifier, specifierLen)) {
-    return false;
-  }
-
-  if (!CS.consumesDataArgument()) {
-    // FIXME: Technically specifying a precision or field width here
-    // makes no sense.  Worth issuing a warning at some point.
-    return true;
-  }
-
-  // Consume the argument.
-  unsigned argIndex = FS.getArgIndex();
-  if (argIndex < NumDataArgs) {
-    // The check to see if the argIndex is valid will come later.
-    // We set the bit here because we may exit early from this
-    // function if we encounter some other error.
-    CoveredArgs.set(argIndex);
-  }
-
-  // FreeBSD kernel extensions.
-  if (CS.getKind() == ConversionSpecifier::FreeBSDbArg ||
-      CS.getKind() == ConversionSpecifier::FreeBSDDArg) {
-    // We need at least two arguments.
-    if (!CheckNumArgs(FS, CS, startSpecifier, specifierLen, argIndex + 1))
-      return false;
-
-    // Claim the second argument.
-    CoveredArgs.set(argIndex + 1);
-
-    // Type check the first argument (int for %b, pointer for %D)
-    const Expr *Ex = getDataArg(argIndex);
-    const analyze_printf::ArgType &AT =
-      (CS.getKind() == ConversionSpecifier::FreeBSDbArg) ?
-        ArgType(S.Context.IntTy) : ArgType::CPointerTy;
-    if (AT.isValid() && !AT.matchesType(S.Context, Ex->getType()))
-      EmitFormatDiagnostic(
-          S.PDiag(diag::warn_format_conversion_argument_type_mismatch)
-              << AT.getRepresentativeTypeName(S.Context) << Ex->getType()
-              << false << Ex->getSourceRange(),
-          Ex->getBeginLoc(), /*IsStringLocation*/ false,
-          getSpecifierRange(startSpecifier, specifierLen));
-
-    // Type check the second argument (char * for both %b and %D)
-    Ex = getDataArg(argIndex + 1);
-    const analyze_printf::ArgType &AT2 = ArgType::CStrTy;
-    if (AT2.isValid() && !AT2.matchesType(S.Context, Ex->getType()))
-      EmitFormatDiagnostic(
-          S.PDiag(diag::warn_format_conversion_argument_type_mismatch)
-              << AT2.getRepresentativeTypeName(S.Context) << Ex->getType()
-              << false << Ex->getSourceRange(),
-          Ex->getBeginLoc(), /*IsStringLocation*/ false,
-          getSpecifierRange(startSpecifier, specifierLen));
-
-     return true;
-  }
-
-  // Check for using an Objective-C specific conversion specifier
-  // in a non-ObjC literal.
-  if (!allowsObjCArg() && CS.isObjCArg()) {
-    return HandleInvalidPrintfConversionSpecifier(FS, startSpecifier,
-                                                  specifierLen);
-  }
-
-  // %P can only be used with os_log.
-  if (FSType != Sema::FST_OSLog && CS.getKind() == ConversionSpecifier::PArg) {
-    return HandleInvalidPrintfConversionSpecifier(FS, startSpecifier,
-                                                  specifierLen);
-  }
-
-  // %n is not allowed with os_log.
-  if (FSType == Sema::FST_OSLog && CS.getKind() == ConversionSpecifier::nArg) {
-    EmitFormatDiagnostic(S.PDiag(diag::warn_os_log_format_narg),
-                         getLocationOfByte(CS.getStart()),
-                         /*IsStringLocation*/ false,
-                         getSpecifierRange(startSpecifier, specifierLen));
-
-    return true;
-  }
-
-  // Only scalars are allowed for os_trace.
-  if (FSType == Sema::FST_OSTrace &&
-      (CS.getKind() == ConversionSpecifier::PArg ||
-       CS.getKind() == ConversionSpecifier::sArg ||
-       CS.getKind() == ConversionSpecifier::ObjCObjArg)) {
-    return HandleInvalidPrintfConversionSpecifier(FS, startSpecifier,
-                                                  specifierLen);
-  }
-
-  // Check for use of public/private annotation outside of os_log().
-  if (FSType != Sema::FST_OSLog) {
-    if (FS.isPublic().isSet()) {
-      EmitFormatDiagnostic(S.PDiag(diag::warn_format_invalid_annotation)
-                               << "public",
-                           getLocationOfByte(FS.isPublic().getPosition()),
-                           /*IsStringLocation*/ false,
-                           getSpecifierRange(startSpecifier, specifierLen));
-    }
-    if (FS.isPrivate().isSet()) {
-      EmitFormatDiagnostic(S.PDiag(diag::warn_format_invalid_annotation)
-                               << "private",
-                           getLocationOfByte(FS.isPrivate().getPosition()),
-                           /*IsStringLocation*/ false,
-                           getSpecifierRange(startSpecifier, specifierLen));
-    }
-  }
-
-  // Check for invalid use of field width
-  if (!FS.hasValidFieldWidth()) {
-    HandleInvalidAmount(FS, FS.getFieldWidth(), /* field width */ 0,
-        startSpecifier, specifierLen);
-  }
-
-  // Check for invalid use of precision
-  if (!FS.hasValidPrecision()) {
-    HandleInvalidAmount(FS, FS.getPrecision(), /* precision */ 1,
-        startSpecifier, specifierLen);
-  }
-
-  // Precision is mandatory for %P specifier.
-  if (CS.getKind() == ConversionSpecifier::PArg &&
-      FS.getPrecision().getHowSpecified() == OptionalAmount::NotSpecified) {
-    EmitFormatDiagnostic(S.PDiag(diag::warn_format_P_no_precision),
-                         getLocationOfByte(startSpecifier),
-                         /*IsStringLocation*/ false,
-                         getSpecifierRange(startSpecifier, specifierLen));
-  }
-
-  // Check each flag does not conflict with any other component.
-  if (!FS.hasValidThousandsGroupingPrefix())
-    HandleFlag(FS, FS.hasThousandsGrouping(), startSpecifier, specifierLen);
-  if (!FS.hasValidLeadingZeros())
-    HandleFlag(FS, FS.hasLeadingZeros(), startSpecifier, specifierLen);
-  if (!FS.hasValidPlusPrefix())
-    HandleFlag(FS, FS.hasPlusPrefix(), startSpecifier, specifierLen);
-  if (!FS.hasValidSpacePrefix())
-    HandleFlag(FS, FS.hasSpacePrefix(), startSpecifier, specifierLen);
-  if (!FS.hasValidAlternativeForm())
-    HandleFlag(FS, FS.hasAlternativeForm(), startSpecifier, specifierLen);
-  if (!FS.hasValidLeftJustified())
-    HandleFlag(FS, FS.isLeftJustified(), startSpecifier, specifierLen);
-
-  // Check that flags are not ignored by another flag
-  if (FS.hasSpacePrefix() && FS.hasPlusPrefix()) // ' ' ignored by '+'
-    HandleIgnoredFlag(FS, FS.hasSpacePrefix(), FS.hasPlusPrefix(),
-        startSpecifier, specifierLen);
-  if (FS.hasLeadingZeros() && FS.isLeftJustified()) // '0' ignored by '-'
-    HandleIgnoredFlag(FS, FS.hasLeadingZeros(), FS.isLeftJustified(),
-            startSpecifier, specifierLen);
-
-  // Check the length modifier is valid with the given conversion specifier.
-  if (!FS.hasValidLengthModifier(S.getASTContext().getTargetInfo(),
-                                 S.getLangOpts()))
-    HandleInvalidLengthModifier(FS, CS, startSpecifier, specifierLen,
-                                diag::warn_format_nonsensical_length);
-  else if (!FS.hasStandardLengthModifier())
-    HandleNonStandardLengthModifier(FS, startSpecifier, specifierLen);
-  else if (!FS.hasStandardLengthConversionCombination())
-    HandleInvalidLengthModifier(FS, CS, startSpecifier, specifierLen,
-                                diag::warn_format_non_standard_conversion_spec);
-
-  if (!FS.hasStandardConversionSpecifier(S.getLangOpts()))
-    HandleNonStandardConversionSpecifier(CS, startSpecifier, specifierLen);
-
-  // The remaining checks depend on the data arguments.
-  if (HasVAListArg)
-    return true;
-
-  if (!CheckNumArgs(FS, CS, startSpecifier, specifierLen, argIndex))
-    return false;
-
-  const Expr *Arg = getDataArg(argIndex);
-  if (!Arg)
-    return true;
-
-  return checkFormatExpr(FS, startSpecifier, specifierLen, Arg);
-}
-
-static bool requiresParensToAddCast(const Expr *E) {
-  // FIXME: We should have a general way to reason about operator
-  // precedence and whether parens are actually needed here.
-  // Take care of a few common cases where they aren't.
-  const Expr *Inside = E->IgnoreImpCasts();
-  if (const PseudoObjectExpr *POE = dyn_cast<PseudoObjectExpr>(Inside))
-    Inside = POE->getSyntacticForm()->IgnoreImpCasts();
-
-  switch (Inside->getStmtClass()) {
-  case Stmt::ArraySubscriptExprClass:
-  case Stmt::CallExprClass:
-  case Stmt::CharacterLiteralClass:
-  case Stmt::CXXBoolLiteralExprClass:
-  case Stmt::DeclRefExprClass:
-  case Stmt::FloatingLiteralClass:
-  case Stmt::IntegerLiteralClass:
-  case Stmt::MemberExprClass:
-  case Stmt::ObjCArrayLiteralClass:
-  case Stmt::ObjCBoolLiteralExprClass:
-  case Stmt::ObjCBoxedExprClass:
-  case Stmt::ObjCDictionaryLiteralClass:
-  case Stmt::ObjCEncodeExprClass:
-  case Stmt::ObjCIvarRefExprClass:
-  case Stmt::ObjCMessageExprClass:
-  case Stmt::ObjCPropertyRefExprClass:
-  case Stmt::ObjCStringLiteralClass:
-  case Stmt::ObjCSubscriptRefExprClass:
-  case Stmt::ParenExprClass:
-  case Stmt::StringLiteralClass:
-  case Stmt::UnaryOperatorClass:
-    return false;
-  default:
-    return true;
-  }
-}
-
-static std::pair<QualType, StringRef>
-shouldNotPrintDirectly(const ASTContext &Context,
-                       QualType IntendedTy,
-                       const Expr *E) {
-  // Use a 'while' to peel off layers of typedefs.
-  QualType TyTy = IntendedTy;
-  while (const TypedefType *UserTy = TyTy->getAs<TypedefType>()) {
-    StringRef Name = UserTy->getDecl()->getName();
-    QualType CastTy = llvm::StringSwitch<QualType>(Name)
-      .Case("CFIndex", Context.getNSIntegerType())
-      .Case("NSInteger", Context.getNSIntegerType())
-      .Case("NSUInteger", Context.getNSUIntegerType())
-      .Case("SInt32", Context.IntTy)
-      .Case("UInt32", Context.UnsignedIntTy)
-      .Default(QualType());
-
-    if (!CastTy.isNull())
-      return std::make_pair(CastTy, Name);
-
-    TyTy = UserTy->desugar();
-  }
-
-  // Strip parens if necessary.
-  if (const ParenExpr *PE = dyn_cast<ParenExpr>(E))
-    return shouldNotPrintDirectly(Context,
-                                  PE->getSubExpr()->getType(),
-                                  PE->getSubExpr());
-
-  // If this is a conditional expression, then its result type is constructed
-  // via usual arithmetic conversions and thus there might be no necessary
-  // typedef sugar there.  Recurse to operands to check for NSInteger &
-  // Co. usage condition.
-  if (const ConditionalOperator *CO = dyn_cast<ConditionalOperator>(E)) {
-    QualType TrueTy, FalseTy;
-    StringRef TrueName, FalseName;
-
-    std::tie(TrueTy, TrueName) =
-      shouldNotPrintDirectly(Context,
-                             CO->getTrueExpr()->getType(),
-                             CO->getTrueExpr());
-    std::tie(FalseTy, FalseName) =
-      shouldNotPrintDirectly(Context,
-                             CO->getFalseExpr()->getType(),
-                             CO->getFalseExpr());
-
-    if (TrueTy == FalseTy)
-      return std::make_pair(TrueTy, TrueName);
-    else if (TrueTy.isNull())
-      return std::make_pair(FalseTy, FalseName);
-    else if (FalseTy.isNull())
-      return std::make_pair(TrueTy, TrueName);
-  }
-
-  return std::make_pair(QualType(), StringRef());
-}
-
-/// Return true if \p ICE is an implicit argument promotion of an arithmetic
-/// type. Bit-field 'promotions' from a higher ranked type to a lower ranked
-/// type do not count.
-static bool
-isArithmeticArgumentPromotion(Sema &S, const ImplicitCastExpr *ICE) {
-  QualType From = ICE->getSubExpr()->getType();
-  QualType To = ICE->getType();
-  // It's an integer promotion if the destination type is the promoted
-  // source type.
-  if (ICE->getCastKind() == CK_IntegralCast &&
-      From->isPromotableIntegerType() &&
-      S.Context.getPromotedIntegerType(From) == To)
-    return true;
-  // Look through vector types, since we do default argument promotion for
-  // those in OpenCL.
-  if (const auto *VecTy = From->getAs<ExtVectorType>())
-    From = VecTy->getElementType();
-  if (const auto *VecTy = To->getAs<ExtVectorType>())
-    To = VecTy->getElementType();
-  // It's a floating promotion if the source type is a lower rank.
-  return ICE->getCastKind() == CK_FloatingCast &&
-         S.Context.getFloatingTypeOrder(From, To) < 0;
-}
-
-bool
-CheckPrintfHandler::checkFormatExpr(const analyze_printf::PrintfSpecifier &FS,
-                                    const char *StartSpecifier,
-                                    unsigned SpecifierLen,
-                                    const Expr *E) {
-  using namespace analyze_format_string;
-  using namespace analyze_printf;
-
-  // Now type check the data expression that matches the
-  // format specifier.
-  const analyze_printf::ArgType &AT = FS.getArgType(S.Context, isObjCContext());
-  if (!AT.isValid())
-    return true;
-
-  QualType ExprTy = E->getType();
-  while (const TypeOfExprType *TET = dyn_cast<TypeOfExprType>(ExprTy)) {
-    ExprTy = TET->getUnderlyingExpr()->getType();
-  }
-
-  const analyze_printf::ArgType::MatchKind Match =
-      AT.matchesType(S.Context, ExprTy);
-  bool Pedantic = Match == analyze_printf::ArgType::NoMatchPedantic;
-  if (Match == analyze_printf::ArgType::Match)
-    return true;
-
-  // Look through argument promotions for our error message's reported type.
-  // This includes the integral and floating promotions, but excludes array
-  // and function pointer decay (seeing that an argument intended to be a
-  // string has type 'char [6]' is probably more confusing than 'char *') and
-  // certain bitfield promotions (bitfields can be 'demoted' to a lesser type).
-  if (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) {
-    if (isArithmeticArgumentPromotion(S, ICE)) {
-      E = ICE->getSubExpr();
-      ExprTy = E->getType();
-
-      // Check if we didn't match because of an implicit cast from a 'char'
-      // or 'short' to an 'int'.  This is done because printf is a varargs
-      // function.
-      if (ICE->getType() == S.Context.IntTy ||
-          ICE->getType() == S.Context.UnsignedIntTy) {
-        // All further checking is done on the subexpression.
-        if (AT.matchesType(S.Context, ExprTy))
-          return true;
-      }
-    }
-  } else if (const CharacterLiteral *CL = dyn_cast<CharacterLiteral>(E)) {
-    // Special case for 'a', which has type 'int' in C.
-    // Note, however, that we do /not/ want to treat multibyte constants like
-    // 'MooV' as characters! This form is deprecated but still exists.
-    if (ExprTy == S.Context.IntTy)
-      if (llvm::isUIntN(S.Context.getCharWidth(), CL->getValue()))
-        ExprTy = S.Context.CharTy;
-  }
-
-  // Look through enums to their underlying type.
-  bool IsEnum = false;
-  if (auto EnumTy = ExprTy->getAs<EnumType>()) {
-    ExprTy = EnumTy->getDecl()->getIntegerType();
-    IsEnum = true;
-  }
-
-  // %C in an Objective-C context prints a unichar, not a wchar_t.
-  // If the argument is an integer of some kind, believe the %C and suggest
-  // a cast instead of changing the conversion specifier.
-  QualType IntendedTy = ExprTy;
-  if (isObjCContext() &&
-      FS.getConversionSpecifier().getKind() == ConversionSpecifier::CArg) {
-    if (ExprTy->isIntegralOrUnscopedEnumerationType() &&
-        !ExprTy->isCharType()) {
-      // 'unichar' is defined as a typedef of unsigned short, but we should
-      // prefer using the typedef if it is visible.
-      IntendedTy = S.Context.UnsignedShortTy;
-
-      // While we are here, check if the value is an IntegerLiteral that happens
-      // to be within the valid range.
-      if (const IntegerLiteral *IL = dyn_cast<IntegerLiteral>(E)) {
-        const llvm::APInt &V = IL->getValue();
-        if (V.getActiveBits() <= S.Context.getTypeSize(IntendedTy))
-          return true;
-      }
-
-      LookupResult Result(S, &S.Context.Idents.get("unichar"), E->getBeginLoc(),
-                          Sema::LookupOrdinaryName);
-      if (S.LookupName(Result, S.getCurScope())) {
-        NamedDecl *ND = Result.getFoundDecl();
-        if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(ND))
-          if (TD->getUnderlyingType() == IntendedTy)
-            IntendedTy = S.Context.getTypedefType(TD);
-      }
-    }
-  }
-
-  // Special-case some of Darwin's platform-independence types by suggesting
-  // casts to primitive types that are known to be large enough.
-  bool ShouldNotPrintDirectly = false; StringRef CastTyName;
-  if (S.Context.getTargetInfo().getTriple().isOSDarwin()) {
-    QualType CastTy;
-    std::tie(CastTy, CastTyName) = shouldNotPrintDirectly(S.Context, IntendedTy, E);
-    if (!CastTy.isNull()) {
-      // %zi/%zu and %td/%tu are OK to use for NSInteger/NSUInteger of type int
-      // (long in ASTContext). Only complain to pedants.
-      if ((CastTyName == "NSInteger" || CastTyName == "NSUInteger") &&
-          (AT.isSizeT() || AT.isPtrdiffT()) &&
-          AT.matchesType(S.Context, CastTy))
-        Pedantic = true;
-      IntendedTy = CastTy;
-      ShouldNotPrintDirectly = true;
-    }
-  }
-
-  // We may be able to offer a FixItHint if it is a supported type.
-  PrintfSpecifier fixedFS = FS;
-  bool Success =
-      fixedFS.fixType(IntendedTy, S.getLangOpts(), S.Context, isObjCContext());
-
-  if (Success) {
-    // Get the fix string from the fixed format specifier
-    SmallString<16> buf;
-    llvm::raw_svector_ostream os(buf);
-    fixedFS.toString(os);
-
-    CharSourceRange SpecRange = getSpecifierRange(StartSpecifier, SpecifierLen);
-
-    if (IntendedTy == ExprTy && !ShouldNotPrintDirectly) {
-      unsigned Diag =
-          Pedantic
-              ? diag::warn_format_conversion_argument_type_mismatch_pedantic
-              : diag::warn_format_conversion_argument_type_mismatch;
-      // In this case, the specifier is wrong and should be changed to match
-      // the argument.
-      EmitFormatDiagnostic(S.PDiag(Diag)
-                               << AT.getRepresentativeTypeName(S.Context)
-                               << IntendedTy << IsEnum << E->getSourceRange(),
-                           E->getBeginLoc(),
-                           /*IsStringLocation*/ false, SpecRange,
-                           FixItHint::CreateReplacement(SpecRange, os.str()));
-    } else {
-      // The canonical type for formatting this value is different from the
-      // actual type of the expression. (This occurs, for example, with Darwin's
-      // NSInteger on 32-bit platforms, where it is typedef'd as 'int', but
-      // should be printed as 'long' for 64-bit compatibility.)
-      // Rather than emitting a normal format/argument mismatch, we want to
-      // add a cast to the recommended type (and correct the format string
-      // if necessary).
-      SmallString<16> CastBuf;
-      llvm::raw_svector_ostream CastFix(CastBuf);
-      CastFix << "(";
-      IntendedTy.print(CastFix, S.Context.getPrintingPolicy());
-      CastFix << ")";
-
-      SmallVector<FixItHint,4> Hints;
-      if (!AT.matchesType(S.Context, IntendedTy) || ShouldNotPrintDirectly)
-        Hints.push_back(FixItHint::CreateReplacement(SpecRange, os.str()));
-
-      if (const CStyleCastExpr *CCast = dyn_cast<CStyleCastExpr>(E)) {
-        // If there's already a cast present, just replace it.
-        SourceRange CastRange(CCast->getLParenLoc(), CCast->getRParenLoc());
-        Hints.push_back(FixItHint::CreateReplacement(CastRange, CastFix.str()));
-
-      } else if (!requiresParensToAddCast(E)) {
-        // If the expression has high enough precedence,
-        // just write the C-style cast.
-        Hints.push_back(
-            FixItHint::CreateInsertion(E->getBeginLoc(), CastFix.str()));
-      } else {
-        // Otherwise, add parens around the expression as well as the cast.
-        CastFix << "(";
-        Hints.push_back(
-            FixItHint::CreateInsertion(E->getBeginLoc(), CastFix.str()));
-
-        SourceLocation After = S.getLocForEndOfToken(E->getEndLoc());
-        Hints.push_back(FixItHint::CreateInsertion(After, ")"));
-      }
-
-      if (ShouldNotPrintDirectly) {
-        // The expression has a type that should not be printed directly.
-        // We extract the name from the typedef because we don't want to show
-        // the underlying type in the diagnostic.
-        StringRef Name;
-        if (const TypedefType *TypedefTy = dyn_cast<TypedefType>(ExprTy))
-          Name = TypedefTy->getDecl()->getName();
-        else
-          Name = CastTyName;
-        unsigned Diag = Pedantic
-                            ? diag::warn_format_argument_needs_cast_pedantic
-                            : diag::warn_format_argument_needs_cast;
-        EmitFormatDiagnostic(S.PDiag(Diag) << Name << IntendedTy << IsEnum
-                                           << E->getSourceRange(),
-                             E->getBeginLoc(), /*IsStringLocation=*/false,
-                             SpecRange, Hints);
-      } else {
-        // In this case, the expression could be printed using a different
-        // specifier, but we've decided that the specifier is probably correct
-        // and we should cast instead. Just use the normal warning message.
-        EmitFormatDiagnostic(
-            S.PDiag(diag::warn_format_conversion_argument_type_mismatch)
-                << AT.getRepresentativeTypeName(S.Context) << ExprTy << IsEnum
-                << E->getSourceRange(),
-            E->getBeginLoc(), /*IsStringLocation*/ false, SpecRange, Hints);
-      }
-    }
-  } else {
-    const CharSourceRange &CSR = getSpecifierRange(StartSpecifier,
-                                                   SpecifierLen);
-    // Since the warning for passing non-POD types to variadic functions
-    // was deferred until now, we emit a warning for non-POD
-    // arguments here.
-    switch (S.isValidVarArgType(ExprTy)) {
-    case Sema::VAK_Valid:
-    case Sema::VAK_ValidInCXX11: {
-      unsigned Diag =
-          Pedantic
-              ? diag::warn_format_conversion_argument_type_mismatch_pedantic
-              : diag::warn_format_conversion_argument_type_mismatch;
-
-      EmitFormatDiagnostic(
-          S.PDiag(Diag) << AT.getRepresentativeTypeName(S.Context) << ExprTy
-                        << IsEnum << CSR << E->getSourceRange(),
-          E->getBeginLoc(), /*IsStringLocation*/ false, CSR);
-      break;
-    }
-    case Sema::VAK_Undefined:
-    case Sema::VAK_MSVCUndefined:
-      EmitFormatDiagnostic(S.PDiag(diag::warn_non_pod_vararg_with_format_string)
-                               << S.getLangOpts().CPlusPlus11 << ExprTy
-                               << CallType
-                               << AT.getRepresentativeTypeName(S.Context) << CSR
-                               << E->getSourceRange(),
-                           E->getBeginLoc(), /*IsStringLocation*/ false, CSR);
-      checkForCStrMembers(AT, E);
-      break;
-
-    case Sema::VAK_Invalid:
-      if (ExprTy->isObjCObjectType())
-        EmitFormatDiagnostic(
-            S.PDiag(diag::err_cannot_pass_objc_interface_to_vararg_format)
-                << S.getLangOpts().CPlusPlus11 << ExprTy << CallType
-                << AT.getRepresentativeTypeName(S.Context) << CSR
-                << E->getSourceRange(),
-            E->getBeginLoc(), /*IsStringLocation*/ false, CSR);
-      else
-        // FIXME: If this is an initializer list, suggest removing the braces
-        // or inserting a cast to the target type.
-        S.Diag(E->getBeginLoc(), diag::err_cannot_pass_to_vararg_format)
-            << isa<InitListExpr>(E) << ExprTy << CallType
-            << AT.getRepresentativeTypeName(S.Context) << E->getSourceRange();
-      break;
-    }
-
-    assert(FirstDataArg + FS.getArgIndex() < CheckedVarArgs.size() &&
-           "format string specifier index out of range");
-    CheckedVarArgs[FirstDataArg + FS.getArgIndex()] = true;
-  }
-
-  return true;
-}
-
-//===--- CHECK: Scanf format string checking ------------------------------===//
-
-namespace {
-
-class CheckScanfHandler : public CheckFormatHandler {
-public:
-  CheckScanfHandler(Sema &s, const FormatStringLiteral *fexpr,
-                    const Expr *origFormatExpr, Sema::FormatStringType type,
-                    unsigned firstDataArg, unsigned numDataArgs,
-                    const char *beg, bool hasVAListArg,
-                    ArrayRef<const Expr *> Args, unsigned formatIdx,
-                    bool inFunctionCall, Sema::VariadicCallType CallType,
-                    llvm::SmallBitVector &CheckedVarArgs,
-                    UncoveredArgHandler &UncoveredArg)
-      : CheckFormatHandler(s, fexpr, origFormatExpr, type, firstDataArg,
-                           numDataArgs, beg, hasVAListArg, Args, formatIdx,
-                           inFunctionCall, CallType, CheckedVarArgs,
-                           UncoveredArg) {}
-
-  bool HandleScanfSpecifier(const analyze_scanf::ScanfSpecifier &FS,
-                            const char *startSpecifier,
-                            unsigned specifierLen) override;
-
-  bool HandleInvalidScanfConversionSpecifier(
-          const analyze_scanf::ScanfSpecifier &FS,
-          const char *startSpecifier,
-          unsigned specifierLen) override;
-
-  void HandleIncompleteScanList(const char *start, const char *end) override;
-};
-
-} // namespace
-
-void CheckScanfHandler::HandleIncompleteScanList(const char *start,
-                                                 const char *end) {
-  EmitFormatDiagnostic(S.PDiag(diag::warn_scanf_scanlist_incomplete),
-                       getLocationOfByte(end), /*IsStringLocation*/true,
-                       getSpecifierRange(start, end - start));
-}
-
-bool CheckScanfHandler::HandleInvalidScanfConversionSpecifier(
-                                        const analyze_scanf::ScanfSpecifier &FS,
-                                        const char *startSpecifier,
-                                        unsigned specifierLen) {
-  const analyze_scanf::ScanfConversionSpecifier &CS =
-    FS.getConversionSpecifier();
-
-  return HandleInvalidConversionSpecifier(FS.getArgIndex(),
-                                          getLocationOfByte(CS.getStart()),
-                                          startSpecifier, specifierLen,
-                                          CS.getStart(), CS.getLength());
-}
-
-bool CheckScanfHandler::HandleScanfSpecifier(
-                                       const analyze_scanf::ScanfSpecifier &FS,
-                                       const char *startSpecifier,
-                                       unsigned specifierLen) {
-  using namespace analyze_scanf;
-  using namespace analyze_format_string;
-
-  const ScanfConversionSpecifier &CS = FS.getConversionSpecifier();
-
-  // Handle case where '%' and '*' don't consume an argument.  These shouldn't
-  // be used to decide if we are using positional arguments consistently.
-  if (FS.consumesDataArgument()) {
-    if (atFirstArg) {
-      atFirstArg = false;
-      usesPositionalArgs = FS.usesPositionalArg();
-    }
-    else if (usesPositionalArgs != FS.usesPositionalArg()) {
-      HandlePositionalNonpositionalArgs(getLocationOfByte(CS.getStart()),
-                                        startSpecifier, specifierLen);
-      return false;
-    }
-  }
-
-  // Check if the field with is non-zero.
-  const OptionalAmount &Amt = FS.getFieldWidth();
-  if (Amt.getHowSpecified() == OptionalAmount::Constant) {
-    if (Amt.getConstantAmount() == 0) {
-      const CharSourceRange &R = getSpecifierRange(Amt.getStart(),
-                                                   Amt.getConstantLength());
-      EmitFormatDiagnostic(S.PDiag(diag::warn_scanf_nonzero_width),
-                           getLocationOfByte(Amt.getStart()),
-                           /*IsStringLocation*/true, R,
-                           FixItHint::CreateRemoval(R));
-    }
-  }
-
-  if (!FS.consumesDataArgument()) {
-    // FIXME: Technically specifying a precision or field width here
-    // makes no sense.  Worth issuing a warning at some point.
-    return true;
-  }
-
-  // Consume the argument.
-  unsigned argIndex = FS.getArgIndex();
-  if (argIndex < NumDataArgs) {
-      // The check to see if the argIndex is valid will come later.
-      // We set the bit here because we may exit early from this
-      // function if we encounter some other error.
-    CoveredArgs.set(argIndex);
-  }
-
-  // Check the length modifier is valid with the given conversion specifier.
-  if (!FS.hasValidLengthModifier(S.getASTContext().getTargetInfo(),
-                                 S.getLangOpts()))
-    HandleInvalidLengthModifier(FS, CS, startSpecifier, specifierLen,
-                                diag::warn_format_nonsensical_length);
-  else if (!FS.hasStandardLengthModifier())
-    HandleNonStandardLengthModifier(FS, startSpecifier, specifierLen);
-  else if (!FS.hasStandardLengthConversionCombination())
-    HandleInvalidLengthModifier(FS, CS, startSpecifier, specifierLen,
-                                diag::warn_format_non_standard_conversion_spec);
-
-  if (!FS.hasStandardConversionSpecifier(S.getLangOpts()))
-    HandleNonStandardConversionSpecifier(CS, startSpecifier, specifierLen);
-
-  // The remaining checks depend on the data arguments.
-  if (HasVAListArg)
-    return true;
-
-  if (!CheckNumArgs(FS, CS, startSpecifier, specifierLen, argIndex))
-    return false;
-
-  // Check that the argument type matches the format specifier.
-  const Expr *Ex = getDataArg(argIndex);
-  if (!Ex)
-    return true;
-
-  const analyze_format_string::ArgType &AT = FS.getArgType(S.Context);
-
-  if (!AT.isValid()) {
-    return true;
-  }
-
-  analyze_format_string::ArgType::MatchKind Match =
-      AT.matchesType(S.Context, Ex->getType());
-  bool Pedantic = Match == analyze_format_string::ArgType::NoMatchPedantic;
-  if (Match == analyze_format_string::ArgType::Match)
-    return true;
-
-  ScanfSpecifier fixedFS = FS;
-  bool Success = fixedFS.fixType(Ex->getType(), Ex->IgnoreImpCasts()->getType(),
-                                 S.getLangOpts(), S.Context);
-
-  unsigned Diag =
-      Pedantic ? diag::warn_format_conversion_argument_type_mismatch_pedantic
-               : diag::warn_format_conversion_argument_type_mismatch;
-
-  if (Success) {
-    // Get the fix string from the fixed format specifier.
-    SmallString<128> buf;
-    llvm::raw_svector_ostream os(buf);
-    fixedFS.toString(os);
-
-    EmitFormatDiagnostic(
-        S.PDiag(Diag) << AT.getRepresentativeTypeName(S.Context)
-                      << Ex->getType() << false << Ex->getSourceRange(),
-        Ex->getBeginLoc(),
-        /*IsStringLocation*/ false,
-        getSpecifierRange(startSpecifier, specifierLen),
-        FixItHint::CreateReplacement(
-            getSpecifierRange(startSpecifier, specifierLen), os.str()));
-  } else {
-    EmitFormatDiagnostic(S.PDiag(Diag)
-                             << AT.getRepresentativeTypeName(S.Context)
-                             << Ex->getType() << false << Ex->getSourceRange(),
-                         Ex->getBeginLoc(),
-                         /*IsStringLocation*/ false,
-                         getSpecifierRange(startSpecifier, specifierLen));
-  }
-
-  return true;
-}
-
-static void CheckFormatString(Sema &S, const FormatStringLiteral *FExpr,
-                              const Expr *OrigFormatExpr,
-                              ArrayRef<const Expr *> Args,
-                              bool HasVAListArg, unsigned format_idx,
-                              unsigned firstDataArg,
-                              Sema::FormatStringType Type,
-                              bool inFunctionCall,
-                              Sema::VariadicCallType CallType,
-                              llvm::SmallBitVector &CheckedVarArgs,
-                              UncoveredArgHandler &UncoveredArg) {
-  // CHECK: is the format string a wide literal?
-  if (!FExpr->isAscii() && !FExpr->isUTF8()) {
-    CheckFormatHandler::EmitFormatDiagnostic(
-        S, inFunctionCall, Args[format_idx],
-        S.PDiag(diag::warn_format_string_is_wide_literal), FExpr->getBeginLoc(),
-        /*IsStringLocation*/ true, OrigFormatExpr->getSourceRange());
-    return;
-  }
-
-  // Str - The format string.  NOTE: this is NOT null-terminated!
-  StringRef StrRef = FExpr->getString();
-  const char *Str = StrRef.data();
-  // Account for cases where the string literal is truncated in a declaration.
-  const ConstantArrayType *T =
-    S.Context.getAsConstantArrayType(FExpr->getType());
-  assert(T && "String literal not of constant array type!");
-  size_t TypeSize = T->getSize().getZExtValue();
-  size_t StrLen = std::min(std::max(TypeSize, size_t(1)) - 1, StrRef.size());
-  const unsigned numDataArgs = Args.size() - firstDataArg;
-
-  // Emit a warning if the string literal is truncated and does not contain an
-  // embedded null character.
-  if (TypeSize <= StrRef.size() &&
-      StrRef.substr(0, TypeSize).find('\0') == StringRef::npos) {
-    CheckFormatHandler::EmitFormatDiagnostic(
-        S, inFunctionCall, Args[format_idx],
-        S.PDiag(diag::warn_printf_format_string_not_null_terminated),
-        FExpr->getBeginLoc(),
-        /*IsStringLocation=*/true, OrigFormatExpr->getSourceRange());
-    return;
-  }
-
-  // CHECK: empty format string?
-  if (StrLen == 0 && numDataArgs > 0) {
-    CheckFormatHandler::EmitFormatDiagnostic(
-        S, inFunctionCall, Args[format_idx],
-        S.PDiag(diag::warn_empty_format_string), FExpr->getBeginLoc(),
-        /*IsStringLocation*/ true, OrigFormatExpr->getSourceRange());
-    return;
-  }
-
-  if (Type == Sema::FST_Printf || Type == Sema::FST_NSString ||
-      Type == Sema::FST_FreeBSDKPrintf || Type == Sema::FST_OSLog ||
-      Type == Sema::FST_OSTrace) {
-    CheckPrintfHandler H(
-        S, FExpr, OrigFormatExpr, Type, firstDataArg, numDataArgs,
-        (Type == Sema::FST_NSString || Type == Sema::FST_OSTrace), Str,
-        HasVAListArg, Args, format_idx, inFunctionCall, CallType,
-        CheckedVarArgs, UncoveredArg);
-
-    if (!analyze_format_string::ParsePrintfString(H, Str, Str + StrLen,
-                                                  S.getLangOpts(),
-                                                  S.Context.getTargetInfo(),
-                                            Type == Sema::FST_FreeBSDKPrintf))
-      H.DoneProcessing();
-  } else if (Type == Sema::FST_Scanf) {
-    CheckScanfHandler H(S, FExpr, OrigFormatExpr, Type, firstDataArg,
-                        numDataArgs, Str, HasVAListArg, Args, format_idx,
-                        inFunctionCall, CallType, CheckedVarArgs, UncoveredArg);
-
-    if (!analyze_format_string::ParseScanfString(H, Str, Str + StrLen,
-                                                 S.getLangOpts(),
-                                                 S.Context.getTargetInfo()))
-      H.DoneProcessing();
-  } // TODO: handle other formats
-}
-
-bool Sema::FormatStringHasSArg(const StringLiteral *FExpr) {
-  // Str - The format string.  NOTE: this is NOT null-terminated!
-  StringRef StrRef = FExpr->getString();
-  const char *Str = StrRef.data();
-  // Account for cases where the string literal is truncated in a declaration.
-  const ConstantArrayType *T = Context.getAsConstantArrayType(FExpr->getType());
-  assert(T && "String literal not of constant array type!");
-  size_t TypeSize = T->getSize().getZExtValue();
-  size_t StrLen = std::min(std::max(TypeSize, size_t(1)) - 1, StrRef.size());
-  return analyze_format_string::ParseFormatStringHasSArg(Str, Str + StrLen,
-                                                         getLangOpts(),
-                                                         Context.getTargetInfo());
-}
-
-//===--- CHECK: Warn on use of wrong absolute value function. -------------===//
-
-// Returns the related absolute value function that is larger, of 0 if one
-// does not exist.
-static unsigned getLargerAbsoluteValueFunction(unsigned AbsFunction) {
-  switch (AbsFunction) {
-  default:
-    return 0;
-
-  case Builtin::BI__builtin_abs:
-    return Builtin::BI__builtin_labs;
-  case Builtin::BI__builtin_labs:
-    return Builtin::BI__builtin_llabs;
-  case Builtin::BI__builtin_llabs:
-    return 0;
-
-  case Builtin::BI__builtin_fabsf:
-    return Builtin::BI__builtin_fabs;
-  case Builtin::BI__builtin_fabs:
-    return Builtin::BI__builtin_fabsl;
-  case Builtin::BI__builtin_fabsl:
-    return 0;
-
-  case Builtin::BI__builtin_cabsf:
-    return Builtin::BI__builtin_cabs;
-  case Builtin::BI__builtin_cabs:
-    return Builtin::BI__builtin_cabsl;
-  case Builtin::BI__builtin_cabsl:
-    return 0;
-
-  case Builtin::BIabs:
-    return Builtin::BIlabs;
-  case Builtin::BIlabs:
-    return Builtin::BIllabs;
-  case Builtin::BIllabs:
-    return 0;
-
-  case Builtin::BIfabsf:
-    return Builtin::BIfabs;
-  case Builtin::BIfabs:
-    return Builtin::BIfabsl;
-  case Builtin::BIfabsl:
-    return 0;
-
-  case Builtin::BIcabsf:
-   return Builtin::BIcabs;
-  case Builtin::BIcabs:
-    return Builtin::BIcabsl;
-  case Builtin::BIcabsl:
-    return 0;
-  }
-}
-
-// Returns the argument type of the absolute value function.
-static QualType getAbsoluteValueArgumentType(ASTContext &Context,
-                                             unsigned AbsType) {
-  if (AbsType == 0)
-    return QualType();
-
-  ASTContext::GetBuiltinTypeError Error = ASTContext::GE_None;
-  QualType BuiltinType = Context.GetBuiltinType(AbsType, Error);
-  if (Error != ASTContext::GE_None)
-    return QualType();
-
-  const FunctionProtoType *FT = BuiltinType->getAs<FunctionProtoType>();
-  if (!FT)
-    return QualType();
-
-  if (FT->getNumParams() != 1)
-    return QualType();
-
-  return FT->getParamType(0);
-}
-
-// Returns the best absolute value function, or zero, based on type and
-// current absolute value function.
-static unsigned getBestAbsFunction(ASTContext &Context, QualType ArgType,
-                                   unsigned AbsFunctionKind) {
-  unsigned BestKind = 0;
-  uint64_t ArgSize = Context.getTypeSize(ArgType);
-  for (unsigned Kind = AbsFunctionKind; Kind != 0;
-       Kind = getLargerAbsoluteValueFunction(Kind)) {
-    QualType ParamType = getAbsoluteValueArgumentType(Context, Kind);
-    if (Context.getTypeSize(ParamType) >= ArgSize) {
-      if (BestKind == 0)
-        BestKind = Kind;
-      else if (Context.hasSameType(ParamType, ArgType)) {
-        BestKind = Kind;
-        break;
-      }
-    }
-  }
-  return BestKind;
-}
-
-enum AbsoluteValueKind {
-  AVK_Integer,
-  AVK_Floating,
-  AVK_Complex
-};
-
-static AbsoluteValueKind getAbsoluteValueKind(QualType T) {
-  if (T->isIntegralOrEnumerationType())
-    return AVK_Integer;
-  if (T->isRealFloatingType())
-    return AVK_Floating;
-  if (T->isAnyComplexType())
-    return AVK_Complex;
-
-  llvm_unreachable("Type not integer, floating, or complex");
-}
-
-// Changes the absolute value function to a different type.  Preserves whether
-// the function is a builtin.
-static unsigned changeAbsFunction(unsigned AbsKind,
-                                  AbsoluteValueKind ValueKind) {
-  switch (ValueKind) {
-  case AVK_Integer:
-    switch (AbsKind) {
-    default:
-      return 0;
-    case Builtin::BI__builtin_fabsf:
-    case Builtin::BI__builtin_fabs:
-    case Builtin::BI__builtin_fabsl:
-    case Builtin::BI__builtin_cabsf:
-    case Builtin::BI__builtin_cabs:
-    case Builtin::BI__builtin_cabsl:
-      return Builtin::BI__builtin_abs;
-    case Builtin::BIfabsf:
-    case Builtin::BIfabs:
-    case Builtin::BIfabsl:
-    case Builtin::BIcabsf:
-    case Builtin::BIcabs:
-    case Builtin::BIcabsl:
-      return Builtin::BIabs;
-    }
-  case AVK_Floating:
-    switch (AbsKind) {
-    default:
-      return 0;
-    case Builtin::BI__builtin_abs:
-    case Builtin::BI__builtin_labs:
-    case Builtin::BI__builtin_llabs:
-    case Builtin::BI__builtin_cabsf:
-    case Builtin::BI__builtin_cabs:
-    case Builtin::BI__builtin_cabsl:
-      return Builtin::BI__builtin_fabsf;
-    case Builtin::BIabs:
-    case Builtin::BIlabs:
-    case Builtin::BIllabs:
-    case Builtin::BIcabsf:
-    case Builtin::BIcabs:
-    case Builtin::BIcabsl:
-      return Builtin::BIfabsf;
-    }
-  case AVK_Complex:
-    switch (AbsKind) {
-    default:
-      return 0;
-    case Builtin::BI__builtin_abs:
-    case Builtin::BI__builtin_labs:
-    case Builtin::BI__builtin_llabs:
-    case Builtin::BI__builtin_fabsf:
-    case Builtin::BI__builtin_fabs:
-    case Builtin::BI__builtin_fabsl:
-      return Builtin::BI__builtin_cabsf;
-    case Builtin::BIabs:
-    case Builtin::BIlabs:
-    case Builtin::BIllabs:
-    case Builtin::BIfabsf:
-    case Builtin::BIfabs:
-    case Builtin::BIfabsl:
-      return Builtin::BIcabsf;
-    }
-  }
-  llvm_unreachable("Unable to convert function");
-}
-
-static unsigned getAbsoluteValueFunctionKind(const FunctionDecl *FDecl) {
-  const IdentifierInfo *FnInfo = FDecl->getIdentifier();
-  if (!FnInfo)
-    return 0;
-
-  switch (FDecl->getBuiltinID()) {
-  default:
-    return 0;
-  case Builtin::BI__builtin_abs:
-  case Builtin::BI__builtin_fabs:
-  case Builtin::BI__builtin_fabsf:
-  case Builtin::BI__builtin_fabsl:
-  case Builtin::BI__builtin_labs:
-  case Builtin::BI__builtin_llabs:
-  case Builtin::BI__builtin_cabs:
-  case Builtin::BI__builtin_cabsf:
-  case Builtin::BI__builtin_cabsl:
-  case Builtin::BIabs:
-  case Builtin::BIlabs:
-  case Builtin::BIllabs:
-  case Builtin::BIfabs:
-  case Builtin::BIfabsf:
-  case Builtin::BIfabsl:
-  case Builtin::BIcabs:
-  case Builtin::BIcabsf:
-  case Builtin::BIcabsl:
-    return FDecl->getBuiltinID();
-  }
-  llvm_unreachable("Unknown Builtin type");
-}
-
-// If the replacement is valid, emit a note with replacement function.
-// Additionally, suggest including the proper header if not already included.
-static void emitReplacement(Sema &S, SourceLocation Loc, SourceRange Range,
-                            unsigned AbsKind, QualType ArgType) {
-  bool EmitHeaderHint = true;
-  const char *HeaderName = nullptr;
-  const char *FunctionName = nullptr;
-  if (S.getLangOpts().CPlusPlus && !ArgType->isAnyComplexType()) {
-    FunctionName = "std::abs";
-    if (ArgType->isIntegralOrEnumerationType()) {
-      HeaderName = "cstdlib";
-    } else if (ArgType->isRealFloatingType()) {
-      HeaderName = "cmath";
-    } else {
-      llvm_unreachable("Invalid Type");
-    }
-
-    // Lookup all std::abs
-    if (NamespaceDecl *Std = S.getStdNamespace()) {
-      LookupResult R(S, &S.Context.Idents.get("abs"), Loc, Sema::LookupAnyName);
-      R.suppressDiagnostics();
-      S.LookupQualifiedName(R, Std);
-
-      for (const auto *I : R) {
-        const FunctionDecl *FDecl = nullptr;
-        if (const UsingShadowDecl *UsingD = dyn_cast<UsingShadowDecl>(I)) {
-          FDecl = dyn_cast<FunctionDecl>(UsingD->getTargetDecl());
-        } else {
-          FDecl = dyn_cast<FunctionDecl>(I);
-        }
-        if (!FDecl)
-          continue;
-
-        // Found std::abs(), check that they are the right ones.
-        if (FDecl->getNumParams() != 1)
-          continue;
-
-        // Check that the parameter type can handle the argument.
-        QualType ParamType = FDecl->getParamDecl(0)->getType();
-        if (getAbsoluteValueKind(ArgType) == getAbsoluteValueKind(ParamType) &&
-            S.Context.getTypeSize(ArgType) <=
-                S.Context.getTypeSize(ParamType)) {
-          // Found a function, don't need the header hint.
-          EmitHeaderHint = false;
-          break;
-        }
-      }
-    }
-  } else {
-    FunctionName = S.Context.BuiltinInfo.getName(AbsKind);
-    HeaderName = S.Context.BuiltinInfo.getHeaderName(AbsKind);
-
-    if (HeaderName) {
-      DeclarationName DN(&S.Context.Idents.get(FunctionName));
-      LookupResult R(S, DN, Loc, Sema::LookupAnyName);
-      R.suppressDiagnostics();
-      S.LookupName(R, S.getCurScope());
-
-      if (R.isSingleResult()) {
-        FunctionDecl *FD = dyn_cast<FunctionDecl>(R.getFoundDecl());
-        if (FD && FD->getBuiltinID() == AbsKind) {
-          EmitHeaderHint = false;
-        } else {
-          return;
-        }
-      } else if (!R.empty()) {
-        return;
-      }
-    }
-  }
-
-  S.Diag(Loc, diag::note_replace_abs_function)
-      << FunctionName << FixItHint::CreateReplacement(Range, FunctionName);
-
-  if (!HeaderName)
-    return;
-
-  if (!EmitHeaderHint)
-    return;
-
-  S.Diag(Loc, diag::note_include_header_or_declare) << HeaderName
-                                                    << FunctionName;
-}
-
-template <std::size_t StrLen>
-static bool IsStdFunction(const FunctionDecl *FDecl,
-                          const char (&Str)[StrLen]) {
-  if (!FDecl)
-    return false;
-  if (!FDecl->getIdentifier() || !FDecl->getIdentifier()->isStr(Str))
-    return false;
-  if (!FDecl->isInStdNamespace())
-    return false;
-
-  return true;
-}
-
-// Warn when using the wrong abs() function.
-void Sema::CheckAbsoluteValueFunction(const CallExpr *Call,
-                                      const FunctionDecl *FDecl) {
-  if (Call->getNumArgs() != 1)
-    return;
-
-  unsigned AbsKind = getAbsoluteValueFunctionKind(FDecl);
-  bool IsStdAbs = IsStdFunction(FDecl, "abs");
-  if (AbsKind == 0 && !IsStdAbs)
-    return;
-
-  QualType ArgType = Call->getArg(0)->IgnoreParenImpCasts()->getType();
-  QualType ParamType = Call->getArg(0)->getType();
-
-  // Unsigned types cannot be negative.  Suggest removing the absolute value
-  // function call.
-  if (ArgType->isUnsignedIntegerType()) {
-    const char *FunctionName =
-        IsStdAbs ? "std::abs" : Context.BuiltinInfo.getName(AbsKind);
-    Diag(Call->getExprLoc(), diag::warn_unsigned_abs) << ArgType << ParamType;
-    Diag(Call->getExprLoc(), diag::note_remove_abs)
-        << FunctionName
-        << FixItHint::CreateRemoval(Call->getCallee()->getSourceRange());
-    return;
-  }
-
-  // Taking the absolute value of a pointer is very suspicious, they probably
-  // wanted to index into an array, dereference a pointer, call a function, etc.
-  if (ArgType->isPointerType() || ArgType->canDecayToPointerType()) {
-    unsigned DiagType = 0;
-    if (ArgType->isFunctionType())
-      DiagType = 1;
-    else if (ArgType->isArrayType())
-      DiagType = 2;
-
-    Diag(Call->getExprLoc(), diag::warn_pointer_abs) << DiagType << ArgType;
-    return;
-  }
-
-  // std::abs has overloads which prevent most of the absolute value problems
-  // from occurring.
-  if (IsStdAbs)
-    return;
-
-  AbsoluteValueKind ArgValueKind = getAbsoluteValueKind(ArgType);
-  AbsoluteValueKind ParamValueKind = getAbsoluteValueKind(ParamType);
-
-  // The argument and parameter are the same kind.  Check if they are the right
-  // size.
-  if (ArgValueKind == ParamValueKind) {
-    if (Context.getTypeSize(ArgType) <= Context.getTypeSize(ParamType))
-      return;
-
-    unsigned NewAbsKind = getBestAbsFunction(Context, ArgType, AbsKind);
-    Diag(Call->getExprLoc(), diag::warn_abs_too_small)
-        << FDecl << ArgType << ParamType;
-
-    if (NewAbsKind == 0)
-      return;
-
-    emitReplacement(*this, Call->getExprLoc(),
-                    Call->getCallee()->getSourceRange(), NewAbsKind, ArgType);
-    return;
-  }
-
-  // ArgValueKind != ParamValueKind
-  // The wrong type of absolute value function was used.  Attempt to find the
-  // proper one.
-  unsigned NewAbsKind = changeAbsFunction(AbsKind, ArgValueKind);
-  NewAbsKind = getBestAbsFunction(Context, ArgType, NewAbsKind);
-  if (NewAbsKind == 0)
-    return;
-
-  Diag(Call->getExprLoc(), diag::warn_wrong_absolute_value_type)
-      << FDecl << ParamValueKind << ArgValueKind;
-
-  emitReplacement(*this, Call->getExprLoc(),
-                  Call->getCallee()->getSourceRange(), NewAbsKind, ArgType);
-}
-
-//===--- CHECK: Warn on use of std::max and unsigned zero. r---------------===//
-void Sema::CheckMaxUnsignedZero(const CallExpr *Call,
-                                const FunctionDecl *FDecl) {
-  if (!Call || !FDecl) return;
-
-  // Ignore template specializations and macros.
-  if (inTemplateInstantiation()) return;
-  if (Call->getExprLoc().isMacroID()) return;
-
-  // Only care about the one template argument, two function parameter std::max
-  if (Call->getNumArgs() != 2) return;
-  if (!IsStdFunction(FDecl, "max")) return;
-  const auto * ArgList = FDecl->getTemplateSpecializationArgs();
-  if (!ArgList) return;
-  if (ArgList->size() != 1) return;
-
-  // Check that template type argument is unsigned integer.
-  const auto& TA = ArgList->get(0);
-  if (TA.getKind() != TemplateArgument::Type) return;
-  QualType ArgType = TA.getAsType();
-  if (!ArgType->isUnsignedIntegerType()) return;
-
-  // See if either argument is a literal zero.
-  auto IsLiteralZeroArg = [](const Expr* E) -> bool {
-    const auto *MTE = dyn_cast<MaterializeTemporaryExpr>(E);
-    if (!MTE) return false;
-    const auto *Num = dyn_cast<IntegerLiteral>(MTE->GetTemporaryExpr());
-    if (!Num) return false;
-    if (Num->getValue() != 0) return false;
-    return true;
-  };
-
-  const Expr *FirstArg = Call->getArg(0);
-  const Expr *SecondArg = Call->getArg(1);
-  const bool IsFirstArgZero = IsLiteralZeroArg(FirstArg);
-  const bool IsSecondArgZero = IsLiteralZeroArg(SecondArg);
-
-  // Only warn when exactly one argument is zero.
-  if (IsFirstArgZero == IsSecondArgZero) return;
-
-  SourceRange FirstRange = FirstArg->getSourceRange();
-  SourceRange SecondRange = SecondArg->getSourceRange();
-
-  SourceRange ZeroRange = IsFirstArgZero ? FirstRange : SecondRange;
-
-  Diag(Call->getExprLoc(), diag::warn_max_unsigned_zero)
-      << IsFirstArgZero << Call->getCallee()->getSourceRange() << ZeroRange;
-
-  // Deduce what parts to remove so that "std::max(0u, foo)" becomes "(foo)".
-  SourceRange RemovalRange;
-  if (IsFirstArgZero) {
-    RemovalRange = SourceRange(FirstRange.getBegin(),
-                               SecondRange.getBegin().getLocWithOffset(-1));
-  } else {
-    RemovalRange = SourceRange(getLocForEndOfToken(FirstRange.getEnd()),
-                               SecondRange.getEnd());
-  }
-
-  Diag(Call->getExprLoc(), diag::note_remove_max_call)
-        << FixItHint::CreateRemoval(Call->getCallee()->getSourceRange())
-        << FixItHint::CreateRemoval(RemovalRange);
-}
-
-//===--- CHECK: Standard memory functions ---------------------------------===//
-
-/// Takes the expression passed to the size_t parameter of functions
-/// such as memcmp, strncat, etc and warns if it's a comparison.
-///
-/// This is to catch typos like `if (memcmp(&a, &b, sizeof(a) > 0))`.
-static bool CheckMemorySizeofForComparison(Sema &S, const Expr *E,
-                                           IdentifierInfo *FnName,
-                                           SourceLocation FnLoc,
-                                           SourceLocation RParenLoc) {
-  const BinaryOperator *Size = dyn_cast<BinaryOperator>(E);
-  if (!Size)
-    return false;
-
-  // if E is binop and op is <=>, >, <, >=, <=, ==, &&, ||:
-  if (!Size->isComparisonOp() && !Size->isLogicalOp())
-    return false;
-
-  SourceRange SizeRange = Size->getSourceRange();
-  S.Diag(Size->getOperatorLoc(), diag::warn_memsize_comparison)
-      << SizeRange << FnName;
-  S.Diag(FnLoc, diag::note_memsize_comparison_paren)
-      << FnName
-      << FixItHint::CreateInsertion(
-             S.getLocForEndOfToken(Size->getLHS()->getEndLoc()), ")")
-      << FixItHint::CreateRemoval(RParenLoc);
-  S.Diag(SizeRange.getBegin(), diag::note_memsize_comparison_cast_silence)
-      << FixItHint::CreateInsertion(SizeRange.getBegin(), "(size_t)(")
-      << FixItHint::CreateInsertion(S.getLocForEndOfToken(SizeRange.getEnd()),
-                                    ")");
-
-  return true;
-}
-
-/// Determine whether the given type is or contains a dynamic class type
-/// (e.g., whether it has a vtable).
-static const CXXRecordDecl *getContainedDynamicClass(QualType T,
-                                                     bool &IsContained) {
-  // Look through array types while ignoring qualifiers.
-  const Type *Ty = T->getBaseElementTypeUnsafe();
-  IsContained = false;
-
-  const CXXRecordDecl *RD = Ty->getAsCXXRecordDecl();
-  RD = RD ? RD->getDefinition() : nullptr;
-  if (!RD || RD->isInvalidDecl())
-    return nullptr;
-
-  if (RD->isDynamicClass())
-    return RD;
-
-  // Check all the fields.  If any bases were dynamic, the class is dynamic.
-  // It's impossible for a class to transitively contain itself by value, so
-  // infinite recursion is impossible.
-  for (auto *FD : RD->fields()) {
-    bool SubContained;
-    if (const CXXRecordDecl *ContainedRD =
-            getContainedDynamicClass(FD->getType(), SubContained)) {
-      IsContained = true;
-      return ContainedRD;
-    }
-  }
-
-  return nullptr;
-}
-
-static const UnaryExprOrTypeTraitExpr *getAsSizeOfExpr(const Expr *E) {
-  if (const auto *Unary = dyn_cast<UnaryExprOrTypeTraitExpr>(E))
-    if (Unary->getKind() == UETT_SizeOf)
-      return Unary;
-  return nullptr;
-}
-
-/// If E is a sizeof expression, returns its argument expression,
-/// otherwise returns NULL.
-static const Expr *getSizeOfExprArg(const Expr *E) {
-  if (const UnaryExprOrTypeTraitExpr *SizeOf = getAsSizeOfExpr(E))
-    if (!SizeOf->isArgumentType())
-      return SizeOf->getArgumentExpr()->IgnoreParenImpCasts();
-  return nullptr;
-}
-
-/// If E is a sizeof expression, returns its argument type.
-static QualType getSizeOfArgType(const Expr *E) {
-  if (const UnaryExprOrTypeTraitExpr *SizeOf = getAsSizeOfExpr(E))
-    return SizeOf->getTypeOfArgument();
-  return QualType();
-}
-
-namespace {
-
-struct SearchNonTrivialToInitializeField
-    : DefaultInitializedTypeVisitor<SearchNonTrivialToInitializeField> {
-  using Super =
-      DefaultInitializedTypeVisitor<SearchNonTrivialToInitializeField>;
-
-  SearchNonTrivialToInitializeField(const Expr *E, Sema &S) : E(E), S(S) {}
-
-  void visitWithKind(QualType::PrimitiveDefaultInitializeKind PDIK, QualType FT,
-                     SourceLocation SL) {
-    if (const auto *AT = asDerived().getContext().getAsArrayType(FT)) {
-      asDerived().visitArray(PDIK, AT, SL);
-      return;
-    }
-
-    Super::visitWithKind(PDIK, FT, SL);
-  }
-
-  void visitARCStrong(QualType FT, SourceLocation SL) {
-    S.DiagRuntimeBehavior(SL, E, S.PDiag(diag::note_nontrivial_field) << 1);
-  }
-  void visitARCWeak(QualType FT, SourceLocation SL) {
-    S.DiagRuntimeBehavior(SL, E, S.PDiag(diag::note_nontrivial_field) << 1);
-  }
-  void visitStruct(QualType FT, SourceLocation SL) {
-    for (const FieldDecl *FD : FT->castAs<RecordType>()->getDecl()->fields())
-      visit(FD->getType(), FD->getLocation());
-  }
-  void visitArray(QualType::PrimitiveDefaultInitializeKind PDIK,
-                  const ArrayType *AT, SourceLocation SL) {
-    visit(getContext().getBaseElementType(AT), SL);
-  }
-  void visitTrivial(QualType FT, SourceLocation SL) {}
-
-  static void diag(QualType RT, const Expr *E, Sema &S) {
-    SearchNonTrivialToInitializeField(E, S).visitStruct(RT, SourceLocation());
-  }
-
-  ASTContext &getContext() { return S.getASTContext(); }
-
-  const Expr *E;
-  Sema &S;
-};
-
-struct SearchNonTrivialToCopyField
-    : CopiedTypeVisitor<SearchNonTrivialToCopyField, false> {
-  using Super = CopiedTypeVisitor<SearchNonTrivialToCopyField, false>;
-
-  SearchNonTrivialToCopyField(const Expr *E, Sema &S) : E(E), S(S) {}
-
-  void visitWithKind(QualType::PrimitiveCopyKind PCK, QualType FT,
-                     SourceLocation SL) {
-    if (const auto *AT = asDerived().getContext().getAsArrayType(FT)) {
-      asDerived().visitArray(PCK, AT, SL);
-      return;
-    }
-
-    Super::visitWithKind(PCK, FT, SL);
-  }
-
-  void visitARCStrong(QualType FT, SourceLocation SL) {
-    S.DiagRuntimeBehavior(SL, E, S.PDiag(diag::note_nontrivial_field) << 0);
-  }
-  void visitARCWeak(QualType FT, SourceLocation SL) {
-    S.DiagRuntimeBehavior(SL, E, S.PDiag(diag::note_nontrivial_field) << 0);
-  }
-  void visitStruct(QualType FT, SourceLocation SL) {
-    for (const FieldDecl *FD : FT->castAs<RecordType>()->getDecl()->fields())
-      visit(FD->getType(), FD->getLocation());
-  }
-  void visitArray(QualType::PrimitiveCopyKind PCK, const ArrayType *AT,
-                  SourceLocation SL) {
-    visit(getContext().getBaseElementType(AT), SL);
-  }
-  void preVisit(QualType::PrimitiveCopyKind PCK, QualType FT,
-                SourceLocation SL) {}
-  void visitTrivial(QualType FT, SourceLocation SL) {}
-  void visitVolatileTrivial(QualType FT, SourceLocation SL) {}
-
-  static void diag(QualType RT, const Expr *E, Sema &S) {
-    SearchNonTrivialToCopyField(E, S).visitStruct(RT, SourceLocation());
-  }
-
-  ASTContext &getContext() { return S.getASTContext(); }
-
-  const Expr *E;
-  Sema &S;
-};
-
-}
-
-/// Detect if \c SizeofExpr is likely to calculate the sizeof an object.
-static bool doesExprLikelyComputeSize(const Expr *SizeofExpr) {
-  SizeofExpr = SizeofExpr->IgnoreParenImpCasts();
-
-  if (const auto *BO = dyn_cast<BinaryOperator>(SizeofExpr)) {
-    if (BO->getOpcode() != BO_Mul && BO->getOpcode() != BO_Add)
-      return false;
-
-    return doesExprLikelyComputeSize(BO->getLHS()) ||
-           doesExprLikelyComputeSize(BO->getRHS());
-  }
-
-  return getAsSizeOfExpr(SizeofExpr) != nullptr;
-}
-
-/// Check if the ArgLoc originated from a macro passed to the call at CallLoc.
-///
-/// \code
-///   #define MACRO 0
-///   foo(MACRO);
-///   foo(0);
-/// \endcode
-///
-/// This should return true for the first call to foo, but not for the second
-/// (regardless of whether foo is a macro or function).
-static bool isArgumentExpandedFromMacro(SourceManager &SM,
-                                        SourceLocation CallLoc,
-                                        SourceLocation ArgLoc) {
-  if (!CallLoc.isMacroID())
-    return SM.getFileID(CallLoc) != SM.getFileID(ArgLoc);
-
-  return SM.getFileID(SM.getImmediateMacroCallerLoc(CallLoc)) !=
-         SM.getFileID(SM.getImmediateMacroCallerLoc(ArgLoc));
-}
-
-/// Diagnose cases like 'memset(buf, sizeof(buf), 0)', which should have the
-/// last two arguments transposed.
-static void CheckMemaccessSize(Sema &S, unsigned BId, const CallExpr *Call) {
-  if (BId != Builtin::BImemset && BId != Builtin::BIbzero)
-    return;
-
-  const Expr *SizeArg =
-    Call->getArg(BId == Builtin::BImemset ? 2 : 1)->IgnoreImpCasts();
-
-  auto isLiteralZero = [](const Expr *E) {
-    return isa<IntegerLiteral>(E) && cast<IntegerLiteral>(E)->getValue() == 0;
-  };
-
-  // If we're memsetting or bzeroing 0 bytes, then this is likely an error.
-  SourceLocation CallLoc = Call->getRParenLoc();
-  SourceManager &SM = S.getSourceManager();
-  if (isLiteralZero(SizeArg) &&
-      !isArgumentExpandedFromMacro(SM, CallLoc, SizeArg->getExprLoc())) {
-
-    SourceLocation DiagLoc = SizeArg->getExprLoc();
-
-    // Some platforms #define bzero to __builtin_memset. See if this is the
-    // case, and if so, emit a better diagnostic.
-    if (BId == Builtin::BIbzero ||
-        (CallLoc.isMacroID() && Lexer::getImmediateMacroName(
-                                    CallLoc, SM, S.getLangOpts()) == "bzero")) {
-      S.Diag(DiagLoc, diag::warn_suspicious_bzero_size);
-      S.Diag(DiagLoc, diag::note_suspicious_bzero_size_silence);
-    } else if (!isLiteralZero(Call->getArg(1)->IgnoreImpCasts())) {
-      S.Diag(DiagLoc, diag::warn_suspicious_sizeof_memset) << 0;
-      S.Diag(DiagLoc, diag::note_suspicious_sizeof_memset_silence) << 0;
-    }
-    return;
-  }
-
-  // If the second argument to a memset is a sizeof expression and the third
-  // isn't, this is also likely an error. This should catch
-  // 'memset(buf, sizeof(buf), 0xff)'.
-  if (BId == Builtin::BImemset &&
-      doesExprLikelyComputeSize(Call->getArg(1)) &&
-      !doesExprLikelyComputeSize(Call->getArg(2))) {
-    SourceLocation DiagLoc = Call->getArg(1)->getExprLoc();
-    S.Diag(DiagLoc, diag::warn_suspicious_sizeof_memset) << 1;
-    S.Diag(DiagLoc, diag::note_suspicious_sizeof_memset_silence) << 1;
-    return;
-  }
-}
-
-/// Check for dangerous or invalid arguments to memset().
-///
-/// This issues warnings on known problematic, dangerous or unspecified
-/// arguments to the standard 'memset', 'memcpy', 'memmove', and 'memcmp'
-/// function calls.
-///
-/// \param Call The call expression to diagnose.
-void Sema::CheckMemaccessArguments(const CallExpr *Call,
-                                   unsigned BId,
-                                   IdentifierInfo *FnName) {
-  assert(BId != 0);
-
-  // It is possible to have a non-standard definition of memset.  Validate
-  // we have enough arguments, and if not, abort further checking.
-  unsigned ExpectedNumArgs =
-      (BId == Builtin::BIstrndup || BId == Builtin::BIbzero ? 2 : 3);
-  if (Call->getNumArgs() < ExpectedNumArgs)
-    return;
-
-  unsigned LastArg = (BId == Builtin::BImemset || BId == Builtin::BIbzero ||
-                      BId == Builtin::BIstrndup ? 1 : 2);
-  unsigned LenArg =
-      (BId == Builtin::BIbzero || BId == Builtin::BIstrndup ? 1 : 2);
-  const Expr *LenExpr = Call->getArg(LenArg)->IgnoreParenImpCasts();
-
-  if (CheckMemorySizeofForComparison(*this, LenExpr, FnName,
-                                     Call->getBeginLoc(), Call->getRParenLoc()))
-    return;
-
-  // Catch cases like 'memset(buf, sizeof(buf), 0)'.
-  CheckMemaccessSize(*this, BId, Call);
-
-  // We have special checking when the length is a sizeof expression.
-  QualType SizeOfArgTy = getSizeOfArgType(LenExpr);
-  const Expr *SizeOfArg = getSizeOfExprArg(LenExpr);
-  llvm::FoldingSetNodeID SizeOfArgID;
-
-  // Although widely used, 'bzero' is not a standard function. Be more strict
-  // with the argument types before allowing diagnostics and only allow the
-  // form bzero(ptr, sizeof(...)).
-  QualType FirstArgTy = Call->getArg(0)->IgnoreParenImpCasts()->getType();
-  if (BId == Builtin::BIbzero && !FirstArgTy->getAs<PointerType>())
-    return;
-
-  for (unsigned ArgIdx = 0; ArgIdx != LastArg; ++ArgIdx) {
-    const Expr *Dest = Call->getArg(ArgIdx)->IgnoreParenImpCasts();
-    SourceRange ArgRange = Call->getArg(ArgIdx)->getSourceRange();
-
-    QualType DestTy = Dest->getType();
-    QualType PointeeTy;
-    if (const PointerType *DestPtrTy = DestTy->getAs<PointerType>()) {
-      PointeeTy = DestPtrTy->getPointeeType();
-
-      // Never warn about void type pointers. This can be used to suppress
-      // false positives.
-      if (PointeeTy->isVoidType())
-        continue;
-
-      // Catch "memset(p, 0, sizeof(p))" -- needs to be sizeof(*p). Do this by
-      // actually comparing the expressions for equality. Because computing the
-      // expression IDs can be expensive, we only do this if the diagnostic is
-      // enabled.
-      if (SizeOfArg &&
-          !Diags.isIgnored(diag::warn_sizeof_pointer_expr_memaccess,
-                           SizeOfArg->getExprLoc())) {
-        // We only compute IDs for expressions if the warning is enabled, and
-        // cache the sizeof arg's ID.
-        if (SizeOfArgID == llvm::FoldingSetNodeID())
-          SizeOfArg->Profile(SizeOfArgID, Context, true);
-        llvm::FoldingSetNodeID DestID;
-        Dest->Profile(DestID, Context, true);
-        if (DestID == SizeOfArgID) {
-          // TODO: For strncpy() and friends, this could suggest sizeof(dst)
-          //       over sizeof(src) as well.
-          unsigned ActionIdx = 0; // Default is to suggest dereferencing.
-          StringRef ReadableName = FnName->getName();
-
-          if (const UnaryOperator *UnaryOp = dyn_cast<UnaryOperator>(Dest))
-            if (UnaryOp->getOpcode() == UO_AddrOf)
-              ActionIdx = 1; // If its an address-of operator, just remove it.
-          if (!PointeeTy->isIncompleteType() &&
-              (Context.getTypeSize(PointeeTy) == Context.getCharWidth()))
-            ActionIdx = 2; // If the pointee's size is sizeof(char),
-                           // suggest an explicit length.
-
-          // If the function is defined as a builtin macro, do not show macro
-          // expansion.
-          SourceLocation SL = SizeOfArg->getExprLoc();
-          SourceRange DSR = Dest->getSourceRange();
-          SourceRange SSR = SizeOfArg->getSourceRange();
-          SourceManager &SM = getSourceManager();
-
-          if (SM.isMacroArgExpansion(SL)) {
-            ReadableName = Lexer::getImmediateMacroName(SL, SM, LangOpts);
-            SL = SM.getSpellingLoc(SL);
-            DSR = SourceRange(SM.getSpellingLoc(DSR.getBegin()),
-                             SM.getSpellingLoc(DSR.getEnd()));
-            SSR = SourceRange(SM.getSpellingLoc(SSR.getBegin()),
-                             SM.getSpellingLoc(SSR.getEnd()));
-          }
-
-          DiagRuntimeBehavior(SL, SizeOfArg,
-                              PDiag(diag::warn_sizeof_pointer_expr_memaccess)
-                                << ReadableName
-                                << PointeeTy
-                                << DestTy
-                                << DSR
-                                << SSR);
-          DiagRuntimeBehavior(SL, SizeOfArg,
-                         PDiag(diag::warn_sizeof_pointer_expr_memaccess_note)
-                                << ActionIdx
-                                << SSR);
-
-          break;
-        }
-      }
-
-      // Also check for cases where the sizeof argument is the exact same
-      // type as the memory argument, and where it points to a user-defined
-      // record type.
-      if (SizeOfArgTy != QualType()) {
-        if (PointeeTy->isRecordType() &&
-            Context.typesAreCompatible(SizeOfArgTy, DestTy)) {
-          DiagRuntimeBehavior(LenExpr->getExprLoc(), Dest,
-                              PDiag(diag::warn_sizeof_pointer_type_memaccess)
-                                << FnName << SizeOfArgTy << ArgIdx
-                                << PointeeTy << Dest->getSourceRange()
-                                << LenExpr->getSourceRange());
-          break;
-        }
-      }
-    } else if (DestTy->isArrayType()) {
-      PointeeTy = DestTy;
-    }
-
-    if (PointeeTy == QualType())
-      continue;
-
-    // Always complain about dynamic classes.
-    bool IsContained;
-    if (const CXXRecordDecl *ContainedRD =
-            getContainedDynamicClass(PointeeTy, IsContained)) {
-
-      unsigned OperationType = 0;
-      const bool IsCmp = BId == Builtin::BImemcmp || BId == Builtin::BIbcmp;
-      // "overwritten" if we're warning about the destination for any call
-      // but memcmp; otherwise a verb appropriate to the call.
-      if (ArgIdx != 0 || IsCmp) {
-        if (BId == Builtin::BImemcpy)
-          OperationType = 1;
-        else if(BId == Builtin::BImemmove)
-          OperationType = 2;
-        else if (IsCmp)
-          OperationType = 3;
-      }
-
-      DiagRuntimeBehavior(Dest->getExprLoc(), Dest,
-                          PDiag(diag::warn_dyn_class_memaccess)
-                              << (IsCmp ? ArgIdx + 2 : ArgIdx) << FnName
-                              << IsContained << ContainedRD << OperationType
-                              << Call->getCallee()->getSourceRange());
-    } else if (PointeeTy.hasNonTrivialObjCLifetime() &&
-             BId != Builtin::BImemset)
-      DiagRuntimeBehavior(
-        Dest->getExprLoc(), Dest,
-        PDiag(diag::warn_arc_object_memaccess)
-          << ArgIdx << FnName << PointeeTy
-          << Call->getCallee()->getSourceRange());
-    else if (const auto *RT = PointeeTy->getAs<RecordType>()) {
-      if ((BId == Builtin::BImemset || BId == Builtin::BIbzero) &&
-          RT->getDecl()->isNonTrivialToPrimitiveDefaultInitialize()) {
-        DiagRuntimeBehavior(Dest->getExprLoc(), Dest,
-                            PDiag(diag::warn_cstruct_memaccess)
-                                << ArgIdx << FnName << PointeeTy << 0);
-        SearchNonTrivialToInitializeField::diag(PointeeTy, Dest, *this);
-      } else if ((BId == Builtin::BImemcpy || BId == Builtin::BImemmove) &&
-                 RT->getDecl()->isNonTrivialToPrimitiveCopy()) {
-        DiagRuntimeBehavior(Dest->getExprLoc(), Dest,
-                            PDiag(diag::warn_cstruct_memaccess)
-                                << ArgIdx << FnName << PointeeTy << 1);
-        SearchNonTrivialToCopyField::diag(PointeeTy, Dest, *this);
-      } else {
-        continue;
-      }
-    } else
-      continue;
-
-    DiagRuntimeBehavior(
-      Dest->getExprLoc(), Dest,
-      PDiag(diag::note_bad_memaccess_silence)
-        << FixItHint::CreateInsertion(ArgRange.getBegin(), "(void*)"));
-    break;
-  }
-}
-
-// A little helper routine: ignore addition and subtraction of integer literals.
-// This intentionally does not ignore all integer constant expressions because
-// we don't want to remove sizeof().
-static const Expr *ignoreLiteralAdditions(const Expr *Ex, ASTContext &Ctx) {
-  Ex = Ex->IgnoreParenCasts();
-
-  while (true) {
-    const BinaryOperator * BO = dyn_cast<BinaryOperator>(Ex);
-    if (!BO || !BO->isAdditiveOp())
-      break;
-
-    const Expr *RHS = BO->getRHS()->IgnoreParenCasts();
-    const Expr *LHS = BO->getLHS()->IgnoreParenCasts();
-
-    if (isa<IntegerLiteral>(RHS))
-      Ex = LHS;
-    else if (isa<IntegerLiteral>(LHS))
-      Ex = RHS;
-    else
-      break;
-  }
-
-  return Ex;
-}
-
-static bool isConstantSizeArrayWithMoreThanOneElement(QualType Ty,
-                                                      ASTContext &Context) {
-  // Only handle constant-sized or VLAs, but not flexible members.
-  if (const ConstantArrayType *CAT = Context.getAsConstantArrayType(Ty)) {
-    // Only issue the FIXIT for arrays of size > 1.
-    if (CAT->getSize().getSExtValue() <= 1)
-      return false;
-  } else if (!Ty->isVariableArrayType()) {
-    return false;
-  }
-  return true;
-}
-
-// Warn if the user has made the 'size' argument to strlcpy or strlcat
-// be the size of the source, instead of the destination.
-void Sema::CheckStrlcpycatArguments(const CallExpr *Call,
-                                    IdentifierInfo *FnName) {
-
-  // Don't crash if the user has the wrong number of arguments
-  unsigned NumArgs = Call->getNumArgs();
-  if ((NumArgs != 3) && (NumArgs != 4))
-    return;
-
-  const Expr *SrcArg = ignoreLiteralAdditions(Call->getArg(1), Context);
-  const Expr *SizeArg = ignoreLiteralAdditions(Call->getArg(2), Context);
-  const Expr *CompareWithSrc = nullptr;
-
-  if (CheckMemorySizeofForComparison(*this, SizeArg, FnName,
-                                     Call->getBeginLoc(), Call->getRParenLoc()))
-    return;
-
-  // Look for 'strlcpy(dst, x, sizeof(x))'
-  if (const Expr *Ex = getSizeOfExprArg(SizeArg))
-    CompareWithSrc = Ex;
-  else {
-    // Look for 'strlcpy(dst, x, strlen(x))'
-    if (const CallExpr *SizeCall = dyn_cast<CallExpr>(SizeArg)) {
-      if (SizeCall->getBuiltinCallee() == Builtin::BIstrlen &&
-          SizeCall->getNumArgs() == 1)
-        CompareWithSrc = ignoreLiteralAdditions(SizeCall->getArg(0), Context);
-    }
-  }
-
-  if (!CompareWithSrc)
-    return;
-
-  // Determine if the argument to sizeof/strlen is equal to the source
-  // argument.  In principle there's all kinds of things you could do
-  // here, for instance creating an == expression and evaluating it with
-  // EvaluateAsBooleanCondition, but this uses a more direct technique:
-  const DeclRefExpr *SrcArgDRE = dyn_cast<DeclRefExpr>(SrcArg);
-  if (!SrcArgDRE)
-    return;
-
-  const DeclRefExpr *CompareWithSrcDRE = dyn_cast<DeclRefExpr>(CompareWithSrc);
-  if (!CompareWithSrcDRE ||
-      SrcArgDRE->getDecl() != CompareWithSrcDRE->getDecl())
-    return;
-
-  const Expr *OriginalSizeArg = Call->getArg(2);
-  Diag(CompareWithSrcDRE->getBeginLoc(), diag::warn_strlcpycat_wrong_size)
-      << OriginalSizeArg->getSourceRange() << FnName;
-
-  // Output a FIXIT hint if the destination is an array (rather than a
-  // pointer to an array).  This could be enhanced to handle some
-  // pointers if we know the actual size, like if DstArg is 'array+2'
-  // we could say 'sizeof(array)-2'.
-  const Expr *DstArg = Call->getArg(0)->IgnoreParenImpCasts();
-  if (!isConstantSizeArrayWithMoreThanOneElement(DstArg->getType(), Context))
-    return;
-
-  SmallString<128> sizeString;
-  llvm::raw_svector_ostream OS(sizeString);
-  OS << "sizeof(";
-  DstArg->printPretty(OS, nullptr, getPrintingPolicy());
-  OS << ")";
-
-  Diag(OriginalSizeArg->getBeginLoc(), diag::note_strlcpycat_wrong_size)
-      << FixItHint::CreateReplacement(OriginalSizeArg->getSourceRange(),
-                                      OS.str());
-}
-
-/// Check if two expressions refer to the same declaration.
-static bool referToTheSameDecl(const Expr *E1, const Expr *E2) {
-  if (const DeclRefExpr *D1 = dyn_cast_or_null<DeclRefExpr>(E1))
-    if (const DeclRefExpr *D2 = dyn_cast_or_null<DeclRefExpr>(E2))
-      return D1->getDecl() == D2->getDecl();
-  return false;
-}
-
-static const Expr *getStrlenExprArg(const Expr *E) {
-  if (const CallExpr *CE = dyn_cast<CallExpr>(E)) {
-    const FunctionDecl *FD = CE->getDirectCallee();
-    if (!FD || FD->getMemoryFunctionKind() != Builtin::BIstrlen)
-      return nullptr;
-    return CE->getArg(0)->IgnoreParenCasts();
-  }
-  return nullptr;
-}
-
-// Warn on anti-patterns as the 'size' argument to strncat.
-// The correct size argument should look like following:
-//   strncat(dst, src, sizeof(dst) - strlen(dest) - 1);
-void Sema::CheckStrncatArguments(const CallExpr *CE,
-                                 IdentifierInfo *FnName) {
-  // Don't crash if the user has the wrong number of arguments.
-  if (CE->getNumArgs() < 3)
-    return;
-  const Expr *DstArg = CE->getArg(0)->IgnoreParenCasts();
-  const Expr *SrcArg = CE->getArg(1)->IgnoreParenCasts();
-  const Expr *LenArg = CE->getArg(2)->IgnoreParenCasts();
-
-  if (CheckMemorySizeofForComparison(*this, LenArg, FnName, CE->getBeginLoc(),
-                                     CE->getRParenLoc()))
-    return;
-
-  // Identify common expressions, which are wrongly used as the size argument
-  // to strncat and may lead to buffer overflows.
-  unsigned PatternType = 0;
-  if (const Expr *SizeOfArg = getSizeOfExprArg(LenArg)) {
-    // - sizeof(dst)
-    if (referToTheSameDecl(SizeOfArg, DstArg))
-      PatternType = 1;
-    // - sizeof(src)
-    else if (referToTheSameDecl(SizeOfArg, SrcArg))
-      PatternType = 2;
-  } else if (const BinaryOperator *BE = dyn_cast<BinaryOperator>(LenArg)) {
-    if (BE->getOpcode() == BO_Sub) {
-      const Expr *L = BE->getLHS()->IgnoreParenCasts();
-      const Expr *R = BE->getRHS()->IgnoreParenCasts();
-      // - sizeof(dst) - strlen(dst)
-      if (referToTheSameDecl(DstArg, getSizeOfExprArg(L)) &&
-          referToTheSameDecl(DstArg, getStrlenExprArg(R)))
-        PatternType = 1;
-      // - sizeof(src) - (anything)
-      else if (referToTheSameDecl(SrcArg, getSizeOfExprArg(L)))
-        PatternType = 2;
-    }
-  }
-
-  if (PatternType == 0)
-    return;
-
-  // Generate the diagnostic.
-  SourceLocation SL = LenArg->getBeginLoc();
-  SourceRange SR = LenArg->getSourceRange();
-  SourceManager &SM = getSourceManager();
-
-  // If the function is defined as a builtin macro, do not show macro expansion.
-  if (SM.isMacroArgExpansion(SL)) {
-    SL = SM.getSpellingLoc(SL);
-    SR = SourceRange(SM.getSpellingLoc(SR.getBegin()),
-                     SM.getSpellingLoc(SR.getEnd()));
-  }
-
-  // Check if the destination is an array (rather than a pointer to an array).
-  QualType DstTy = DstArg->getType();
-  bool isKnownSizeArray = isConstantSizeArrayWithMoreThanOneElement(DstTy,
-                                                                    Context);
-  if (!isKnownSizeArray) {
-    if (PatternType == 1)
-      Diag(SL, diag::warn_strncat_wrong_size) << SR;
-    else
-      Diag(SL, diag::warn_strncat_src_size) << SR;
-    return;
-  }
-
-  if (PatternType == 1)
-    Diag(SL, diag::warn_strncat_large_size) << SR;
-  else
-    Diag(SL, diag::warn_strncat_src_size) << SR;
-
-  SmallString<128> sizeString;
-  llvm::raw_svector_ostream OS(sizeString);
-  OS << "sizeof(";
-  DstArg->printPretty(OS, nullptr, getPrintingPolicy());
-  OS << ") - ";
-  OS << "strlen(";
-  DstArg->printPretty(OS, nullptr, getPrintingPolicy());
-  OS << ") - 1";
-
-  Diag(SL, diag::note_strncat_wrong_size)
-    << FixItHint::CreateReplacement(SR, OS.str());
-}
-
-void
-Sema::CheckReturnValExpr(Expr *RetValExp, QualType lhsType,
-                         SourceLocation ReturnLoc,
-                         bool isObjCMethod,
-                         const AttrVec *Attrs,
-                         const FunctionDecl *FD) {
-  // Check if the return value is null but should not be.
-  if (((Attrs && hasSpecificAttr<ReturnsNonNullAttr>(*Attrs)) ||
-       (!isObjCMethod && isNonNullType(Context, lhsType))) &&
-      CheckNonNullExpr(*this, RetValExp))
-    Diag(ReturnLoc, diag::warn_null_ret)
-      << (isObjCMethod ? 1 : 0) << RetValExp->getSourceRange();
-
-  // C++11 [basic.stc.dynamic.allocation]p4:
-  //   If an allocation function declared with a non-throwing
-  //   exception-specification fails to allocate storage, it shall return
-  //   a null pointer. Any other allocation function that fails to allocate
-  //   storage shall indicate failure only by throwing an exception [...]
-  if (FD) {
-    OverloadedOperatorKind Op = FD->getOverloadedOperator();
-    if (Op == OO_New || Op == OO_Array_New) {
-      const FunctionProtoType *Proto
-        = FD->getType()->castAs<FunctionProtoType>();
-      if (!Proto->isNothrow(/*ResultIfDependent*/true) &&
-          CheckNonNullExpr(*this, RetValExp))
-        Diag(ReturnLoc, diag::warn_operator_new_returns_null)
-          << FD << getLangOpts().CPlusPlus11;
-    }
-  }
-}
-
-//===--- CHECK: Floating-Point comparisons (-Wfloat-equal) ---------------===//
-
-/// Check for comparisons of floating point operands using != and ==.
-/// Issue a warning if these are no self-comparisons, as they are not likely
-/// to do what the programmer intended.
-void Sema::CheckFloatComparison(SourceLocation Loc, Expr* LHS, Expr *RHS) {
-  Expr* LeftExprSansParen = LHS->IgnoreParenImpCasts();
-  Expr* RightExprSansParen = RHS->IgnoreParenImpCasts();
-
-  // Special case: check for x == x (which is OK).
-  // Do not emit warnings for such cases.
-  if (DeclRefExpr* DRL = dyn_cast<DeclRefExpr>(LeftExprSansParen))
-    if (DeclRefExpr* DRR = dyn_cast<DeclRefExpr>(RightExprSansParen))
-      if (DRL->getDecl() == DRR->getDecl())
-        return;
-
-  // Special case: check for comparisons against literals that can be exactly
-  //  represented by APFloat.  In such cases, do not emit a warning.  This
-  //  is a heuristic: often comparison against such literals are used to
-  //  detect if a value in a variable has not changed.  This clearly can
-  //  lead to false negatives.
-  if (FloatingLiteral* FLL = dyn_cast<FloatingLiteral>(LeftExprSansParen)) {
-    if (FLL->isExact())
-      return;
-  } else
-    if (FloatingLiteral* FLR = dyn_cast<FloatingLiteral>(RightExprSansParen))
-      if (FLR->isExact())
-        return;
-
-  // Check for comparisons with builtin types.
-  if (CallExpr* CL = dyn_cast<CallExpr>(LeftExprSansParen))
-    if (CL->getBuiltinCallee())
-      return;
-
-  if (CallExpr* CR = dyn_cast<CallExpr>(RightExprSansParen))
-    if (CR->getBuiltinCallee())
-      return;
-
-  // Emit the diagnostic.
-  Diag(Loc, diag::warn_floatingpoint_eq)
-    << LHS->getSourceRange() << RHS->getSourceRange();
-}
-
-//===--- CHECK: Integer mixed-sign comparisons (-Wsign-compare) --------===//
-//===--- CHECK: Lossy implicit conversions (-Wconversion) --------------===//
-
-namespace {
-
-/// Structure recording the 'active' range of an integer-valued
-/// expression.
-struct IntRange {
-  /// The number of bits active in the int.
-  unsigned Width;
-
-  /// True if the int is known not to have negative values.
-  bool NonNegative;
-
-  IntRange(unsigned Width, bool NonNegative)
-      : Width(Width), NonNegative(NonNegative) {}
-
-  /// Returns the range of the bool type.
-  static IntRange forBoolType() {
-    return IntRange(1, true);
-  }
-
-  /// Returns the range of an opaque value of the given integral type.
-  static IntRange forValueOfType(ASTContext &C, QualType T) {
-    return forValueOfCanonicalType(C,
-                          T->getCanonicalTypeInternal().getTypePtr());
-  }
-
-  /// Returns the range of an opaque value of a canonical integral type.
-  static IntRange forValueOfCanonicalType(ASTContext &C, const Type *T) {
-    assert(T->isCanonicalUnqualified());
-
-    if (const VectorType *VT = dyn_cast<VectorType>(T))
-      T = VT->getElementType().getTypePtr();
-    if (const ComplexType *CT = dyn_cast<ComplexType>(T))
-      T = CT->getElementType().getTypePtr();
-    if (const AtomicType *AT = dyn_cast<AtomicType>(T))
-      T = AT->getValueType().getTypePtr();
-
-    if (!C.getLangOpts().CPlusPlus) {
-      // For enum types in C code, use the underlying datatype.
-      if (const EnumType *ET = dyn_cast<EnumType>(T))
-        T = ET->getDecl()->getIntegerType().getDesugaredType(C).getTypePtr();
-    } else if (const EnumType *ET = dyn_cast<EnumType>(T)) {
-      // For enum types in C++, use the known bit width of the enumerators.
-      EnumDecl *Enum = ET->getDecl();
-      // In C++11, enums can have a fixed underlying type. Use this type to
-      // compute the range.
-      if (Enum->isFixed()) {
-        return IntRange(C.getIntWidth(QualType(T, 0)),
-                        !ET->isSignedIntegerOrEnumerationType());
-      }
-
-      unsigned NumPositive = Enum->getNumPositiveBits();
-      unsigned NumNegative = Enum->getNumNegativeBits();
-
-      if (NumNegative == 0)
-        return IntRange(NumPositive, true/*NonNegative*/);
-      else
-        return IntRange(std::max(NumPositive + 1, NumNegative),
-                        false/*NonNegative*/);
-    }
-
-    const BuiltinType *BT = cast<BuiltinType>(T);
-    assert(BT->isInteger());
-
-    return IntRange(C.getIntWidth(QualType(T, 0)), BT->isUnsignedInteger());
-  }
-
-  /// Returns the "target" range of a canonical integral type, i.e.
-  /// the range of values expressible in the type.
-  ///
-  /// This matches forValueOfCanonicalType except that enums have the
-  /// full range of their type, not the range of their enumerators.
-  static IntRange forTargetOfCanonicalType(ASTContext &C, const Type *T) {
-    assert(T->isCanonicalUnqualified());
-
-    if (const VectorType *VT = dyn_cast<VectorType>(T))
-      T = VT->getElementType().getTypePtr();
-    if (const ComplexType *CT = dyn_cast<ComplexType>(T))
-      T = CT->getElementType().getTypePtr();
-    if (const AtomicType *AT = dyn_cast<AtomicType>(T))
-      T = AT->getValueType().getTypePtr();
-    if (const EnumType *ET = dyn_cast<EnumType>(T))
-      T = C.getCanonicalType(ET->getDecl()->getIntegerType()).getTypePtr();
-
-    const BuiltinType *BT = cast<BuiltinType>(T);
-    assert(BT->isInteger());
-
-    return IntRange(C.getIntWidth(QualType(T, 0)), BT->isUnsignedInteger());
-  }
-
-  /// Returns the supremum of two ranges: i.e. their conservative merge.
-  static IntRange join(IntRange L, IntRange R) {
-    return IntRange(std::max(L.Width, R.Width),
-                    L.NonNegative && R.NonNegative);
-  }
-
-  /// Returns the infinum of two ranges: i.e. their aggressive merge.
-  static IntRange meet(IntRange L, IntRange R) {
-    return IntRange(std::min(L.Width, R.Width),
-                    L.NonNegative || R.NonNegative);
-  }
-};
-
-} // namespace
-
-static IntRange GetValueRange(ASTContext &C, llvm::APSInt &value,
-                              unsigned MaxWidth) {
-  if (value.isSigned() && value.isNegative())
-    return IntRange(value.getMinSignedBits(), false);
-
-  if (value.getBitWidth() > MaxWidth)
-    value = value.trunc(MaxWidth);
-
-  // isNonNegative() just checks the sign bit without considering
-  // signedness.
-  return IntRange(value.getActiveBits(), true);
-}
-
-static IntRange GetValueRange(ASTContext &C, APValue &result, QualType Ty,
-                              unsigned MaxWidth) {
-  if (result.isInt())
-    return GetValueRange(C, result.getInt(), MaxWidth);
-
-  if (result.isVector()) {
-    IntRange R = GetValueRange(C, result.getVectorElt(0), Ty, MaxWidth);
-    for (unsigned i = 1, e = result.getVectorLength(); i != e; ++i) {
-      IntRange El = GetValueRange(C, result.getVectorElt(i), Ty, MaxWidth);
-      R = IntRange::join(R, El);
-    }
-    return R;
-  }
-
-  if (result.isComplexInt()) {
-    IntRange R = GetValueRange(C, result.getComplexIntReal(), MaxWidth);
-    IntRange I = GetValueRange(C, result.getComplexIntImag(), MaxWidth);
-    return IntRange::join(R, I);
-  }
-
-  // This can happen with lossless casts to intptr_t of "based" lvalues.
-  // Assume it might use arbitrary bits.
-  // FIXME: The only reason we need to pass the type in here is to get
-  // the sign right on this one case.  It would be nice if APValue
-  // preserved this.
-  assert(result.isLValue() || result.isAddrLabelDiff());
-  return IntRange(MaxWidth, Ty->isUnsignedIntegerOrEnumerationType());
-}
-
-static QualType GetExprType(const Expr *E) {
-  QualType Ty = E->getType();
-  if (const AtomicType *AtomicRHS = Ty->getAs<AtomicType>())
-    Ty = AtomicRHS->getValueType();
-  return Ty;
-}
-
-/// Pseudo-evaluate the given integer expression, estimating the
-/// range of values it might take.
-///
-/// \param MaxWidth - the width to which the value will be truncated
-static IntRange GetExprRange(ASTContext &C, const Expr *E, unsigned MaxWidth,
-                             bool InConstantContext) {
-  E = E->IgnoreParens();
-
-  // Try a full evaluation first.
-  Expr::EvalResult result;
-  if (E->EvaluateAsRValue(result, C, InConstantContext))
-    return GetValueRange(C, result.Val, GetExprType(E), MaxWidth);
-
-  // I think we only want to look through implicit casts here; if the
-  // user has an explicit widening cast, we should treat the value as
-  // being of the new, wider type.
-  if (const auto *CE = dyn_cast<ImplicitCastExpr>(E)) {
-    if (CE->getCastKind() == CK_NoOp || CE->getCastKind() == CK_LValueToRValue)
-      return GetExprRange(C, CE->getSubExpr(), MaxWidth, InConstantContext);
-
-    IntRange OutputTypeRange = IntRange::forValueOfType(C, GetExprType(CE));
-
-    bool isIntegerCast = CE->getCastKind() == CK_IntegralCast ||
-                         CE->getCastKind() == CK_BooleanToSignedIntegral;
-
-    // Assume that non-integer casts can span the full range of the type.
-    if (!isIntegerCast)
-      return OutputTypeRange;
-
-    IntRange SubRange = GetExprRange(C, CE->getSubExpr(),
-                                     std::min(MaxWidth, OutputTypeRange.Width),
-                                     InConstantContext);
-
-    // Bail out if the subexpr's range is as wide as the cast type.
-    if (SubRange.Width >= OutputTypeRange.Width)
-      return OutputTypeRange;
-
-    // Otherwise, we take the smaller width, and we're non-negative if
-    // either the output type or the subexpr is.
-    return IntRange(SubRange.Width,
-                    SubRange.NonNegative || OutputTypeRange.NonNegative);
-  }
-
-  if (const auto *CO = dyn_cast<ConditionalOperator>(E)) {
-    // If we can fold the condition, just take that operand.
-    bool CondResult;
-    if (CO->getCond()->EvaluateAsBooleanCondition(CondResult, C))
-      return GetExprRange(C,
-                          CondResult ? CO->getTrueExpr() : CO->getFalseExpr(),
-                          MaxWidth, InConstantContext);
-
-    // Otherwise, conservatively merge.
-    IntRange L =
-        GetExprRange(C, CO->getTrueExpr(), MaxWidth, InConstantContext);
-    IntRange R =
-        GetExprRange(C, CO->getFalseExpr(), MaxWidth, InConstantContext);
-    return IntRange::join(L, R);
-  }
-
-  if (const auto *BO = dyn_cast<BinaryOperator>(E)) {
-    switch (BO->getOpcode()) {
-    case BO_Cmp:
-      llvm_unreachable("builtin <=> should have class type");
-
-    // Boolean-valued operations are single-bit and positive.
-    case BO_LAnd:
-    case BO_LOr:
-    case BO_LT:
-    case BO_GT:
-    case BO_LE:
-    case BO_GE:
-    case BO_EQ:
-    case BO_NE:
-      return IntRange::forBoolType();
-
-    // The type of the assignments is the type of the LHS, so the RHS
-    // is not necessarily the same type.
-    case BO_MulAssign:
-    case BO_DivAssign:
-    case BO_RemAssign:
-    case BO_AddAssign:
-    case BO_SubAssign:
-    case BO_XorAssign:
-    case BO_OrAssign:
-      // TODO: bitfields?
-      return IntRange::forValueOfType(C, GetExprType(E));
-
-    // Simple assignments just pass through the RHS, which will have
-    // been coerced to the LHS type.
-    case BO_Assign:
-      // TODO: bitfields?
-      return GetExprRange(C, BO->getRHS(), MaxWidth, InConstantContext);
-
-    // Operations with opaque sources are black-listed.
-    case BO_PtrMemD:
-    case BO_PtrMemI:
-      return IntRange::forValueOfType(C, GetExprType(E));
-
-    // Bitwise-and uses the *infinum* of the two source ranges.
-    case BO_And:
-    case BO_AndAssign:
-      return IntRange::meet(
-          GetExprRange(C, BO->getLHS(), MaxWidth, InConstantContext),
-          GetExprRange(C, BO->getRHS(), MaxWidth, InConstantContext));
-
-    // Left shift gets black-listed based on a judgement call.
-    case BO_Shl:
-      // ...except that we want to treat '1 << (blah)' as logically
-      // positive.  It's an important idiom.
-      if (IntegerLiteral *I
-            = dyn_cast<IntegerLiteral>(BO->getLHS()->IgnoreParenCasts())) {
-        if (I->getValue() == 1) {
-          IntRange R = IntRange::forValueOfType(C, GetExprType(E));
-          return IntRange(R.Width, /*NonNegative*/ true);
-        }
-      }
-      LLVM_FALLTHROUGH;
-
-    case BO_ShlAssign:
-      return IntRange::forValueOfType(C, GetExprType(E));
-
-    // Right shift by a constant can narrow its left argument.
-    case BO_Shr:
-    case BO_ShrAssign: {
-      IntRange L = GetExprRange(C, BO->getLHS(), MaxWidth, InConstantContext);
-
-      // If the shift amount is a positive constant, drop the width by
-      // that much.
-      llvm::APSInt shift;
-      if (BO->getRHS()->isIntegerConstantExpr(shift, C) &&
-          shift.isNonNegative()) {
-        unsigned zext = shift.getZExtValue();
-        if (zext >= L.Width)
-          L.Width = (L.NonNegative ? 0 : 1);
-        else
-          L.Width -= zext;
-      }
-
-      return L;
-    }
-
-    // Comma acts as its right operand.
-    case BO_Comma:
-      return GetExprRange(C, BO->getRHS(), MaxWidth, InConstantContext);
-
-    // Black-list pointer subtractions.
-    case BO_Sub:
-      if (BO->getLHS()->getType()->isPointerType())
-        return IntRange::forValueOfType(C, GetExprType(E));
-      break;
-
-    // The width of a division result is mostly determined by the size
-    // of the LHS.
-    case BO_Div: {
-      // Don't 'pre-truncate' the operands.
-      unsigned opWidth = C.getIntWidth(GetExprType(E));
-      IntRange L = GetExprRange(C, BO->getLHS(), opWidth, InConstantContext);
-
-      // If the divisor is constant, use that.
-      llvm::APSInt divisor;
-      if (BO->getRHS()->isIntegerConstantExpr(divisor, C)) {
-        unsigned log2 = divisor.logBase2(); // floor(log_2(divisor))
-        if (log2 >= L.Width)
-          L.Width = (L.NonNegative ? 0 : 1);
-        else
-          L.Width = std::min(L.Width - log2, MaxWidth);
-        return L;
-      }
-
-      // Otherwise, just use the LHS's width.
-      IntRange R = GetExprRange(C, BO->getRHS(), opWidth, InConstantContext);
-      return IntRange(L.Width, L.NonNegative && R.NonNegative);
-    }
-
-    // The result of a remainder can't be larger than the result of
-    // either side.
-    case BO_Rem: {
-      // Don't 'pre-truncate' the operands.
-      unsigned opWidth = C.getIntWidth(GetExprType(E));
-      IntRange L = GetExprRange(C, BO->getLHS(), opWidth, InConstantContext);
-      IntRange R = GetExprRange(C, BO->getRHS(), opWidth, InConstantContext);
-
-      IntRange meet = IntRange::meet(L, R);
-      meet.Width = std::min(meet.Width, MaxWidth);
-      return meet;
-    }
-
-    // The default behavior is okay for these.
-    case BO_Mul:
-    case BO_Add:
-    case BO_Xor:
-    case BO_Or:
-      break;
-    }
-
-    // The default case is to treat the operation as if it were closed
-    // on the narrowest type that encompasses both operands.
-    IntRange L = GetExprRange(C, BO->getLHS(), MaxWidth, InConstantContext);
-    IntRange R = GetExprRange(C, BO->getRHS(), MaxWidth, InConstantContext);
-    return IntRange::join(L, R);
-  }
-
-  if (const auto *UO = dyn_cast<UnaryOperator>(E)) {
-    switch (UO->getOpcode()) {
-    // Boolean-valued operations are white-listed.
-    case UO_LNot:
-      return IntRange::forBoolType();
-
-    // Operations with opaque sources are black-listed.
-    case UO_Deref:
-    case UO_AddrOf: // should be impossible
-      return IntRange::forValueOfType(C, GetExprType(E));
-
-    default:
-      return GetExprRange(C, UO->getSubExpr(), MaxWidth, InConstantContext);
-    }
-  }
-
-  if (const auto *OVE = dyn_cast<OpaqueValueExpr>(E))
-    return GetExprRange(C, OVE->getSourceExpr(), MaxWidth, InConstantContext);
-
-  if (const auto *BitField = E->getSourceBitField())
-    return IntRange(BitField->getBitWidthValue(C),
-                    BitField->getType()->isUnsignedIntegerOrEnumerationType());
-
-  return IntRange::forValueOfType(C, GetExprType(E));
-}
-
-static IntRange GetExprRange(ASTContext &C, const Expr *E,
-                             bool InConstantContext) {
-  return GetExprRange(C, E, C.getIntWidth(GetExprType(E)), InConstantContext);
-}
-
-/// Checks whether the given value, which currently has the given
-/// source semantics, has the same value when coerced through the
-/// target semantics.
-static bool IsSameFloatAfterCast(const llvm::APFloat &value,
-                                 const llvm::fltSemantics &Src,
-                                 const llvm::fltSemantics &Tgt) {
-  llvm::APFloat truncated = value;
-
-  bool ignored;
-  truncated.convert(Src, llvm::APFloat::rmNearestTiesToEven, &ignored);
-  truncated.convert(Tgt, llvm::APFloat::rmNearestTiesToEven, &ignored);
-
-  return truncated.bitwiseIsEqual(value);
-}
-
-/// Checks whether the given value, which currently has the given
-/// source semantics, has the same value when coerced through the
-/// target semantics.
-///
-/// The value might be a vector of floats (or a complex number).
-static bool IsSameFloatAfterCast(const APValue &value,
-                                 const llvm::fltSemantics &Src,
-                                 const llvm::fltSemantics &Tgt) {
-  if (value.isFloat())
-    return IsSameFloatAfterCast(value.getFloat(), Src, Tgt);
-
-  if (value.isVector()) {
-    for (unsigned i = 0, e = value.getVectorLength(); i != e; ++i)
-      if (!IsSameFloatAfterCast(value.getVectorElt(i), Src, Tgt))
-        return false;
-    return true;
-  }
-
-  assert(value.isComplexFloat());
-  return (IsSameFloatAfterCast(value.getComplexFloatReal(), Src, Tgt) &&
-          IsSameFloatAfterCast(value.getComplexFloatImag(), Src, Tgt));
-}
-
-static void AnalyzeImplicitConversions(Sema &S, Expr *E, SourceLocation CC);
-
-static bool IsEnumConstOrFromMacro(Sema &S, Expr *E) {
-  // Suppress cases where we are comparing against an enum constant.
-  if (const DeclRefExpr *DR =
-      dyn_cast<DeclRefExpr>(E->IgnoreParenImpCasts()))
-    if (isa<EnumConstantDecl>(DR->getDecl()))
-      return true;
-
-  // Suppress cases where the value is expanded from a macro, unless that macro
-  // is how a language represents a boolean literal. This is the case in both C
-  // and Objective-C.
-  SourceLocation BeginLoc = E->getBeginLoc();
-  if (BeginLoc.isMacroID()) {
-    StringRef MacroName = Lexer::getImmediateMacroName(
-        BeginLoc, S.getSourceManager(), S.getLangOpts());
-    return MacroName != "YES" && MacroName != "NO" &&
-           MacroName != "true" && MacroName != "false";
-  }
-
-  return false;
-}
-
-static bool isKnownToHaveUnsignedValue(Expr *E) {
-  return E->getType()->isIntegerType() &&
-         (!E->getType()->isSignedIntegerType() ||
-          !E->IgnoreParenImpCasts()->getType()->isSignedIntegerType());
-}
-
-namespace {
-/// The promoted range of values of a type. In general this has the
-/// following structure:
-///
-///     |-----------| . . . |-----------|
-///     ^           ^       ^           ^
-///    Min       HoleMin  HoleMax      Max
-///
-/// ... where there is only a hole if a signed type is promoted to unsigned
-/// (in which case Min and Max are the smallest and largest representable
-/// values).
-struct PromotedRange {
-  // Min, or HoleMax if there is a hole.
-  llvm::APSInt PromotedMin;
-  // Max, or HoleMin if there is a hole.
-  llvm::APSInt PromotedMax;
-
-  PromotedRange(IntRange R, unsigned BitWidth, bool Unsigned) {
-    if (R.Width == 0)
-      PromotedMin = PromotedMax = llvm::APSInt(BitWidth, Unsigned);
-    else if (R.Width >= BitWidth && !Unsigned) {
-      // Promotion made the type *narrower*. This happens when promoting
-      // a < 32-bit unsigned / <= 32-bit signed bit-field to 'signed int'.
-      // Treat all values of 'signed int' as being in range for now.
-      PromotedMin = llvm::APSInt::getMinValue(BitWidth, Unsigned);
-      PromotedMax = llvm::APSInt::getMaxValue(BitWidth, Unsigned);
-    } else {
-      PromotedMin = llvm::APSInt::getMinValue(R.Width, R.NonNegative)
-                        .extOrTrunc(BitWidth);
-      PromotedMin.setIsUnsigned(Unsigned);
-
-      PromotedMax = llvm::APSInt::getMaxValue(R.Width, R.NonNegative)
-                        .extOrTrunc(BitWidth);
-      PromotedMax.setIsUnsigned(Unsigned);
-    }
-  }
-
-  // Determine whether this range is contiguous (has no hole).
-  bool isContiguous() const { return PromotedMin <= PromotedMax; }
-
-  // Where a constant value is within the range.
-  enum ComparisonResult {
-    LT = 0x1,
-    LE = 0x2,
-    GT = 0x4,
-    GE = 0x8,
-    EQ = 0x10,
-    NE = 0x20,
-    InRangeFlag = 0x40,
-
-    Less = LE | LT | NE,
-    Min = LE | InRangeFlag,
-    InRange = InRangeFlag,
-    Max = GE | InRangeFlag,
-    Greater = GE | GT | NE,
-
-    OnlyValue = LE | GE | EQ | InRangeFlag,
-    InHole = NE
-  };
-
-  ComparisonResult compare(const llvm::APSInt &Value) const {
-    assert(Value.getBitWidth() == PromotedMin.getBitWidth() &&
-           Value.isUnsigned() == PromotedMin.isUnsigned());
-    if (!isContiguous()) {
-      assert(Value.isUnsigned() && "discontiguous range for signed compare");
-      if (Value.isMinValue()) return Min;
-      if (Value.isMaxValue()) return Max;
-      if (Value >= PromotedMin) return InRange;
-      if (Value <= PromotedMax) return InRange;
-      return InHole;
-    }
-
-    switch (llvm::APSInt::compareValues(Value, PromotedMin)) {
-    case -1: return Less;
-    case 0: return PromotedMin == PromotedMax ? OnlyValue : Min;
-    case 1:
-      switch (llvm::APSInt::compareValues(Value, PromotedMax)) {
-      case -1: return InRange;
-      case 0: return Max;
-      case 1: return Greater;
-      }
-    }
-
-    llvm_unreachable("impossible compare result");
-  }
-
-  static llvm::Optional<StringRef>
-  constantValue(BinaryOperatorKind Op, ComparisonResult R, bool ConstantOnRHS) {
-    if (Op == BO_Cmp) {
-      ComparisonResult LTFlag = LT, GTFlag = GT;
-      if (ConstantOnRHS) std::swap(LTFlag, GTFlag);
-
-      if (R & EQ) return StringRef("'std::strong_ordering::equal'");
-      if (R & LTFlag) return StringRef("'std::strong_ordering::less'");
-      if (R & GTFlag) return StringRef("'std::strong_ordering::greater'");
-      return llvm::None;
-    }
-
-    ComparisonResult TrueFlag, FalseFlag;
-    if (Op == BO_EQ) {
-      TrueFlag = EQ;
-      FalseFlag = NE;
-    } else if (Op == BO_NE) {
-      TrueFlag = NE;
-      FalseFlag = EQ;
-    } else {
-      if ((Op == BO_LT || Op == BO_GE) ^ ConstantOnRHS) {
-        TrueFlag = LT;
-        FalseFlag = GE;
-      } else {
-        TrueFlag = GT;
-        FalseFlag = LE;
-      }
-      if (Op == BO_GE || Op == BO_LE)
-        std::swap(TrueFlag, FalseFlag);
-    }
-    if (R & TrueFlag)
-      return StringRef("true");
-    if (R & FalseFlag)
-      return StringRef("false");
-    return llvm::None;
-  }
-};
-}
-
-static bool HasEnumType(Expr *E) {
-  // Strip off implicit integral promotions.
-  while (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)) {
-    if (ICE->getCastKind() != CK_IntegralCast &&
-        ICE->getCastKind() != CK_NoOp)
-      break;
-    E = ICE->getSubExpr();
-  }
-
-  return E->getType()->isEnumeralType();
-}
-
-static int classifyConstantValue(Expr *Constant) {
-  // The values of this enumeration are used in the diagnostics
-  // diag::warn_out_of_range_compare and diag::warn_tautological_bool_compare.
-  enum ConstantValueKind {
-    Miscellaneous = 0,
-    LiteralTrue,
-    LiteralFalse
-  };
-  if (auto *BL = dyn_cast<CXXBoolLiteralExpr>(Constant))
-    return BL->getValue() ? ConstantValueKind::LiteralTrue
-                          : ConstantValueKind::LiteralFalse;
-  return ConstantValueKind::Miscellaneous;
-}
-
-static bool CheckTautologicalComparison(Sema &S, BinaryOperator *E,
-                                        Expr *Constant, Expr *Other,
-                                        const llvm::APSInt &Value,
-                                        bool RhsConstant) {
-  if (S.inTemplateInstantiation())
-    return false;
-
-  Expr *OriginalOther = Other;
-
-  Constant = Constant->IgnoreParenImpCasts();
-  Other = Other->IgnoreParenImpCasts();
-
-  // Suppress warnings on tautological comparisons between values of the same
-  // enumeration type. There are only two ways we could warn on this:
-  //  - If the constant is outside the range of representable values of
-  //    the enumeration. In such a case, we should warn about the cast
-  //    to enumeration type, not about the comparison.
-  //  - If the constant is the maximum / minimum in-range value. For an
-  //    enumeratin type, such comparisons can be meaningful and useful.
-  if (Constant->getType()->isEnumeralType() &&
-      S.Context.hasSameUnqualifiedType(Constant->getType(), Other->getType()))
-    return false;
-
-  // TODO: Investigate using GetExprRange() to get tighter bounds
-  // on the bit ranges.
-  QualType OtherT = Other->getType();
-  if (const auto *AT = OtherT->getAs<AtomicType>())
-    OtherT = AT->getValueType();
-  IntRange OtherRange = IntRange::forValueOfType(S.Context, OtherT);
-
-  // Special case for ObjC BOOL on targets where its a typedef for a signed char
-  // (Namely, macOS).
-  bool IsObjCSignedCharBool = S.getLangOpts().ObjC &&
-                              S.NSAPIObj->isObjCBOOLType(OtherT) &&
-                              OtherT->isSpecificBuiltinType(BuiltinType::SChar);
-
-  // Whether we're treating Other as being a bool because of the form of
-  // expression despite it having another type (typically 'int' in C).
-  bool OtherIsBooleanDespiteType =
-      !OtherT->isBooleanType() && Other->isKnownToHaveBooleanValue();
-  if (OtherIsBooleanDespiteType || IsObjCSignedCharBool)
-    OtherRange = IntRange::forBoolType();
-
-  // Determine the promoted range of the other type and see if a comparison of
-  // the constant against that range is tautological.
-  PromotedRange OtherPromotedRange(OtherRange, Value.getBitWidth(),
-                                   Value.isUnsigned());
-  auto Cmp = OtherPromotedRange.compare(Value);
-  auto Result = PromotedRange::constantValue(E->getOpcode(), Cmp, RhsConstant);
-  if (!Result)
-    return false;
-
-  // Suppress the diagnostic for an in-range comparison if the constant comes
-  // from a macro or enumerator. We don't want to diagnose
-  //
-  //   some_long_value <= INT_MAX
-  //
-  // when sizeof(int) == sizeof(long).
-  bool InRange = Cmp & PromotedRange::InRangeFlag;
-  if (InRange && IsEnumConstOrFromMacro(S, Constant))
-    return false;
-
-  // If this is a comparison to an enum constant, include that
-  // constant in the diagnostic.
-  const EnumConstantDecl *ED = nullptr;
-  if (const DeclRefExpr *DR = dyn_cast<DeclRefExpr>(Constant))
-    ED = dyn_cast<EnumConstantDecl>(DR->getDecl());
-
-  // Should be enough for uint128 (39 decimal digits)
-  SmallString<64> PrettySourceValue;
-  llvm::raw_svector_ostream OS(PrettySourceValue);
-  if (ED) {
-    OS << '\'' << *ED << "' (" << Value << ")";
-  } else if (auto *BL = dyn_cast<ObjCBoolLiteralExpr>(
-               Constant->IgnoreParenImpCasts())) {
-    OS << (BL->getValue() ? "YES" : "NO");
-  } else {
-    OS << Value;
-  }
-
-  if (IsObjCSignedCharBool) {
-    S.DiagRuntimeBehavior(E->getOperatorLoc(), E,
-                          S.PDiag(diag::warn_tautological_compare_objc_bool)
-                              << OS.str() << *Result);
-    return true;
-  }
-
-  // FIXME: We use a somewhat different formatting for the in-range cases and
-  // cases involving boolean values for historical reasons. We should pick a
-  // consistent way of presenting these diagnostics.
-  if (!InRange || Other->isKnownToHaveBooleanValue()) {
-
-    S.DiagRuntimeBehavior(
-        E->getOperatorLoc(), E,
-        S.PDiag(!InRange ? diag::warn_out_of_range_compare
-                         : diag::warn_tautological_bool_compare)
-            << OS.str() << classifyConstantValue(Constant) << OtherT
-            << OtherIsBooleanDespiteType << *Result
-            << E->getLHS()->getSourceRange() << E->getRHS()->getSourceRange());
-  } else {
-    unsigned Diag = (isKnownToHaveUnsignedValue(OriginalOther) && Value == 0)
-                        ? (HasEnumType(OriginalOther)
-                               ? diag::warn_unsigned_enum_always_true_comparison
-                               : diag::warn_unsigned_always_true_comparison)
-                        : diag::warn_tautological_constant_compare;
-
-    S.Diag(E->getOperatorLoc(), Diag)
-        << RhsConstant << OtherT << E->getOpcodeStr() << OS.str() << *Result
-        << E->getLHS()->getSourceRange() << E->getRHS()->getSourceRange();
-  }
-
-  return true;
-}
-
-/// Analyze the operands of the given comparison.  Implements the
-/// fallback case from AnalyzeComparison.
-static void AnalyzeImpConvsInComparison(Sema &S, BinaryOperator *E) {
-  AnalyzeImplicitConversions(S, E->getLHS(), E->getOperatorLoc());
-  AnalyzeImplicitConversions(S, E->getRHS(), E->getOperatorLoc());
-}
-
-/// Implements -Wsign-compare.
-///
-/// \param E the binary operator to check for warnings
-static void AnalyzeComparison(Sema &S, BinaryOperator *E) {
-  // The type the comparison is being performed in.
-  QualType T = E->getLHS()->getType();
-
-  // Only analyze comparison operators where both sides have been converted to
-  // the same type.
-  if (!S.Context.hasSameUnqualifiedType(T, E->getRHS()->getType()))
-    return AnalyzeImpConvsInComparison(S, E);
-
-  // Don't analyze value-dependent comparisons directly.
-  if (E->isValueDependent())
-    return AnalyzeImpConvsInComparison(S, E);
-
-  Expr *LHS = E->getLHS();
-  Expr *RHS = E->getRHS();
-
-  if (T->isIntegralType(S.Context)) {
-    llvm::APSInt RHSValue;
-    llvm::APSInt LHSValue;
-
-    bool IsRHSIntegralLiteral = RHS->isIntegerConstantExpr(RHSValue, S.Context);
-    bool IsLHSIntegralLiteral = LHS->isIntegerConstantExpr(LHSValue, S.Context);
-
-    // We don't care about expressions whose result is a constant.
-    if (IsRHSIntegralLiteral && IsLHSIntegralLiteral)
-      return AnalyzeImpConvsInComparison(S, E);
-
-    // We only care about expressions where just one side is literal
-    if (IsRHSIntegralLiteral ^ IsLHSIntegralLiteral) {
-      // Is the constant on the RHS or LHS?
-      const bool RhsConstant = IsRHSIntegralLiteral;
-      Expr *Const = RhsConstant ? RHS : LHS;
-      Expr *Other = RhsConstant ? LHS : RHS;
-      const llvm::APSInt &Value = RhsConstant ? RHSValue : LHSValue;
-
-      // Check whether an integer constant comparison results in a value
-      // of 'true' or 'false'.
-      if (CheckTautologicalComparison(S, E, Const, Other, Value, RhsConstant))
-        return AnalyzeImpConvsInComparison(S, E);
-    }
-  }
-
-  if (!T->hasUnsignedIntegerRepresentation()) {
-    // We don't do anything special if this isn't an unsigned integral
-    // comparison:  we're only interested in integral comparisons, and
-    // signed comparisons only happen in cases we don't care to warn about.
-    return AnalyzeImpConvsInComparison(S, E);
-  }
-
-  LHS = LHS->IgnoreParenImpCasts();
-  RHS = RHS->IgnoreParenImpCasts();
-
-  if (!S.getLangOpts().CPlusPlus) {
-    // Avoid warning about comparison of integers with different signs when
-    // RHS/LHS has a `typeof(E)` type whose sign is different from the sign of
-    // the type of `E`.
-    if (const auto *TET = dyn_cast<TypeOfExprType>(LHS->getType()))
-      LHS = TET->getUnderlyingExpr()->IgnoreParenImpCasts();
-    if (const auto *TET = dyn_cast<TypeOfExprType>(RHS->getType()))
-      RHS = TET->getUnderlyingExpr()->IgnoreParenImpCasts();
-  }
-
-  // Check to see if one of the (unmodified) operands is of different
-  // signedness.
-  Expr *signedOperand, *unsignedOperand;
-  if (LHS->getType()->hasSignedIntegerRepresentation()) {
-    assert(!RHS->getType()->hasSignedIntegerRepresentation() &&
-           "unsigned comparison between two signed integer expressions?");
-    signedOperand = LHS;
-    unsignedOperand = RHS;
-  } else if (RHS->getType()->hasSignedIntegerRepresentation()) {
-    signedOperand = RHS;
-    unsignedOperand = LHS;
-  } else {
-    return AnalyzeImpConvsInComparison(S, E);
-  }
-
-  // Otherwise, calculate the effective range of the signed operand.
-  IntRange signedRange =
-      GetExprRange(S.Context, signedOperand, S.isConstantEvaluated());
-
-  // Go ahead and analyze implicit conversions in the operands.  Note
-  // that we skip the implicit conversions on both sides.
-  AnalyzeImplicitConversions(S, LHS, E->getOperatorLoc());
-  AnalyzeImplicitConversions(S, RHS, E->getOperatorLoc());
-
-  // If the signed range is non-negative, -Wsign-compare won't fire.
-  if (signedRange.NonNegative)
-    return;
-
-  // For (in)equality comparisons, if the unsigned operand is a
-  // constant which cannot collide with a overflowed signed operand,
-  // then reinterpreting the signed operand as unsigned will not
-  // change the result of the comparison.
-  if (E->isEqualityOp()) {
-    unsigned comparisonWidth = S.Context.getIntWidth(T);
-    IntRange unsignedRange =
-        GetExprRange(S.Context, unsignedOperand, S.isConstantEvaluated());
-
-    // We should never be unable to prove that the unsigned operand is
-    // non-negative.
-    assert(unsignedRange.NonNegative && "unsigned range includes negative?");
-
-    if (unsignedRange.Width < comparisonWidth)
-      return;
-  }
-
-  S.DiagRuntimeBehavior(E->getOperatorLoc(), E,
-                        S.PDiag(diag::warn_mixed_sign_comparison)
-                            << LHS->getType() << RHS->getType()
-                            << LHS->getSourceRange() << RHS->getSourceRange());
-}
-
-/// Analyzes an attempt to assign the given value to a bitfield.
-///
-/// Returns true if there was something fishy about the attempt.
-static bool AnalyzeBitFieldAssignment(Sema &S, FieldDecl *Bitfield, Expr *Init,
-                                      SourceLocation InitLoc) {
-  assert(Bitfield->isBitField());
-  if (Bitfield->isInvalidDecl())
-    return false;
-
-  // White-list bool bitfields.
-  QualType BitfieldType = Bitfield->getType();
-  if (BitfieldType->isBooleanType())
-     return false;
-
-  if (BitfieldType->isEnumeralType()) {
-    EnumDecl *BitfieldEnumDecl = BitfieldType->getAs<EnumType>()->getDecl();
-    // If the underlying enum type was not explicitly specified as an unsigned
-    // type and the enum contain only positive values, MSVC++ will cause an
-    // inconsistency by storing this as a signed type.
-    if (S.getLangOpts().CPlusPlus11 &&
-        !BitfieldEnumDecl->getIntegerTypeSourceInfo() &&
-        BitfieldEnumDecl->getNumPositiveBits() > 0 &&
-        BitfieldEnumDecl->getNumNegativeBits() == 0) {
-      S.Diag(InitLoc, diag::warn_no_underlying_type_specified_for_enum_bitfield)
-        << BitfieldEnumDecl->getNameAsString();
-    }
-  }
-
-  if (Bitfield->getType()->isBooleanType())
-    return false;
-
-  // Ignore value- or type-dependent expressions.
-  if (Bitfield->getBitWidth()->isValueDependent() ||
-      Bitfield->getBitWidth()->isTypeDependent() ||
-      Init->isValueDependent() ||
-      Init->isTypeDependent())
-    return false;
-
-  Expr *OriginalInit = Init->IgnoreParenImpCasts();
-  unsigned FieldWidth = Bitfield->getBitWidthValue(S.Context);
-
-  Expr::EvalResult Result;
-  if (!OriginalInit->EvaluateAsInt(Result, S.Context,
-                                   Expr::SE_AllowSideEffects)) {
-    // The RHS is not constant.  If the RHS has an enum type, make sure the
-    // bitfield is wide enough to hold all the values of the enum without
-    // truncation.
-    if (const auto *EnumTy = OriginalInit->getType()->getAs<EnumType>()) {
-      EnumDecl *ED = EnumTy->getDecl();
-      bool SignedBitfield = BitfieldType->isSignedIntegerType();
-
-      // Enum types are implicitly signed on Windows, so check if there are any
-      // negative enumerators to see if the enum was intended to be signed or
-      // not.
-      bool SignedEnum = ED->getNumNegativeBits() > 0;
-
-      // Check for surprising sign changes when assigning enum values to a
-      // bitfield of different signedness.  If the bitfield is signed and we
-      // have exactly the right number of bits to store this unsigned enum,
-      // suggest changing the enum to an unsigned type. This typically happens
-      // on Windows where unfixed enums always use an underlying type of 'int'.
-      unsigned DiagID = 0;
-      if (SignedEnum && !SignedBitfield) {
-        DiagID = diag::warn_unsigned_bitfield_assigned_signed_enum;
-      } else if (SignedBitfield && !SignedEnum &&
-                 ED->getNumPositiveBits() == FieldWidth) {
-        DiagID = diag::warn_signed_bitfield_enum_conversion;
-      }
-
-      if (DiagID) {
-        S.Diag(InitLoc, DiagID) << Bitfield << ED;
-        TypeSourceInfo *TSI = Bitfield->getTypeSourceInfo();
-        SourceRange TypeRange =
-            TSI ? TSI->getTypeLoc().getSourceRange() : SourceRange();
-        S.Diag(Bitfield->getTypeSpecStartLoc(), diag::note_change_bitfield_sign)
-            << SignedEnum << TypeRange;
-      }
-
-      // Compute the required bitwidth. If the enum has negative values, we need
-      // one more bit than the normal number of positive bits to represent the
-      // sign bit.
-      unsigned BitsNeeded = SignedEnum ? std::max(ED->getNumPositiveBits() + 1,
-                                                  ED->getNumNegativeBits())
-                                       : ED->getNumPositiveBits();
-
-      // Check the bitwidth.
-      if (BitsNeeded > FieldWidth) {
-        Expr *WidthExpr = Bitfield->getBitWidth();
-        S.Diag(InitLoc, diag::warn_bitfield_too_small_for_enum)
-            << Bitfield << ED;
-        S.Diag(WidthExpr->getExprLoc(), diag::note_widen_bitfield)
-            << BitsNeeded << ED << WidthExpr->getSourceRange();
-      }
-    }
-
-    return false;
-  }
-
-  llvm::APSInt Value = Result.Val.getInt();
-
-  unsigned OriginalWidth = Value.getBitWidth();
-
-  if (!Value.isSigned() || Value.isNegative())
-    if (UnaryOperator *UO = dyn_cast<UnaryOperator>(OriginalInit))
-      if (UO->getOpcode() == UO_Minus || UO->getOpcode() == UO_Not)
-        OriginalWidth = Value.getMinSignedBits();
-
-  if (OriginalWidth <= FieldWidth)
-    return false;
-
-  // Compute the value which the bitfield will contain.
-  llvm::APSInt TruncatedValue = Value.trunc(FieldWidth);
-  TruncatedValue.setIsSigned(BitfieldType->isSignedIntegerType());
-
-  // Check whether the stored value is equal to the original value.
-  TruncatedValue = TruncatedValue.extend(OriginalWidth);
-  if (llvm::APSInt::isSameValue(Value, TruncatedValue))
-    return false;
-
-  // Special-case bitfields of width 1: booleans are naturally 0/1, and
-  // therefore don't strictly fit into a signed bitfield of width 1.
-  if (FieldWidth == 1 && Value == 1)
-    return false;
-
-  std::string PrettyValue = Value.toString(10);
-  std::string PrettyTrunc = TruncatedValue.toString(10);
-
-  S.Diag(InitLoc, diag::warn_impcast_bitfield_precision_constant)
-    << PrettyValue << PrettyTrunc << OriginalInit->getType()
-    << Init->getSourceRange();
-
-  return true;
-}
-
-/// Analyze the given simple or compound assignment for warning-worthy
-/// operations.
-static void AnalyzeAssignment(Sema &S, BinaryOperator *E) {
-  // Just recurse on the LHS.
-  AnalyzeImplicitConversions(S, E->getLHS(), E->getOperatorLoc());
-
-  // We want to recurse on the RHS as normal unless we're assigning to
-  // a bitfield.
-  if (FieldDecl *Bitfield = E->getLHS()->getSourceBitField()) {
-    if (AnalyzeBitFieldAssignment(S, Bitfield, E->getRHS(),
-                                  E->getOperatorLoc())) {
-      // Recurse, ignoring any implicit conversions on the RHS.
-      return AnalyzeImplicitConversions(S, E->getRHS()->IgnoreParenImpCasts(),
-                                        E->getOperatorLoc());
-    }
-  }
-
-  AnalyzeImplicitConversions(S, E->getRHS(), E->getOperatorLoc());
-
-  // Diagnose implicitly sequentially-consistent atomic assignment.
-  if (E->getLHS()->getType()->isAtomicType())
-    S.Diag(E->getRHS()->getBeginLoc(), diag::warn_atomic_implicit_seq_cst);
-}
-
-/// Diagnose an implicit cast;  purely a helper for CheckImplicitConversion.
-static void DiagnoseImpCast(Sema &S, Expr *E, QualType SourceType, QualType T,
-                            SourceLocation CContext, unsigned diag,
-                            bool pruneControlFlow = false) {
-  if (pruneControlFlow) {
-    S.DiagRuntimeBehavior(E->getExprLoc(), E,
-                          S.PDiag(diag)
-                              << SourceType << T << E->getSourceRange()
-                              << SourceRange(CContext));
-    return;
-  }
-  S.Diag(E->getExprLoc(), diag)
-    << SourceType << T << E->getSourceRange() << SourceRange(CContext);
-}
-
-/// Diagnose an implicit cast;  purely a helper for CheckImplicitConversion.
-static void DiagnoseImpCast(Sema &S, Expr *E, QualType T,
-                            SourceLocation CContext,
-                            unsigned diag, bool pruneControlFlow = false) {
-  DiagnoseImpCast(S, E, E->getType(), T, CContext, diag, pruneControlFlow);
-}
-
-/// Diagnose an implicit cast from a floating point value to an integer value.
-static void DiagnoseFloatingImpCast(Sema &S, Expr *E, QualType T,
-                                    SourceLocation CContext) {
-  const bool IsBool = T->isSpecificBuiltinType(BuiltinType::Bool);
-  const bool PruneWarnings = S.inTemplateInstantiation();
-
-  Expr *InnerE = E->IgnoreParenImpCasts();
-  // We also want to warn on, e.g., "int i = -1.234"
-  if (UnaryOperator *UOp = dyn_cast<UnaryOperator>(InnerE))
-    if (UOp->getOpcode() == UO_Minus || UOp->getOpcode() == UO_Plus)
-      InnerE = UOp->getSubExpr()->IgnoreParenImpCasts();
-
-  const bool IsLiteral =
-      isa<FloatingLiteral>(E) || isa<FloatingLiteral>(InnerE);
-
-  llvm::APFloat Value(0.0);
-  bool IsConstant =
-    E->EvaluateAsFloat(Value, S.Context, Expr::SE_AllowSideEffects);
-  if (!IsConstant) {
-    return DiagnoseImpCast(S, E, T, CContext,
-                           diag::warn_impcast_float_integer, PruneWarnings);
-  }
-
-  bool isExact = false;
-
-  llvm::APSInt IntegerValue(S.Context.getIntWidth(T),
-                            T->hasUnsignedIntegerRepresentation());
-  llvm::APFloat::opStatus Result = Value.convertToInteger(
-      IntegerValue, llvm::APFloat::rmTowardZero, &isExact);
-
-  if (Result == llvm::APFloat::opOK && isExact) {
-    if (IsLiteral) return;
-    return DiagnoseImpCast(S, E, T, CContext, diag::warn_impcast_float_integer,
-                           PruneWarnings);
-  }
-
-  // Conversion of a floating-point value to a non-bool integer where the
-  // integral part cannot be represented by the integer type is undefined.
-  if (!IsBool && Result == llvm::APFloat::opInvalidOp)
-    return DiagnoseImpCast(
-        S, E, T, CContext,
-        IsLiteral ? diag::warn_impcast_literal_float_to_integer_out_of_range
-                  : diag::warn_impcast_float_to_integer_out_of_range,
-        PruneWarnings);
-
-  unsigned DiagID = 0;
-  if (IsLiteral) {
-    // Warn on floating point literal to integer.
-    DiagID = diag::warn_impcast_literal_float_to_integer;
-  } else if (IntegerValue == 0) {
-    if (Value.isZero()) {  // Skip -0.0 to 0 conversion.
-      return DiagnoseImpCast(S, E, T, CContext,
-                             diag::warn_impcast_float_integer, PruneWarnings);
-    }
-    // Warn on non-zero to zero conversion.
-    DiagID = diag::warn_impcast_float_to_integer_zero;
-  } else {
-    if (IntegerValue.isUnsigned()) {
-      if (!IntegerValue.isMaxValue()) {
-        return DiagnoseImpCast(S, E, T, CContext,
-                               diag::warn_impcast_float_integer, PruneWarnings);
-      }
-    } else {  // IntegerValue.isSigned()
-      if (!IntegerValue.isMaxSignedValue() &&
-          !IntegerValue.isMinSignedValue()) {
-        return DiagnoseImpCast(S, E, T, CContext,
-                               diag::warn_impcast_float_integer, PruneWarnings);
-      }
-    }
-    // Warn on evaluatable floating point expression to integer conversion.
-    DiagID = diag::warn_impcast_float_to_integer;
-  }
-
-  // FIXME: Force the precision of the source value down so we don't print
-  // digits which are usually useless (we don't really care here if we
-  // truncate a digit by accident in edge cases).  Ideally, APFloat::toString
-  // would automatically print the shortest representation, but it's a bit
-  // tricky to implement.
-  SmallString<16> PrettySourceValue;
-  unsigned precision = llvm::APFloat::semanticsPrecision(Value.getSemantics());
-  precision = (precision * 59 + 195) / 196;
-  Value.toString(PrettySourceValue, precision);
-
-  SmallString<16> PrettyTargetValue;
-  if (IsBool)
-    PrettyTargetValue = Value.isZero() ? "false" : "true";
-  else
-    IntegerValue.toString(PrettyTargetValue);
-
-  if (PruneWarnings) {
-    S.DiagRuntimeBehavior(E->getExprLoc(), E,
-                          S.PDiag(DiagID)
-                              << E->getType() << T.getUnqualifiedType()
-                              << PrettySourceValue << PrettyTargetValue
-                              << E->getSourceRange() << SourceRange(CContext));
-  } else {
-    S.Diag(E->getExprLoc(), DiagID)
-        << E->getType() << T.getUnqualifiedType() << PrettySourceValue
-        << PrettyTargetValue << E->getSourceRange() << SourceRange(CContext);
-  }
-}
-
-/// Analyze the given compound assignment for the possible losing of
-/// floating-point precision.
-static void AnalyzeCompoundAssignment(Sema &S, BinaryOperator *E) {
-  assert(isa<CompoundAssignOperator>(E) &&
-         "Must be compound assignment operation");
-  // Recurse on the LHS and RHS in here
-  AnalyzeImplicitConversions(S, E->getLHS(), E->getOperatorLoc());
-  AnalyzeImplicitConversions(S, E->getRHS(), E->getOperatorLoc());
-
-  if (E->getLHS()->getType()->isAtomicType())
-    S.Diag(E->getOperatorLoc(), diag::warn_atomic_implicit_seq_cst);
-
-  // Now check the outermost expression
-  const auto *ResultBT = E->getLHS()->getType()->getAs<BuiltinType>();
-  const auto *RBT = cast<CompoundAssignOperator>(E)
-                        ->getComputationResultType()
-                        ->getAs<BuiltinType>();
-
-  // The below checks assume source is floating point.
-  if (!ResultBT || !RBT || !RBT->isFloatingPoint()) return;
-
-  // If source is floating point but target is an integer.
-  if (ResultBT->isInteger())
-    return DiagnoseImpCast(S, E, E->getRHS()->getType(), E->getLHS()->getType(),
-                           E->getExprLoc(), diag::warn_impcast_float_integer);
-
-  if (!ResultBT->isFloatingPoint())
-    return;
-
-  // If both source and target are floating points, warn about losing precision.
-  int Order = S.getASTContext().getFloatingTypeSemanticOrder(
-      QualType(ResultBT, 0), QualType(RBT, 0));
-  if (Order < 0 && !S.SourceMgr.isInSystemMacro(E->getOperatorLoc()))
-    // warn about dropping FP rank.
-    DiagnoseImpCast(S, E->getRHS(), E->getLHS()->getType(), E->getOperatorLoc(),
-                    diag::warn_impcast_float_result_precision);
-}
-
-static std::string PrettyPrintInRange(const llvm::APSInt &Value,
-                                      IntRange Range) {
-  if (!Range.Width) return "0";
-
-  llvm::APSInt ValueInRange = Value;
-  ValueInRange.setIsSigned(!Range.NonNegative);
-  ValueInRange = ValueInRange.trunc(Range.Width);
-  return ValueInRange.toString(10);
-}
-
-static bool IsImplicitBoolFloatConversion(Sema &S, Expr *Ex, bool ToBool) {
-  if (!isa<ImplicitCastExpr>(Ex))
-    return false;
-
-  Expr *InnerE = Ex->IgnoreParenImpCasts();
-  const Type *Target = S.Context.getCanonicalType(Ex->getType()).getTypePtr();
-  const Type *Source =
-    S.Context.getCanonicalType(InnerE->getType()).getTypePtr();
-  if (Target->isDependentType())
-    return false;
-
-  const BuiltinType *FloatCandidateBT =
-    dyn_cast<BuiltinType>(ToBool ? Source : Target);
-  const Type *BoolCandidateType = ToBool ? Target : Source;
-
-  return (BoolCandidateType->isSpecificBuiltinType(BuiltinType::Bool) &&
-          FloatCandidateBT && (FloatCandidateBT->isFloatingPoint()));
-}
-
-static void CheckImplicitArgumentConversions(Sema &S, CallExpr *TheCall,
-                                             SourceLocation CC) {
-  unsigned NumArgs = TheCall->getNumArgs();
-  for (unsigned i = 0; i < NumArgs; ++i) {
-    Expr *CurrA = TheCall->getArg(i);
-    if (!IsImplicitBoolFloatConversion(S, CurrA, true))
-      continue;
-
-    bool IsSwapped = ((i > 0) &&
-        IsImplicitBoolFloatConversion(S, TheCall->getArg(i - 1), false));
-    IsSwapped |= ((i < (NumArgs - 1)) &&
-        IsImplicitBoolFloatConversion(S, TheCall->getArg(i + 1), false));
-    if (IsSwapped) {
-      // Warn on this floating-point to bool conversion.
-      DiagnoseImpCast(S, CurrA->IgnoreParenImpCasts(),
-                      CurrA->getType(), CC,
-                      diag::warn_impcast_floating_point_to_bool);
-    }
-  }
-}
-
-static void DiagnoseNullConversion(Sema &S, Expr *E, QualType T,
-                                   SourceLocation CC) {
-  if (S.Diags.isIgnored(diag::warn_impcast_null_pointer_to_integer,
-                        E->getExprLoc()))
-    return;
-
-  // Don't warn on functions which have return type nullptr_t.
-  if (isa<CallExpr>(E))
-    return;
-
-  // Check for NULL (GNUNull) or nullptr (CXX11_nullptr).
-  const Expr::NullPointerConstantKind NullKind =
-      E->isNullPointerConstant(S.Context, Expr::NPC_ValueDependentIsNotNull);
-  if (NullKind != Expr::NPCK_GNUNull && NullKind != Expr::NPCK_CXX11_nullptr)
-    return;
-
-  // Return if target type is a safe conversion.
-  if (T->isAnyPointerType() || T->isBlockPointerType() ||
-      T->isMemberPointerType() || !T->isScalarType() || T->isNullPtrType())
-    return;
-
-  SourceLocation Loc = E->getSourceRange().getBegin();
-
-  // Venture through the macro stacks to get to the source of macro arguments.
-  // The new location is a better location than the complete location that was
-  // passed in.
-  Loc = S.SourceMgr.getTopMacroCallerLoc(Loc);
-  CC = S.SourceMgr.getTopMacroCallerLoc(CC);
-
-  // __null is usually wrapped in a macro.  Go up a macro if that is the case.
-  if (NullKind == Expr::NPCK_GNUNull && Loc.isMacroID()) {
-    StringRef MacroName = Lexer::getImmediateMacroNameForDiagnostics(
-        Loc, S.SourceMgr, S.getLangOpts());
-    if (MacroName == "NULL")
-      Loc = S.SourceMgr.getImmediateExpansionRange(Loc).getBegin();
-  }
-
-  // Only warn if the null and context location are in the same macro expansion.
-  if (S.SourceMgr.getFileID(Loc) != S.SourceMgr.getFileID(CC))
-    return;
-
-  S.Diag(Loc, diag::warn_impcast_null_pointer_to_integer)
-      << (NullKind == Expr::NPCK_CXX11_nullptr) << T << SourceRange(CC)
-      << FixItHint::CreateReplacement(Loc,
-                                      S.getFixItZeroLiteralForType(T, Loc));
-}
-
-static void checkObjCArrayLiteral(Sema &S, QualType TargetType,
-                                  ObjCArrayLiteral *ArrayLiteral);
-
-static void
-checkObjCDictionaryLiteral(Sema &S, QualType TargetType,
-                           ObjCDictionaryLiteral *DictionaryLiteral);
-
-/// Check a single element within a collection literal against the
-/// target element type.
-static void checkObjCCollectionLiteralElement(Sema &S,
-                                              QualType TargetElementType,
-                                              Expr *Element,
-                                              unsigned ElementKind) {
-  // Skip a bitcast to 'id' or qualified 'id'.
-  if (auto ICE = dyn_cast<ImplicitCastExpr>(Element)) {
-    if (ICE->getCastKind() == CK_BitCast &&
-        ICE->getSubExpr()->getType()->getAs<ObjCObjectPointerType>())
-      Element = ICE->getSubExpr();
-  }
-
-  QualType ElementType = Element->getType();
-  ExprResult ElementResult(Element);
-  if (ElementType->getAs<ObjCObjectPointerType>() &&
-      S.CheckSingleAssignmentConstraints(TargetElementType,
-                                         ElementResult,
-                                         false, false)
-        != Sema::Compatible) {
-    S.Diag(Element->getBeginLoc(), diag::warn_objc_collection_literal_element)
-        << ElementType << ElementKind << TargetElementType
-        << Element->getSourceRange();
-  }
-
-  if (auto ArrayLiteral = dyn_cast<ObjCArrayLiteral>(Element))
-    checkObjCArrayLiteral(S, TargetElementType, ArrayLiteral);
-  else if (auto DictionaryLiteral = dyn_cast<ObjCDictionaryLiteral>(Element))
-    checkObjCDictionaryLiteral(S, TargetElementType, DictionaryLiteral);
-}
-
-/// Check an Objective-C array literal being converted to the given
-/// target type.
-static void checkObjCArrayLiteral(Sema &S, QualType TargetType,
-                                  ObjCArrayLiteral *ArrayLiteral) {
-  if (!S.NSArrayDecl)
-    return;
-
-  const auto *TargetObjCPtr = TargetType->getAs<ObjCObjectPointerType>();
-  if (!TargetObjCPtr)
-    return;
-
-  if (TargetObjCPtr->isUnspecialized() ||
-      TargetObjCPtr->getInterfaceDecl()->getCanonicalDecl()
-        != S.NSArrayDecl->getCanonicalDecl())
-    return;
-
-  auto TypeArgs = TargetObjCPtr->getTypeArgs();
-  if (TypeArgs.size() != 1)
-    return;
-
-  QualType TargetElementType = TypeArgs[0];
-  for (unsigned I = 0, N = ArrayLiteral->getNumElements(); I != N; ++I) {
-    checkObjCCollectionLiteralElement(S, TargetElementType,
-                                      ArrayLiteral->getElement(I),
-                                      0);
-  }
-}
-
-/// Check an Objective-C dictionary literal being converted to the given
-/// target type.
-static void
-checkObjCDictionaryLiteral(Sema &S, QualType TargetType,
-                           ObjCDictionaryLiteral *DictionaryLiteral) {
-  if (!S.NSDictionaryDecl)
-    return;
-
-  const auto *TargetObjCPtr = TargetType->getAs<ObjCObjectPointerType>();
-  if (!TargetObjCPtr)
-    return;
-
-  if (TargetObjCPtr->isUnspecialized() ||
-      TargetObjCPtr->getInterfaceDecl()->getCanonicalDecl()
-        != S.NSDictionaryDecl->getCanonicalDecl())
-    return;
-
-  auto TypeArgs = TargetObjCPtr->getTypeArgs();
-  if (TypeArgs.size() != 2)
-    return;
-
-  QualType TargetKeyType = TypeArgs[0];
-  QualType TargetObjectType = TypeArgs[1];
-  for (unsigned I = 0, N = DictionaryLiteral->getNumElements(); I != N; ++I) {
-    auto Element = DictionaryLiteral->getKeyValueElement(I);
-    checkObjCCollectionLiteralElement(S, TargetKeyType, Element.Key, 1);
-    checkObjCCollectionLiteralElement(S, TargetObjectType, Element.Value, 2);
-  }
-}
-
-// Helper function to filter out cases for constant width constant conversion.
-// Don't warn on char array initialization or for non-decimal values.
-static bool isSameWidthConstantConversion(Sema &S, Expr *E, QualType T,
-                                          SourceLocation CC) {
-  // If initializing from a constant, and the constant starts with '0',
-  // then it is a binary, octal, or hexadecimal.  Allow these constants
-  // to fill all the bits, even if there is a sign change.
-  if (auto *IntLit = dyn_cast<IntegerLiteral>(E->IgnoreParenImpCasts())) {
-    const char FirstLiteralCharacter =
-        S.getSourceManager().getCharacterData(IntLit->getBeginLoc())[0];
-    if (FirstLiteralCharacter == '0')
-      return false;
-  }
-
-  // If the CC location points to a '{', and the type is char, then assume
-  // assume it is an array initialization.
-  if (CC.isValid() && T->isCharType()) {
-    const char FirstContextCharacter =
-        S.getSourceManager().getCharacterData(CC)[0];
-    if (FirstContextCharacter == '{')
-      return false;
-  }
-
-  return true;
-}
-
-static bool isObjCSignedCharBool(Sema &S, QualType Ty) {
-  return Ty->isSpecificBuiltinType(BuiltinType::SChar) &&
-         S.getLangOpts().ObjC && S.NSAPIObj->isObjCBOOLType(Ty);
-}
-
-static void
-CheckImplicitConversion(Sema &S, Expr *E, QualType T, SourceLocation CC,
-                        bool *ICContext = nullptr) {
-  if (E->isTypeDependent() || E->isValueDependent()) return;
-
-  const Type *Source = S.Context.getCanonicalType(E->getType()).getTypePtr();
-  const Type *Target = S.Context.getCanonicalType(T).getTypePtr();
-  if (Source == Target) return;
-  if (Target->isDependentType()) return;
-
-  // If the conversion context location is invalid don't complain. We also
-  // don't want to emit a warning if the issue occurs from the expansion of
-  // a system macro. The problem is that 'getSpellingLoc()' is slow, so we
-  // delay this check as long as possible. Once we detect we are in that
-  // scenario, we just return.
-  if (CC.isInvalid())
-    return;
-
-  if (Source->isAtomicType())
-    S.Diag(E->getExprLoc(), diag::warn_atomic_implicit_seq_cst);
-
-  // Diagnose implicit casts to bool.
-  if (Target->isSpecificBuiltinType(BuiltinType::Bool)) {
-    if (isa<StringLiteral>(E))
-      // Warn on string literal to bool.  Checks for string literals in logical
-      // and expressions, for instance, assert(0 && "error here"), are
-      // prevented by a check in AnalyzeImplicitConversions().
-      return DiagnoseImpCast(S, E, T, CC,
-                             diag::warn_impcast_string_literal_to_bool);
-    if (isa<ObjCStringLiteral>(E) || isa<ObjCArrayLiteral>(E) ||
-        isa<ObjCDictionaryLiteral>(E) || isa<ObjCBoxedExpr>(E)) {
-      // This covers the literal expressions that evaluate to Objective-C
-      // objects.
-      return DiagnoseImpCast(S, E, T, CC,
-                             diag::warn_impcast_objective_c_literal_to_bool);
-    }
-    if (Source->isPointerType() || Source->canDecayToPointerType()) {
-      // Warn on pointer to bool conversion that is always true.
-      S.DiagnoseAlwaysNonNullPointer(E, Expr::NPCK_NotNull, /*IsEqual*/ false,
-                                     SourceRange(CC));
-    }
-  }
-
-  // If the we're converting a constant to an ObjC BOOL on a platform where BOOL
-  // is a typedef for signed char (macOS), then that constant value has to be 1
-  // or 0.
-  if (isObjCSignedCharBool(S, T) && Source->isIntegralType(S.Context)) {
-    Expr::EvalResult Result;
-    if (E->EvaluateAsInt(Result, S.getASTContext(),
-                         Expr::SE_AllowSideEffects) &&
-        Result.Val.getInt() != 1 && Result.Val.getInt() != 0) {
-      auto Builder = S.Diag(CC, diag::warn_impcast_constant_int_to_objc_bool)
-                     << Result.Val.getInt().toString(10);
-      Expr *Ignored = E->IgnoreImplicit();
-      bool NeedsParens = isa<AbstractConditionalOperator>(Ignored) ||
-                         isa<BinaryOperator>(Ignored) ||
-                         isa<CXXOperatorCallExpr>(Ignored);
-      SourceLocation EndLoc = S.getLocForEndOfToken(E->getEndLoc());
-      if (NeedsParens)
-        Builder << FixItHint::CreateInsertion(E->getBeginLoc(), "(")
-                << FixItHint::CreateInsertion(EndLoc, ")");
-      Builder << FixItHint::CreateInsertion(EndLoc, " ? YES : NO");
-      return;
-    }
-  }
-
-  // Check implicit casts from Objective-C collection literals to specialized
-  // collection types, e.g., NSArray<NSString *> *.
-  if (auto *ArrayLiteral = dyn_cast<ObjCArrayLiteral>(E))
-    checkObjCArrayLiteral(S, QualType(Target, 0), ArrayLiteral);
-  else if (auto *DictionaryLiteral = dyn_cast<ObjCDictionaryLiteral>(E))
-    checkObjCDictionaryLiteral(S, QualType(Target, 0), DictionaryLiteral);
-
-  // Strip vector types.
-  if (isa<VectorType>(Source)) {
-    if (!isa<VectorType>(Target)) {
-      if (S.SourceMgr.isInSystemMacro(CC))
-        return;
-      return DiagnoseImpCast(S, E, T, CC, diag::warn_impcast_vector_scalar);
-    }
-
-    // If the vector cast is cast between two vectors of the same size, it is
-    // a bitcast, not a conversion.
-    if (S.Context.getTypeSize(Source) == S.Context.getTypeSize(Target))
-      return;
-
-    Source = cast<VectorType>(Source)->getElementType().getTypePtr();
-    Target = cast<VectorType>(Target)->getElementType().getTypePtr();
-  }
-  if (auto VecTy = dyn_cast<VectorType>(Target))
-    Target = VecTy->getElementType().getTypePtr();
-
-  // Strip complex types.
-  if (isa<ComplexType>(Source)) {
-    if (!isa<ComplexType>(Target)) {
-      if (S.SourceMgr.isInSystemMacro(CC) || Target->isBooleanType())
-        return;
-
-      return DiagnoseImpCast(S, E, T, CC,
-                             S.getLangOpts().CPlusPlus
-                                 ? diag::err_impcast_complex_scalar
-                                 : diag::warn_impcast_complex_scalar);
-    }
-
-    Source = cast<ComplexType>(Source)->getElementType().getTypePtr();
-    Target = cast<ComplexType>(Target)->getElementType().getTypePtr();
-  }
-
-  const BuiltinType *SourceBT = dyn_cast<BuiltinType>(Source);
-  const BuiltinType *TargetBT = dyn_cast<BuiltinType>(Target);
-
-  // If the source is floating point...
-  if (SourceBT && SourceBT->isFloatingPoint()) {
-    // ...and the target is floating point...
-    if (TargetBT && TargetBT->isFloatingPoint()) {
-      // ...then warn if we're dropping FP rank.
-
-      int Order = S.getASTContext().getFloatingTypeSemanticOrder(
-          QualType(SourceBT, 0), QualType(TargetBT, 0));
-      if (Order > 0) {
-        // Don't warn about float constants that are precisely
-        // representable in the target type.
-        Expr::EvalResult result;
-        if (E->EvaluateAsRValue(result, S.Context)) {
-          // Value might be a float, a float vector, or a float complex.
-          if (IsSameFloatAfterCast(result.Val,
-                   S.Context.getFloatTypeSemantics(QualType(TargetBT, 0)),
-                   S.Context.getFloatTypeSemantics(QualType(SourceBT, 0))))
-            return;
-        }
-
-        if (S.SourceMgr.isInSystemMacro(CC))
-          return;
-
-        DiagnoseImpCast(S, E, T, CC, diag::warn_impcast_float_precision);
-      }
-      // ... or possibly if we're increasing rank, too
-      else if (Order < 0) {
-        if (S.SourceMgr.isInSystemMacro(CC))
-          return;
-
-        DiagnoseImpCast(S, E, T, CC, diag::warn_impcast_double_promotion);
-      }
-      return;
-    }
-
-    // If the target is integral, always warn.
-    if (TargetBT && TargetBT->isInteger()) {
-      if (S.SourceMgr.isInSystemMacro(CC))
-        return;
-
-      DiagnoseFloatingImpCast(S, E, T, CC);
-    }
-
-    // Detect the case where a call result is converted from floating-point to
-    // to bool, and the final argument to the call is converted from bool, to
-    // discover this typo:
-    //
-    //    bool b = fabs(x < 1.0);  // should be "bool b = fabs(x) < 1.0;"
-    //
-    // FIXME: This is an incredibly special case; is there some more general
-    // way to detect this class of misplaced-parentheses bug?
-    if (Target->isBooleanType() && isa<CallExpr>(E)) {
-      // Check last argument of function call to see if it is an
-      // implicit cast from a type matching the type the result
-      // is being cast to.
-      CallExpr *CEx = cast<CallExpr>(E);
-      if (unsigned NumArgs = CEx->getNumArgs()) {
-        Expr *LastA = CEx->getArg(NumArgs - 1);
-        Expr *InnerE = LastA->IgnoreParenImpCasts();
-        if (isa<ImplicitCastExpr>(LastA) &&
-            InnerE->getType()->isBooleanType()) {
-          // Warn on this floating-point to bool conversion
-          DiagnoseImpCast(S, E, T, CC,
-                          diag::warn_impcast_floating_point_to_bool);
-        }
-      }
-    }
-    return;
-  }
-
-  // Valid casts involving fixed point types should be accounted for here.
-  if (Source->isFixedPointType()) {
-    if (Target->isUnsaturatedFixedPointType()) {
-      Expr::EvalResult Result;
-      if (E->EvaluateAsFixedPoint(Result, S.Context, Expr::SE_AllowSideEffects,
-                                  S.isConstantEvaluated())) {
-        APFixedPoint Value = Result.Val.getFixedPoint();
-        APFixedPoint MaxVal = S.Context.getFixedPointMax(T);
-        APFixedPoint MinVal = S.Context.getFixedPointMin(T);
-        if (Value > MaxVal || Value < MinVal) {
-          S.DiagRuntimeBehavior(E->getExprLoc(), E,
-                                S.PDiag(diag::warn_impcast_fixed_point_range)
-                                    << Value.toString() << T
-                                    << E->getSourceRange()
-                                    << clang::SourceRange(CC));
-          return;
-        }
-      }
-    } else if (Target->isIntegerType()) {
-      Expr::EvalResult Result;
-      if (!S.isConstantEvaluated() &&
-          E->EvaluateAsFixedPoint(Result, S.Context,
-                                  Expr::SE_AllowSideEffects)) {
-        APFixedPoint FXResult = Result.Val.getFixedPoint();
-
-        bool Overflowed;
-        llvm::APSInt IntResult = FXResult.convertToInt(
-            S.Context.getIntWidth(T),
-            Target->isSignedIntegerOrEnumerationType(), &Overflowed);
-
-        if (Overflowed) {
-          S.DiagRuntimeBehavior(E->getExprLoc(), E,
-                                S.PDiag(diag::warn_impcast_fixed_point_range)
-                                    << FXResult.toString() << T
-                                    << E->getSourceRange()
-                                    << clang::SourceRange(CC));
-          return;
-        }
-      }
-    }
-  } else if (Target->isUnsaturatedFixedPointType()) {
-    if (Source->isIntegerType()) {
-      Expr::EvalResult Result;
-      if (!S.isConstantEvaluated() &&
-          E->EvaluateAsInt(Result, S.Context, Expr::SE_AllowSideEffects)) {
-        llvm::APSInt Value = Result.Val.getInt();
-
-        bool Overflowed;
-        APFixedPoint IntResult = APFixedPoint::getFromIntValue(
-            Value, S.Context.getFixedPointSemantics(T), &Overflowed);
-
-        if (Overflowed) {
-          S.DiagRuntimeBehavior(E->getExprLoc(), E,
-                                S.PDiag(diag::warn_impcast_fixed_point_range)
-                                    << Value.toString(/*Radix=*/10) << T
-                                    << E->getSourceRange()
-                                    << clang::SourceRange(CC));
-          return;
-        }
-      }
-    }
-  }
-
-  DiagnoseNullConversion(S, E, T, CC);
-
-  S.DiscardMisalignedMemberAddress(Target, E);
-
-  if (!Source->isIntegerType() || !Target->isIntegerType())
-    return;
-
-  // TODO: remove this early return once the false positives for constant->bool
-  // in templates, macros, etc, are reduced or removed.
-  if (Target->isSpecificBuiltinType(BuiltinType::Bool))
-    return;
-
-  IntRange SourceRange = GetExprRange(S.Context, E, S.isConstantEvaluated());
-  IntRange TargetRange = IntRange::forTargetOfCanonicalType(S.Context, Target);
-
-  if (SourceRange.Width > TargetRange.Width) {
-    // If the source is a constant, use a default-on diagnostic.
-    // TODO: this should happen for bitfield stores, too.
-    Expr::EvalResult Result;
-    if (E->EvaluateAsInt(Result, S.Context, Expr::SE_AllowSideEffects,
-                         S.isConstantEvaluated())) {
-      llvm::APSInt Value(32);
-      Value = Result.Val.getInt();
-
-      if (S.SourceMgr.isInSystemMacro(CC))
-        return;
-
-      std::string PrettySourceValue = Value.toString(10);
-      std::string PrettyTargetValue = PrettyPrintInRange(Value, TargetRange);
-
-      S.DiagRuntimeBehavior(
-          E->getExprLoc(), E,
-          S.PDiag(diag::warn_impcast_integer_precision_constant)
-              << PrettySourceValue << PrettyTargetValue << E->getType() << T
-              << E->getSourceRange() << clang::SourceRange(CC));
-      return;
-    }
-
-    // People want to build with -Wshorten-64-to-32 and not -Wconversion.
-    if (S.SourceMgr.isInSystemMacro(CC))
-      return;
-
-    if (TargetRange.Width == 32 && S.Context.getIntWidth(E->getType()) == 64)
-      return DiagnoseImpCast(S, E, T, CC, diag::warn_impcast_integer_64_32,
-                             /* pruneControlFlow */ true);
-    return DiagnoseImpCast(S, E, T, CC, diag::warn_impcast_integer_precision);
-  }
-
-  if (TargetRange.Width > SourceRange.Width) {
-    if (auto *UO = dyn_cast<UnaryOperator>(E))
-      if (UO->getOpcode() == UO_Minus)
-        if (Source->isUnsignedIntegerType()) {
-          if (Target->isUnsignedIntegerType())
-            return DiagnoseImpCast(S, E, T, CC,
-                                   diag::warn_impcast_high_order_zero_bits);
-          if (Target->isSignedIntegerType())
-            return DiagnoseImpCast(S, E, T, CC,
-                                   diag::warn_impcast_nonnegative_result);
-        }
-  }
-
-  if (TargetRange.Width == SourceRange.Width && !TargetRange.NonNegative &&
-      SourceRange.NonNegative && Source->isSignedIntegerType()) {
-    // Warn when doing a signed to signed conversion, warn if the positive
-    // source value is exactly the width of the target type, which will
-    // cause a negative value to be stored.
-
-    Expr::EvalResult Result;
-    if (E->EvaluateAsInt(Result, S.Context, Expr::SE_AllowSideEffects) &&
-        !S.SourceMgr.isInSystemMacro(CC)) {
-      llvm::APSInt Value = Result.Val.getInt();
-      if (isSameWidthConstantConversion(S, E, T, CC)) {
-        std::string PrettySourceValue = Value.toString(10);
-        std::string PrettyTargetValue = PrettyPrintInRange(Value, TargetRange);
-
-        S.DiagRuntimeBehavior(
-            E->getExprLoc(), E,
-            S.PDiag(diag::warn_impcast_integer_precision_constant)
-                << PrettySourceValue << PrettyTargetValue << E->getType() << T
-                << E->getSourceRange() << clang::SourceRange(CC));
-        return;
-      }
-    }
-
-    // Fall through for non-constants to give a sign conversion warning.
-  }
-
-  if ((TargetRange.NonNegative && !SourceRange.NonNegative) ||
-      (!TargetRange.NonNegative && SourceRange.NonNegative &&
-       SourceRange.Width == TargetRange.Width)) {
-    if (S.SourceMgr.isInSystemMacro(CC))
-      return;
-
-    unsigned DiagID = diag::warn_impcast_integer_sign;
-
-    // Traditionally, gcc has warned about this under -Wsign-compare.
-    // We also want to warn about it in -Wconversion.
-    // So if -Wconversion is off, use a completely identical diagnostic
-    // in the sign-compare group.
-    // The conditional-checking code will
-    if (ICContext) {
-      DiagID = diag::warn_impcast_integer_sign_conditional;
-      *ICContext = true;
-    }
-
-    return DiagnoseImpCast(S, E, T, CC, DiagID);
-  }
-
-  // Diagnose conversions between different enumeration types.
-  // In C, we pretend that the type of an EnumConstantDecl is its enumeration
-  // type, to give us better diagnostics.
-  QualType SourceType = E->getType();
-  if (!S.getLangOpts().CPlusPlus) {
-    if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E))
-      if (EnumConstantDecl *ECD = dyn_cast<EnumConstantDecl>(DRE->getDecl())) {
-        EnumDecl *Enum = cast<EnumDecl>(ECD->getDeclContext());
-        SourceType = S.Context.getTypeDeclType(Enum);
-        Source = S.Context.getCanonicalType(SourceType).getTypePtr();
-      }
-  }
-
-  if (const EnumType *SourceEnum = Source->getAs<EnumType>())
-    if (const EnumType *TargetEnum = Target->getAs<EnumType>())
-      if (SourceEnum->getDecl()->hasNameForLinkage() &&
-          TargetEnum->getDecl()->hasNameForLinkage() &&
-          SourceEnum != TargetEnum) {
-        if (S.SourceMgr.isInSystemMacro(CC))
-          return;
-
-        return DiagnoseImpCast(S, E, SourceType, T, CC,
-                               diag::warn_impcast_different_enum_types);
-      }
-}
-
-static void CheckConditionalOperator(Sema &S, ConditionalOperator *E,
-                                     SourceLocation CC, QualType T);
-
-static void CheckConditionalOperand(Sema &S, Expr *E, QualType T,
-                                    SourceLocation CC, bool &ICContext) {
-  E = E->IgnoreParenImpCasts();
-
-  if (isa<ConditionalOperator>(E))
-    return CheckConditionalOperator(S, cast<ConditionalOperator>(E), CC, T);
-
-  AnalyzeImplicitConversions(S, E, CC);
-  if (E->getType() != T)
-    return CheckImplicitConversion(S, E, T, CC, &ICContext);
-}
-
-static void CheckConditionalOperator(Sema &S, ConditionalOperator *E,
-                                     SourceLocation CC, QualType T) {
-  AnalyzeImplicitConversions(S, E->getCond(), E->getQuestionLoc());
-
-  bool Suspicious = false;
-  CheckConditionalOperand(S, E->getTrueExpr(), T, CC, Suspicious);
-  CheckConditionalOperand(S, E->getFalseExpr(), T, CC, Suspicious);
-
-  // If -Wconversion would have warned about either of the candidates
-  // for a signedness conversion to the context type...
-  if (!Suspicious) return;
-
-  // ...but it's currently ignored...
-  if (!S.Diags.isIgnored(diag::warn_impcast_integer_sign_conditional, CC))
-    return;
-
-  // ...then check whether it would have warned about either of the
-  // candidates for a signedness conversion to the condition type.
-  if (E->getType() == T) return;
-
-  Suspicious = false;
-  CheckImplicitConversion(S, E->getTrueExpr()->IgnoreParenImpCasts(),
-                          E->getType(), CC, &Suspicious);
-  if (!Suspicious)
-    CheckImplicitConversion(S, E->getFalseExpr()->IgnoreParenImpCasts(),
-                            E->getType(), CC, &Suspicious);
-}
-
-/// Check conversion of given expression to boolean.
-/// Input argument E is a logical expression.
-static void CheckBoolLikeConversion(Sema &S, Expr *E, SourceLocation CC) {
-  if (S.getLangOpts().Bool)
-    return;
-  if (E->IgnoreParenImpCasts()->getType()->isAtomicType())
-    return;
-  CheckImplicitConversion(S, E->IgnoreParenImpCasts(), S.Context.BoolTy, CC);
-}
-
-/// AnalyzeImplicitConversions - Find and report any interesting
-/// implicit conversions in the given expression.  There are a couple
-/// of competing diagnostics here, -Wconversion and -Wsign-compare.
-static void AnalyzeImplicitConversions(Sema &S, Expr *OrigE,
-                                       SourceLocation CC) {
-  QualType T = OrigE->getType();
-  Expr *E = OrigE->IgnoreParenImpCasts();
-
-  if (E->isTypeDependent() || E->isValueDependent())
-    return;
-
-  // For conditional operators, we analyze the arguments as if they
-  // were being fed directly into the output.
-  if (isa<ConditionalOperator>(E)) {
-    ConditionalOperator *CO = cast<ConditionalOperator>(E);
-    CheckConditionalOperator(S, CO, CC, T);
-    return;
-  }
-
-  // Check implicit argument conversions for function calls.
-  if (CallExpr *Call = dyn_cast<CallExpr>(E))
-    CheckImplicitArgumentConversions(S, Call, CC);
-
-  // Go ahead and check any implicit conversions we might have skipped.
-  // The non-canonical typecheck is just an optimization;
-  // CheckImplicitConversion will filter out dead implicit conversions.
-  if (E->getType() != T)
-    CheckImplicitConversion(S, E, T, CC);
-
-  // Now continue drilling into this expression.
-
-  if (PseudoObjectExpr *POE = dyn_cast<PseudoObjectExpr>(E)) {
-    // The bound subexpressions in a PseudoObjectExpr are not reachable
-    // as transitive children.
-    // FIXME: Use a more uniform representation for this.
-    for (auto *SE : POE->semantics())
-      if (auto *OVE = dyn_cast<OpaqueValueExpr>(SE))
-        AnalyzeImplicitConversions(S, OVE->getSourceExpr(), CC);
-  }
-
-  // Skip past explicit casts.
-  if (auto *CE = dyn_cast<ExplicitCastExpr>(E)) {
-    E = CE->getSubExpr()->IgnoreParenImpCasts();
-    if (!CE->getType()->isVoidType() && E->getType()->isAtomicType())
-      S.Diag(E->getBeginLoc(), diag::warn_atomic_implicit_seq_cst);
-    return AnalyzeImplicitConversions(S, E, CC);
-  }
-
-  if (BinaryOperator *BO = dyn_cast<BinaryOperator>(E)) {
-    // Do a somewhat different check with comparison operators.
-    if (BO->isComparisonOp())
-      return AnalyzeComparison(S, BO);
-
-    // And with simple assignments.
-    if (BO->getOpcode() == BO_Assign)
-      return AnalyzeAssignment(S, BO);
-    // And with compound assignments.
-    if (BO->isAssignmentOp())
-      return AnalyzeCompoundAssignment(S, BO);
-  }
-
-  // These break the otherwise-useful invariant below.  Fortunately,
-  // we don't really need to recurse into them, because any internal
-  // expressions should have been analyzed already when they were
-  // built into statements.
-  if (isa<StmtExpr>(E)) return;
-
-  // Don't descend into unevaluated contexts.
-  if (isa<UnaryExprOrTypeTraitExpr>(E)) return;
-
-  // Now just recurse over the expression's children.
-  CC = E->getExprLoc();
-  BinaryOperator *BO = dyn_cast<BinaryOperator>(E);
-  bool IsLogicalAndOperator = BO && BO->getOpcode() == BO_LAnd;
-  for (Stmt *SubStmt : E->children()) {
-    Expr *ChildExpr = dyn_cast_or_null<Expr>(SubStmt);
-    if (!ChildExpr)
-      continue;
-
-    if (IsLogicalAndOperator &&
-        isa<StringLiteral>(ChildExpr->IgnoreParenImpCasts()))
-      // Ignore checking string literals that are in logical and operators.
-      // This is a common pattern for asserts.
-      continue;
-    AnalyzeImplicitConversions(S, ChildExpr, CC);
-  }
-
-  if (BO && BO->isLogicalOp()) {
-    Expr *SubExpr = BO->getLHS()->IgnoreParenImpCasts();
-    if (!IsLogicalAndOperator || !isa<StringLiteral>(SubExpr))
-      ::CheckBoolLikeConversion(S, SubExpr, BO->getExprLoc());
-
-    SubExpr = BO->getRHS()->IgnoreParenImpCasts();
-    if (!IsLogicalAndOperator || !isa<StringLiteral>(SubExpr))
-      ::CheckBoolLikeConversion(S, SubExpr, BO->getExprLoc());
-  }
-
-  if (const UnaryOperator *U = dyn_cast<UnaryOperator>(E)) {
-    if (U->getOpcode() == UO_LNot) {
-      ::CheckBoolLikeConversion(S, U->getSubExpr(), CC);
-    } else if (U->getOpcode() != UO_AddrOf) {
-      if (U->getSubExpr()->getType()->isAtomicType())
-        S.Diag(U->getSubExpr()->getBeginLoc(),
-               diag::warn_atomic_implicit_seq_cst);
-    }
-  }
-}
-
-/// Diagnose integer type and any valid implicit conversion to it.
-static bool checkOpenCLEnqueueIntType(Sema &S, Expr *E, const QualType &IntT) {
-  // Taking into account implicit conversions,
-  // allow any integer.
-  if (!E->getType()->isIntegerType()) {
-    S.Diag(E->getBeginLoc(),
-           diag::err_opencl_enqueue_kernel_invalid_local_size_type);
-    return true;
-  }
-  // Potentially emit standard warnings for implicit conversions if enabled
-  // using -Wconversion.
-  CheckImplicitConversion(S, E, IntT, E->getBeginLoc());
-  return false;
-}
-
-// Helper function for Sema::DiagnoseAlwaysNonNullPointer.
-// Returns true when emitting a warning about taking the address of a reference.
-static bool CheckForReference(Sema &SemaRef, const Expr *E,
-                              const PartialDiagnostic &PD) {
-  E = E->IgnoreParenImpCasts();
-
-  const FunctionDecl *FD = nullptr;
-
-  if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) {
-    if (!DRE->getDecl()->getType()->isReferenceType())
-      return false;
-  } else if (const MemberExpr *M = dyn_cast<MemberExpr>(E)) {
-    if (!M->getMemberDecl()->getType()->isReferenceType())
-      return false;
-  } else if (const CallExpr *Call = dyn_cast<CallExpr>(E)) {
-    if (!Call->getCallReturnType(SemaRef.Context)->isReferenceType())
-      return false;
-    FD = Call->getDirectCallee();
-  } else {
-    return false;
-  }
-
-  SemaRef.Diag(E->getExprLoc(), PD);
-
-  // If possible, point to location of function.
-  if (FD) {
-    SemaRef.Diag(FD->getLocation(), diag::note_reference_is_return_value) << FD;
-  }
-
-  return true;
-}
-
-// Returns true if the SourceLocation is expanded from any macro body.
-// Returns false if the SourceLocation is invalid, is from not in a macro
-// expansion, or is from expanded from a top-level macro argument.
-static bool IsInAnyMacroBody(const SourceManager &SM, SourceLocation Loc) {
-  if (Loc.isInvalid())
-    return false;
-
-  while (Loc.isMacroID()) {
-    if (SM.isMacroBodyExpansion(Loc))
-      return true;
-    Loc = SM.getImmediateMacroCallerLoc(Loc);
-  }
-
-  return false;
-}
-
-/// Diagnose pointers that are always non-null.
-/// \param E the expression containing the pointer
-/// \param NullKind NPCK_NotNull if E is a cast to bool, otherwise, E is
-/// compared to a null pointer
-/// \param IsEqual True when the comparison is equal to a null pointer
-/// \param Range Extra SourceRange to highlight in the diagnostic
-void Sema::DiagnoseAlwaysNonNullPointer(Expr *E,
-                                        Expr::NullPointerConstantKind NullKind,
-                                        bool IsEqual, SourceRange Range) {
-  if (!E)
-    return;
-
-  // Don't warn inside macros.
-  if (E->getExprLoc().isMacroID()) {
-    const SourceManager &SM = getSourceManager();
-    if (IsInAnyMacroBody(SM, E->getExprLoc()) ||
-        IsInAnyMacroBody(SM, Range.getBegin()))
-      return;
-  }
-  E = E->IgnoreImpCasts();
-
-  const bool IsCompare = NullKind != Expr::NPCK_NotNull;
-
-  if (isa<CXXThisExpr>(E)) {
-    unsigned DiagID = IsCompare ? diag::warn_this_null_compare
-                                : diag::warn_this_bool_conversion;
-    Diag(E->getExprLoc(), DiagID) << E->getSourceRange() << Range << IsEqual;
-    return;
-  }
-
-  bool IsAddressOf = false;
-
-  if (UnaryOperator *UO = dyn_cast<UnaryOperator>(E)) {
-    if (UO->getOpcode() != UO_AddrOf)
-      return;
-    IsAddressOf = true;
-    E = UO->getSubExpr();
-  }
-
-  if (IsAddressOf) {
-    unsigned DiagID = IsCompare
-                          ? diag::warn_address_of_reference_null_compare
-                          : diag::warn_address_of_reference_bool_conversion;
-    PartialDiagnostic PD = PDiag(DiagID) << E->getSourceRange() << Range
-                                         << IsEqual;
-    if (CheckForReference(*this, E, PD)) {
-      return;
-    }
-  }
-
-  auto ComplainAboutNonnullParamOrCall = [&](const Attr *NonnullAttr) {
-    bool IsParam = isa<NonNullAttr>(NonnullAttr);
-    std::string Str;
-    llvm::raw_string_ostream S(Str);
-    E->printPretty(S, nullptr, getPrintingPolicy());
-    unsigned DiagID = IsCompare ? diag::warn_nonnull_expr_compare
-                                : diag::warn_cast_nonnull_to_bool;
-    Diag(E->getExprLoc(), DiagID) << IsParam << S.str()
-      << E->getSourceRange() << Range << IsEqual;
-    Diag(NonnullAttr->getLocation(), diag::note_declared_nonnull) << IsParam;
-  };
-
-  // If we have a CallExpr that is tagged with returns_nonnull, we can complain.
-  if (auto *Call = dyn_cast<CallExpr>(E->IgnoreParenImpCasts())) {
-    if (auto *Callee = Call->getDirectCallee()) {
-      if (const Attr *A = Callee->getAttr<ReturnsNonNullAttr>()) {
-        ComplainAboutNonnullParamOrCall(A);
-        return;
-      }
-    }
-  }
-
-  // Expect to find a single Decl.  Skip anything more complicated.
-  ValueDecl *D = nullptr;
-  if (DeclRefExpr *R = dyn_cast<DeclRefExpr>(E)) {
-    D = R->getDecl();
-  } else if (MemberExpr *M = dyn_cast<MemberExpr>(E)) {
-    D = M->getMemberDecl();
-  }
-
-  // Weak Decls can be null.
-  if (!D || D->isWeak())
-    return;
-
-  // Check for parameter decl with nonnull attribute
-  if (const auto* PV = dyn_cast<ParmVarDecl>(D)) {
-    if (getCurFunction() &&
-        !getCurFunction()->ModifiedNonNullParams.count(PV)) {
-      if (const Attr *A = PV->getAttr<NonNullAttr>()) {
-        ComplainAboutNonnullParamOrCall(A);
-        return;
-      }
-
-      if (const auto *FD = dyn_cast<FunctionDecl>(PV->getDeclContext())) {
-        // Skip function template not specialized yet.
-        if (FD->getTemplatedKind() == FunctionDecl::TK_FunctionTemplate)
-          return;
-        auto ParamIter = llvm::find(FD->parameters(), PV);
-        assert(ParamIter != FD->param_end());
-        unsigned ParamNo = std::distance(FD->param_begin(), ParamIter);
-
-        for (const auto *NonNull : FD->specific_attrs<NonNullAttr>()) {
-          if (!NonNull->args_size()) {
-              ComplainAboutNonnullParamOrCall(NonNull);
-              return;
-          }
-
-          for (const ParamIdx &ArgNo : NonNull->args()) {
-            if (ArgNo.getASTIndex() == ParamNo) {
-              ComplainAboutNonnullParamOrCall(NonNull);
-              return;
-            }
-          }
-        }
-      }
-    }
-  }
-
-  QualType T = D->getType();
-  const bool IsArray = T->isArrayType();
-  const bool IsFunction = T->isFunctionType();
-
-  // Address of function is used to silence the function warning.
-  if (IsAddressOf && IsFunction) {
-    return;
-  }
-
-  // Found nothing.
-  if (!IsAddressOf && !IsFunction && !IsArray)
-    return;
-
-  // Pretty print the expression for the diagnostic.
-  std::string Str;
-  llvm::raw_string_ostream S(Str);
-  E->printPretty(S, nullptr, getPrintingPolicy());
-
-  unsigned DiagID = IsCompare ? diag::warn_null_pointer_compare
-                              : diag::warn_impcast_pointer_to_bool;
-  enum {
-    AddressOf,
-    FunctionPointer,
-    ArrayPointer
-  } DiagType;
-  if (IsAddressOf)
-    DiagType = AddressOf;
-  else if (IsFunction)
-    DiagType = FunctionPointer;
-  else if (IsArray)
-    DiagType = ArrayPointer;
-  else
-    llvm_unreachable("Could not determine diagnostic.");
-  Diag(E->getExprLoc(), DiagID) << DiagType << S.str() << E->getSourceRange()
-                                << Range << IsEqual;
-
-  if (!IsFunction)
-    return;
-
-  // Suggest '&' to silence the function warning.
-  Diag(E->getExprLoc(), diag::note_function_warning_silence)
-      << FixItHint::CreateInsertion(E->getBeginLoc(), "&");
-
-  // Check to see if '()' fixit should be emitted.
-  QualType ReturnType;
-  UnresolvedSet<4> NonTemplateOverloads;
-  tryExprAsCall(*E, ReturnType, NonTemplateOverloads);
-  if (ReturnType.isNull())
-    return;
-
-  if (IsCompare) {
-    // There are two cases here.  If there is null constant, the only suggest
-    // for a pointer return type.  If the null is 0, then suggest if the return
-    // type is a pointer or an integer type.
-    if (!ReturnType->isPointerType()) {
-      if (NullKind == Expr::NPCK_ZeroExpression ||
-          NullKind == Expr::NPCK_ZeroLiteral) {
-        if (!ReturnType->isIntegerType())
-          return;
-      } else {
-        return;
-      }
-    }
-  } else { // !IsCompare
-    // For function to bool, only suggest if the function pointer has bool
-    // return type.
-    if (!ReturnType->isSpecificBuiltinType(BuiltinType::Bool))
-      return;
-  }
-  Diag(E->getExprLoc(), diag::note_function_to_function_call)
-      << FixItHint::CreateInsertion(getLocForEndOfToken(E->getEndLoc()), "()");
-}
-
-/// Diagnoses "dangerous" implicit conversions within the given
-/// expression (which is a full expression).  Implements -Wconversion
-/// and -Wsign-compare.
-///
-/// \param CC the "context" location of the implicit conversion, i.e.
-///   the most location of the syntactic entity requiring the implicit
-///   conversion
-void Sema::CheckImplicitConversions(Expr *E, SourceLocation CC) {
-  // Don't diagnose in unevaluated contexts.
-  if (isUnevaluatedContext())
-    return;
-
-  // Don't diagnose for value- or type-dependent expressions.
-  if (E->isTypeDependent() || E->isValueDependent())
-    return;
-
-  // Check for array bounds violations in cases where the check isn't triggered
-  // elsewhere for other Expr types (like BinaryOperators), e.g. when an
-  // ArraySubscriptExpr is on the RHS of a variable initialization.
-  CheckArrayAccess(E);
-
-  // This is not the right CC for (e.g.) a variable initialization.
-  AnalyzeImplicitConversions(*this, E, CC);
-}
-
-/// CheckBoolLikeConversion - Check conversion of given expression to boolean.
-/// Input argument E is a logical expression.
-void Sema::CheckBoolLikeConversion(Expr *E, SourceLocation CC) {
-  ::CheckBoolLikeConversion(*this, E, CC);
-}
-
-/// Diagnose when expression is an integer constant expression and its evaluation
-/// results in integer overflow
-void Sema::CheckForIntOverflow (Expr *E) {
-  // Use a work list to deal with nested struct initializers.
-  SmallVector<Expr *, 2> Exprs(1, E);
-
-  do {
-    Expr *OriginalE = Exprs.pop_back_val();
-    Expr *E = OriginalE->IgnoreParenCasts();
-
-    if (isa<BinaryOperator>(E)) {
-      E->EvaluateForOverflow(Context);
-      continue;
-    }
-
-    if (auto InitList = dyn_cast<InitListExpr>(OriginalE))
-      Exprs.append(InitList->inits().begin(), InitList->inits().end());
-    else if (isa<ObjCBoxedExpr>(OriginalE))
-      E->EvaluateForOverflow(Context);
-    else if (auto Call = dyn_cast<CallExpr>(E))
-      Exprs.append(Call->arg_begin(), Call->arg_end());
-    else if (auto Message = dyn_cast<ObjCMessageExpr>(E))
-      Exprs.append(Message->arg_begin(), Message->arg_end());
-  } while (!Exprs.empty());
-}
-
-namespace {
-
-/// Visitor for expressions which looks for unsequenced operations on the
-/// same object.
-class SequenceChecker : public EvaluatedExprVisitor<SequenceChecker> {
-  using Base = EvaluatedExprVisitor<SequenceChecker>;
-
-  /// A tree of sequenced regions within an expression. Two regions are
-  /// unsequenced if one is an ancestor or a descendent of the other. When we
-  /// finish processing an expression with sequencing, such as a comma
-  /// expression, we fold its tree nodes into its parent, since they are
-  /// unsequenced with respect to nodes we will visit later.
-  class SequenceTree {
-    struct Value {
-      explicit Value(unsigned Parent) : Parent(Parent), Merged(false) {}
-      unsigned Parent : 31;
-      unsigned Merged : 1;
-    };
-    SmallVector<Value, 8> Values;
-
-  public:
-    /// A region within an expression which may be sequenced with respect
-    /// to some other region.
-    class Seq {
-      friend class SequenceTree;
-
-      unsigned Index;
-
-      explicit Seq(unsigned N) : Index(N) {}
-
-    public:
-      Seq() : Index(0) {}
-    };
-
-    SequenceTree() { Values.push_back(Value(0)); }
-    Seq root() const { return Seq(0); }
-
-    /// Create a new sequence of operations, which is an unsequenced
-    /// subset of \p Parent. This sequence of operations is sequenced with
-    /// respect to other children of \p Parent.
-    Seq allocate(Seq Parent) {
-      Values.push_back(Value(Parent.Index));
-      return Seq(Values.size() - 1);
-    }
-
-    /// Merge a sequence of operations into its parent.
-    void merge(Seq S) {
-      Values[S.Index].Merged = true;
-    }
-
-    /// Determine whether two operations are unsequenced. This operation
-    /// is asymmetric: \p Cur should be the more recent sequence, and \p Old
-    /// should have been merged into its parent as appropriate.
-    bool isUnsequenced(Seq Cur, Seq Old) {
-      unsigned C = representative(Cur.Index);
-      unsigned Target = representative(Old.Index);
-      while (C >= Target) {
-        if (C == Target)
-          return true;
-        C = Values[C].Parent;
-      }
-      return false;
-    }
-
-  private:
-    /// Pick a representative for a sequence.
-    unsigned representative(unsigned K) {
-      if (Values[K].Merged)
-        // Perform path compression as we go.
-        return Values[K].Parent = representative(Values[K].Parent);
-      return K;
-    }
-  };
-
-  /// An object for which we can track unsequenced uses.
-  using Object = NamedDecl *;
-
-  /// Different flavors of object usage which we track. We only track the
-  /// least-sequenced usage of each kind.
-  enum UsageKind {
-    /// A read of an object. Multiple unsequenced reads are OK.
-    UK_Use,
-
-    /// A modification of an object which is sequenced before the value
-    /// computation of the expression, such as ++n in C++.
-    UK_ModAsValue,
-
-    /// A modification of an object which is not sequenced before the value
-    /// computation of the expression, such as n++.
-    UK_ModAsSideEffect,
-
-    UK_Count = UK_ModAsSideEffect + 1
-  };
-
-  struct Usage {
-    Expr *Use;
-    SequenceTree::Seq Seq;
-
-    Usage() : Use(nullptr), Seq() {}
-  };
-
-  struct UsageInfo {
-    Usage Uses[UK_Count];
-
-    /// Have we issued a diagnostic for this variable already?
-    bool Diagnosed;
-
-    UsageInfo() : Uses(), Diagnosed(false) {}
-  };
-  using UsageInfoMap = llvm::SmallDenseMap<Object, UsageInfo, 16>;
-
-  Sema &SemaRef;
-
-  /// Sequenced regions within the expression.
-  SequenceTree Tree;
-
-  /// Declaration modifications and references which we have seen.
-  UsageInfoMap UsageMap;
-
-  /// The region we are currently within.
-  SequenceTree::Seq Region;
-
-  /// Filled in with declarations which were modified as a side-effect
-  /// (that is, post-increment operations).
-  SmallVectorImpl<std::pair<Object, Usage>> *ModAsSideEffect = nullptr;
-
-  /// Expressions to check later. We defer checking these to reduce
-  /// stack usage.
-  SmallVectorImpl<Expr *> &WorkList;
-
-  /// RAII object wrapping the visitation of a sequenced subexpression of an
-  /// expression. At the end of this process, the side-effects of the evaluation
-  /// become sequenced with respect to the value computation of the result, so
-  /// we downgrade any UK_ModAsSideEffect within the evaluation to
-  /// UK_ModAsValue.
-  struct SequencedSubexpression {
-    SequencedSubexpression(SequenceChecker &Self)
-      : Self(Self), OldModAsSideEffect(Self.ModAsSideEffect) {
-      Self.ModAsSideEffect = &ModAsSideEffect;
-    }
-
-    ~SequencedSubexpression() {
-      for (auto &M : llvm::reverse(ModAsSideEffect)) {
-        UsageInfo &U = Self.UsageMap[M.first];
-        auto &SideEffectUsage = U.Uses[UK_ModAsSideEffect];
-        Self.addUsage(U, M.first, SideEffectUsage.Use, UK_ModAsValue);
-        SideEffectUsage = M.second;
-      }
-      Self.ModAsSideEffect = OldModAsSideEffect;
-    }
-
-    SequenceChecker &Self;
-    SmallVector<std::pair<Object, Usage>, 4> ModAsSideEffect;
-    SmallVectorImpl<std::pair<Object, Usage>> *OldModAsSideEffect;
-  };
-
-  /// RAII object wrapping the visitation of a subexpression which we might
-  /// choose to evaluate as a constant. If any subexpression is evaluated and
-  /// found to be non-constant, this allows us to suppress the evaluation of
-  /// the outer expression.
-  class EvaluationTracker {
-  public:
-    EvaluationTracker(SequenceChecker &Self)
-        : Self(Self), Prev(Self.EvalTracker) {
-      Self.EvalTracker = this;
-    }
-
-    ~EvaluationTracker() {
-      Self.EvalTracker = Prev;
-      if (Prev)
-        Prev->EvalOK &= EvalOK;
-    }
-
-    bool evaluate(const Expr *E, bool &Result) {
-      if (!EvalOK || E->isValueDependent())
-        return false;
-      EvalOK = E->EvaluateAsBooleanCondition(
-          Result, Self.SemaRef.Context, Self.SemaRef.isConstantEvaluated());
-      return EvalOK;
-    }
-
-  private:
-    SequenceChecker &Self;
-    EvaluationTracker *Prev;
-    bool EvalOK = true;
-  } *EvalTracker = nullptr;
-
-  /// Find the object which is produced by the specified expression,
-  /// if any.
-  Object getObject(Expr *E, bool Mod) const {
-    E = E->IgnoreParenCasts();
-    if (UnaryOperator *UO = dyn_cast<UnaryOperator>(E)) {
-      if (Mod && (UO->getOpcode() == UO_PreInc || UO->getOpcode() == UO_PreDec))
-        return getObject(UO->getSubExpr(), Mod);
-    } else if (BinaryOperator *BO = dyn_cast<BinaryOperator>(E)) {
-      if (BO->getOpcode() == BO_Comma)
-        return getObject(BO->getRHS(), Mod);
-      if (Mod && BO->isAssignmentOp())
-        return getObject(BO->getLHS(), Mod);
-    } else if (MemberExpr *ME = dyn_cast<MemberExpr>(E)) {
-      // FIXME: Check for more interesting cases, like "x.n = ++x.n".
-      if (isa<CXXThisExpr>(ME->getBase()->IgnoreParenCasts()))
-        return ME->getMemberDecl();
-    } else if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E))
-      // FIXME: If this is a reference, map through to its value.
-      return DRE->getDecl();
-    return nullptr;
-  }
-
-  /// Note that an object was modified or used by an expression.
-  void addUsage(UsageInfo &UI, Object O, Expr *Ref, UsageKind UK) {
-    Usage &U = UI.Uses[UK];
-    if (!U.Use || !Tree.isUnsequenced(Region, U.Seq)) {
-      if (UK == UK_ModAsSideEffect && ModAsSideEffect)
-        ModAsSideEffect->push_back(std::make_pair(O, U));
-      U.Use = Ref;
-      U.Seq = Region;
-    }
-  }
-
-  /// Check whether a modification or use conflicts with a prior usage.
-  void checkUsage(Object O, UsageInfo &UI, Expr *Ref, UsageKind OtherKind,
-                  bool IsModMod) {
-    if (UI.Diagnosed)
-      return;
-
-    const Usage &U = UI.Uses[OtherKind];
-    if (!U.Use || !Tree.isUnsequenced(Region, U.Seq))
-      return;
-
-    Expr *Mod = U.Use;
-    Expr *ModOrUse = Ref;
-    if (OtherKind == UK_Use)
-      std::swap(Mod, ModOrUse);
-
-    SemaRef.DiagRuntimeBehavior(
-        Mod->getExprLoc(), {Mod, ModOrUse},
-        SemaRef.PDiag(IsModMod ? diag::warn_unsequenced_mod_mod
-                               : diag::warn_unsequenced_mod_use)
-            << O << SourceRange(ModOrUse->getExprLoc()));
-    UI.Diagnosed = true;
-  }
-
-  void notePreUse(Object O, Expr *Use) {
-    UsageInfo &U = UsageMap[O];
-    // Uses conflict with other modifications.
-    checkUsage(O, U, Use, UK_ModAsValue, false);
-  }
-
-  void notePostUse(Object O, Expr *Use) {
-    UsageInfo &U = UsageMap[O];
-    checkUsage(O, U, Use, UK_ModAsSideEffect, false);
-    addUsage(U, O, Use, UK_Use);
-  }
-
-  void notePreMod(Object O, Expr *Mod) {
-    UsageInfo &U = UsageMap[O];
-    // Modifications conflict with other modifications and with uses.
-    checkUsage(O, U, Mod, UK_ModAsValue, true);
-    checkUsage(O, U, Mod, UK_Use, false);
-  }
-
-  void notePostMod(Object O, Expr *Use, UsageKind UK) {
-    UsageInfo &U = UsageMap[O];
-    checkUsage(O, U, Use, UK_ModAsSideEffect, true);
-    addUsage(U, O, Use, UK);
-  }
-
-public:
-  SequenceChecker(Sema &S, Expr *E, SmallVectorImpl<Expr *> &WorkList)
-      : Base(S.Context), SemaRef(S), Region(Tree.root()), WorkList(WorkList) {
-    Visit(E);
-  }
-
-  void VisitStmt(Stmt *S) {
-    // Skip all statements which aren't expressions for now.
-  }
-
-  void VisitExpr(Expr *E) {
-    // By default, just recurse to evaluated subexpressions.
-    Base::VisitStmt(E);
-  }
-
-  void VisitCastExpr(CastExpr *E) {
-    Object O = Object();
-    if (E->getCastKind() == CK_LValueToRValue)
-      O = getObject(E->getSubExpr(), false);
-
-    if (O)
-      notePreUse(O, E);
-    VisitExpr(E);
-    if (O)
-      notePostUse(O, E);
-  }
-
-  void VisitSequencedExpressions(Expr *SequencedBefore, Expr *SequencedAfter) {
-    SequenceTree::Seq BeforeRegion = Tree.allocate(Region);
-    SequenceTree::Seq AfterRegion = Tree.allocate(Region);
-    SequenceTree::Seq OldRegion = Region;
-
-    {
-      SequencedSubexpression SeqBefore(*this);
-      Region = BeforeRegion;
-      Visit(SequencedBefore);
-    }
-
-    Region = AfterRegion;
-    Visit(SequencedAfter);
-
-    Region = OldRegion;
-
-    Tree.merge(BeforeRegion);
-    Tree.merge(AfterRegion);
-  }
-
-  void VisitArraySubscriptExpr(ArraySubscriptExpr *ASE) {
-    // C++17 [expr.sub]p1:
-    //   The expression E1[E2] is identical (by definition) to *((E1)+(E2)). The
-    //   expression E1 is sequenced before the expression E2.
-    if (SemaRef.getLangOpts().CPlusPlus17)
-      VisitSequencedExpressions(ASE->getLHS(), ASE->getRHS());
-    else
-      Base::VisitStmt(ASE);
-  }
-
-  void VisitBinComma(BinaryOperator *BO) {
-    // C++11 [expr.comma]p1:
-    //   Every value computation and side effect associated with the left
-    //   expression is sequenced before every value computation and side
-    //   effect associated with the right expression.
-    VisitSequencedExpressions(BO->getLHS(), BO->getRHS());
-  }
-
-  void VisitBinAssign(BinaryOperator *BO) {
-    // The modification is sequenced after the value computation of the LHS
-    // and RHS, so check it before inspecting the operands and update the
-    // map afterwards.
-    Object O = getObject(BO->getLHS(), true);
-    if (!O)
-      return VisitExpr(BO);
-
-    notePreMod(O, BO);
-
-    // C++11 [expr.ass]p7:
-    //   E1 op= E2 is equivalent to E1 = E1 op E2, except that E1 is evaluated
-    //   only once.
-    //
-    // Therefore, for a compound assignment operator, O is considered used
-    // everywhere except within the evaluation of E1 itself.
-    if (isa<CompoundAssignOperator>(BO))
-      notePreUse(O, BO);
-
-    Visit(BO->getLHS());
-
-    if (isa<CompoundAssignOperator>(BO))
-      notePostUse(O, BO);
-
-    Visit(BO->getRHS());
-
-    // C++11 [expr.ass]p1:
-    //   the assignment is sequenced [...] before the value computation of the
-    //   assignment expression.
-    // C11 6.5.16/3 has no such rule.
-    notePostMod(O, BO, SemaRef.getLangOpts().CPlusPlus ? UK_ModAsValue
-                                                       : UK_ModAsSideEffect);
-  }
-
-  void VisitCompoundAssignOperator(CompoundAssignOperator *CAO) {
-    VisitBinAssign(CAO);
-  }
-
-  void VisitUnaryPreInc(UnaryOperator *UO) { VisitUnaryPreIncDec(UO); }
-  void VisitUnaryPreDec(UnaryOperator *UO) { VisitUnaryPreIncDec(UO); }
-  void VisitUnaryPreIncDec(UnaryOperator *UO) {
-    Object O = getObject(UO->getSubExpr(), true);
-    if (!O)
-      return VisitExpr(UO);
-
-    notePreMod(O, UO);
-    Visit(UO->getSubExpr());
-    // C++11 [expr.pre.incr]p1:
-    //   the expression ++x is equivalent to x+=1
-    notePostMod(O, UO, SemaRef.getLangOpts().CPlusPlus ? UK_ModAsValue
-                                                       : UK_ModAsSideEffect);
-  }
-
-  void VisitUnaryPostInc(UnaryOperator *UO) { VisitUnaryPostIncDec(UO); }
-  void VisitUnaryPostDec(UnaryOperator *UO) { VisitUnaryPostIncDec(UO); }
-  void VisitUnaryPostIncDec(UnaryOperator *UO) {
-    Object O = getObject(UO->getSubExpr(), true);
-    if (!O)
-      return VisitExpr(UO);
-
-    notePreMod(O, UO);
-    Visit(UO->getSubExpr());
-    notePostMod(O, UO, UK_ModAsSideEffect);
-  }
-
-  /// Don't visit the RHS of '&&' or '||' if it might not be evaluated.
-  void VisitBinLOr(BinaryOperator *BO) {
-    // The side-effects of the LHS of an '&&' are sequenced before the
-    // value computation of the RHS, and hence before the value computation
-    // of the '&&' itself, unless the LHS evaluates to zero. We treat them
-    // as if they were unconditionally sequenced.
-    EvaluationTracker Eval(*this);
-    {
-      SequencedSubexpression Sequenced(*this);
-      Visit(BO->getLHS());
-    }
-
-    bool Result;
-    if (Eval.evaluate(BO->getLHS(), Result)) {
-      if (!Result)
-        Visit(BO->getRHS());
-    } else {
-      // Check for unsequenced operations in the RHS, treating it as an
-      // entirely separate evaluation.
-      //
-      // FIXME: If there are operations in the RHS which are unsequenced
-      // with respect to operations outside the RHS, and those operations
-      // are unconditionally evaluated, diagnose them.
-      WorkList.push_back(BO->getRHS());
-    }
-  }
-  void VisitBinLAnd(BinaryOperator *BO) {
-    EvaluationTracker Eval(*this);
-    {
-      SequencedSubexpression Sequenced(*this);
-      Visit(BO->getLHS());
-    }
-
-    bool Result;
-    if (Eval.evaluate(BO->getLHS(), Result)) {
-      if (Result)
-        Visit(BO->getRHS());
-    } else {
-      WorkList.push_back(BO->getRHS());
-    }
-  }
-
-  // Only visit the condition, unless we can be sure which subexpression will
-  // be chosen.
-  void VisitAbstractConditionalOperator(AbstractConditionalOperator *CO) {
-    EvaluationTracker Eval(*this);
-    {
-      SequencedSubexpression Sequenced(*this);
-      Visit(CO->getCond());
-    }
-
-    bool Result;
-    if (Eval.evaluate(CO->getCond(), Result))
-      Visit(Result ? CO->getTrueExpr() : CO->getFalseExpr());
-    else {
-      WorkList.push_back(CO->getTrueExpr());
-      WorkList.push_back(CO->getFalseExpr());
-    }
-  }
-
-  void VisitCallExpr(CallExpr *CE) {
-    // C++11 [intro.execution]p15:
-    //   When calling a function [...], every value computation and side effect
-    //   associated with any argument expression, or with the postfix expression
-    //   designating the called function, is sequenced before execution of every
-    //   expression or statement in the body of the function [and thus before
-    //   the value computation of its result].
-    SequencedSubexpression Sequenced(*this);
-    Base::VisitCallExpr(CE);
-
-    // FIXME: CXXNewExpr and CXXDeleteExpr implicitly call functions.
-  }
-
-  void VisitCXXConstructExpr(CXXConstructExpr *CCE) {
-    // This is a call, so all subexpressions are sequenced before the result.
-    SequencedSubexpression Sequenced(*this);
-
-    if (!CCE->isListInitialization())
-      return VisitExpr(CCE);
-
-    // In C++11, list initializations are sequenced.
-    SmallVector<SequenceTree::Seq, 32> Elts;
-    SequenceTree::Seq Parent = Region;
-    for (CXXConstructExpr::arg_iterator I = CCE->arg_begin(),
-                                        E = CCE->arg_end();
-         I != E; ++I) {
-      Region = Tree.allocate(Parent);
-      Elts.push_back(Region);
-      Visit(*I);
-    }
-
-    // Forget that the initializers are sequenced.
-    Region = Parent;
-    for (unsigned I = 0; I < Elts.size(); ++I)
-      Tree.merge(Elts[I]);
-  }
-
-  void VisitInitListExpr(InitListExpr *ILE) {
-    if (!SemaRef.getLangOpts().CPlusPlus11)
-      return VisitExpr(ILE);
-
-    // In C++11, list initializations are sequenced.
-    SmallVector<SequenceTree::Seq, 32> Elts;
-    SequenceTree::Seq Parent = Region;
-    for (unsigned I = 0; I < ILE->getNumInits(); ++I) {
-      Expr *E = ILE->getInit(I);
-      if (!E) continue;
-      Region = Tree.allocate(Parent);
-      Elts.push_back(Region);
-      Visit(E);
-    }
-
-    // Forget that the initializers are sequenced.
-    Region = Parent;
-    for (unsigned I = 0; I < Elts.size(); ++I)
-      Tree.merge(Elts[I]);
-  }
-};
-
-} // namespace
-
-void Sema::CheckUnsequencedOperations(Expr *E) {
-  SmallVector<Expr *, 8> WorkList;
-  WorkList.push_back(E);
-  while (!WorkList.empty()) {
-    Expr *Item = WorkList.pop_back_val();
-    SequenceChecker(*this, Item, WorkList);
-  }
-}
-
-void Sema::CheckCompletedExpr(Expr *E, SourceLocation CheckLoc,
-                              bool IsConstexpr) {
-  llvm::SaveAndRestore<bool> ConstantContext(
-      isConstantEvaluatedOverride, IsConstexpr || isa<ConstantExpr>(E));
-  CheckImplicitConversions(E, CheckLoc);
-  if (!E->isInstantiationDependent())
-    CheckUnsequencedOperations(E);
-  if (!IsConstexpr && !E->isValueDependent())
-    CheckForIntOverflow(E);
-  DiagnoseMisalignedMembers();
-}
-
-void Sema::CheckBitFieldInitialization(SourceLocation InitLoc,
-                                       FieldDecl *BitField,
-                                       Expr *Init) {
-  (void) AnalyzeBitFieldAssignment(*this, BitField, Init, InitLoc);
-}
-
-static void diagnoseArrayStarInParamType(Sema &S, QualType PType,
-                                         SourceLocation Loc) {
-  if (!PType->isVariablyModifiedType())
-    return;
-  if (const auto *PointerTy = dyn_cast<PointerType>(PType)) {
-    diagnoseArrayStarInParamType(S, PointerTy->getPointeeType(), Loc);
-    return;
-  }
-  if (const auto *ReferenceTy = dyn_cast<ReferenceType>(PType)) {
-    diagnoseArrayStarInParamType(S, ReferenceTy->getPointeeType(), Loc);
-    return;
-  }
-  if (const auto *ParenTy = dyn_cast<ParenType>(PType)) {
-    diagnoseArrayStarInParamType(S, ParenTy->getInnerType(), Loc);
-    return;
-  }
-
-  const ArrayType *AT = S.Context.getAsArrayType(PType);
-  if (!AT)
-    return;
-
-  if (AT->getSizeModifier() != ArrayType::Star) {
-    diagnoseArrayStarInParamType(S, AT->getElementType(), Loc);
-    return;
-  }
-
-  S.Diag(Loc, diag::err_array_star_in_function_definition);
-}
-
-/// CheckParmsForFunctionDef - Check that the parameters of the given
-/// function are appropriate for the definition of a function. This
-/// takes care of any checks that cannot be performed on the
-/// declaration itself, e.g., that the types of each of the function
-/// parameters are complete.
-bool Sema::CheckParmsForFunctionDef(ArrayRef<ParmVarDecl *> Parameters,
-                                    bool CheckParameterNames) {
-  bool HasInvalidParm = false;
-  for (ParmVarDecl *Param : Parameters) {
-    // C99 6.7.5.3p4: the parameters in a parameter type list in a
-    // function declarator that is part of a function definition of
-    // that function shall not have incomplete type.
-    //
-    // This is also C++ [dcl.fct]p6.
-    if (!Param->isInvalidDecl() &&
-        RequireCompleteType(Param->getLocation(), Param->getType(),
-                            diag::err_typecheck_decl_incomplete_type)) {
-      Param->setInvalidDecl();
-      HasInvalidParm = true;
-    }
-
-    // C99 6.9.1p5: If the declarator includes a parameter type list, the
-    // declaration of each parameter shall include an identifier.
-    if (CheckParameterNames &&
-        Param->getIdentifier() == nullptr &&
-        !Param->isImplicit() &&
-        !getLangOpts().CPlusPlus)
-      Diag(Param->getLocation(), diag::err_parameter_name_omitted);
-
-    // C99 6.7.5.3p12:
-    //   If the function declarator is not part of a definition of that
-    //   function, parameters may have incomplete type and may use the [*]
-    //   notation in their sequences of declarator specifiers to specify
-    //   variable length array types.
-    QualType PType = Param->getOriginalType();
-    // FIXME: This diagnostic should point the '[*]' if source-location
-    // information is added for it.
-    diagnoseArrayStarInParamType(*this, PType, Param->getLocation());
-
-    // If the parameter is a c++ class type and it has to be destructed in the
-    // callee function, declare the destructor so that it can be called by the
-    // callee function. Do not perform any direct access check on the dtor here.
-    if (!Param->isInvalidDecl()) {
-      if (CXXRecordDecl *ClassDecl = Param->getType()->getAsCXXRecordDecl()) {
-        if (!ClassDecl->isInvalidDecl() &&
-            !ClassDecl->hasIrrelevantDestructor() &&
-            !ClassDecl->isDependentContext() &&
-            ClassDecl->isParamDestroyedInCallee()) {
-          CXXDestructorDecl *Destructor = LookupDestructor(ClassDecl);
-          MarkFunctionReferenced(Param->getLocation(), Destructor);
-          DiagnoseUseOfDecl(Destructor, Param->getLocation());
-        }
-      }
-    }
-
-    // Parameters with the pass_object_size attribute only need to be marked
-    // constant at function definitions. Because we lack information about
-    // whether we're on a declaration or definition when we're instantiating the
-    // attribute, we need to check for constness here.
-    if (const auto *Attr = Param->getAttr<PassObjectSizeAttr>())
-      if (!Param->getType().isConstQualified())
-        Diag(Param->getLocation(), diag::err_attribute_pointers_only)
-            << Attr->getSpelling() << 1;
-
-    // Check for parameter names shadowing fields from the class.
-    if (LangOpts.CPlusPlus && !Param->isInvalidDecl()) {
-      // The owning context for the parameter should be the function, but we
-      // want to see if this function's declaration context is a record.
-      DeclContext *DC = Param->getDeclContext();
-      if (DC && DC->isFunctionOrMethod()) {
-        if (auto *RD = dyn_cast<CXXRecordDecl>(DC->getParent()))
-          CheckShadowInheritedFields(Param->getLocation(), Param->getDeclName(),
-                                     RD, /*DeclIsField*/ false);
-      }
-    }
-  }
-
-  return HasInvalidParm;
-}
-
-/// A helper function to get the alignment of a Decl referred to by DeclRefExpr
-/// or MemberExpr.
-static CharUnits getDeclAlign(Expr *E, CharUnits TypeAlign,
-                              ASTContext &Context) {
-  if (const auto *DRE = dyn_cast<DeclRefExpr>(E))
-    return Context.getDeclAlign(DRE->getDecl());
-
-  if (const auto *ME = dyn_cast<MemberExpr>(E))
-    return Context.getDeclAlign(ME->getMemberDecl());
-
-  return TypeAlign;
-}
-
-/// CheckCastAlign - Implements -Wcast-align, which warns when a
-/// pointer cast increases the alignment requirements.
-void Sema::CheckCastAlign(Expr *Op, QualType T, SourceRange TRange) {
-  // This is actually a lot of work to potentially be doing on every
-  // cast; don't do it if we're ignoring -Wcast_align (as is the default).
-  if (getDiagnostics().isIgnored(diag::warn_cast_align, TRange.getBegin()))
-    return;
-
-  // Ignore dependent types.
-  if (T->isDependentType() || Op->getType()->isDependentType())
-    return;
-
-  // Require that the destination be a pointer type.
-  const PointerType *DestPtr = T->getAs<PointerType>();
-  if (!DestPtr) return;
-
-  // If the destination has alignment 1, we're done.
-  QualType DestPointee = DestPtr->getPointeeType();
-  if (DestPointee->isIncompleteType()) return;
-  CharUnits DestAlign = Context.getTypeAlignInChars(DestPointee);
-  if (DestAlign.isOne()) return;
-
-  // Require that the source be a pointer type.
-  const PointerType *SrcPtr = Op->getType()->getAs<PointerType>();
-  if (!SrcPtr) return;
-  QualType SrcPointee = SrcPtr->getPointeeType();
-
-  // Whitelist casts from cv void*.  We already implicitly
-  // whitelisted casts to cv void*, since they have alignment 1.
-  // Also whitelist casts involving incomplete types, which implicitly
-  // includes 'void'.
-  if (SrcPointee->isIncompleteType()) return;
-
-  CharUnits SrcAlign = Context.getTypeAlignInChars(SrcPointee);
-
-  if (auto *CE = dyn_cast<CastExpr>(Op)) {
-    if (CE->getCastKind() == CK_ArrayToPointerDecay)
-      SrcAlign = getDeclAlign(CE->getSubExpr(), SrcAlign, Context);
-  } else if (auto *UO = dyn_cast<UnaryOperator>(Op)) {
-    if (UO->getOpcode() == UO_AddrOf)
-      SrcAlign = getDeclAlign(UO->getSubExpr(), SrcAlign, Context);
-  }
-
-  if (SrcAlign >= DestAlign) return;
-
-  Diag(TRange.getBegin(), diag::warn_cast_align)
-    << Op->getType() << T
-    << static_cast<unsigned>(SrcAlign.getQuantity())
-    << static_cast<unsigned>(DestAlign.getQuantity())
-    << TRange << Op->getSourceRange();
-}
-
-/// Check whether this array fits the idiom of a size-one tail padded
-/// array member of a struct.
-///
-/// We avoid emitting out-of-bounds access warnings for such arrays as they are
-/// commonly used to emulate flexible arrays in C89 code.
-static bool IsTailPaddedMemberArray(Sema &S, const llvm::APInt &Size,
-                                    const NamedDecl *ND) {
-  if (Size != 1 || !ND) return false;
-
-  const FieldDecl *FD = dyn_cast<FieldDecl>(ND);
-  if (!FD) return false;
-
-  // Don't consider sizes resulting from macro expansions or template argument
-  // substitution to form C89 tail-padded arrays.
-
-  TypeSourceInfo *TInfo = FD->getTypeSourceInfo();
-  while (TInfo) {
-    TypeLoc TL = TInfo->getTypeLoc();
-    // Look through typedefs.
-    if (TypedefTypeLoc TTL = TL.getAs<TypedefTypeLoc>()) {
-      const TypedefNameDecl *TDL = TTL.getTypedefNameDecl();
-      TInfo = TDL->getTypeSourceInfo();
-      continue;
-    }
-    if (ConstantArrayTypeLoc CTL = TL.getAs<ConstantArrayTypeLoc>()) {
-      const Expr *SizeExpr = dyn_cast<IntegerLiteral>(CTL.getSizeExpr());
-      if (!SizeExpr || SizeExpr->getExprLoc().isMacroID())
-        return false;
-    }
-    break;
-  }
-
-  const RecordDecl *RD = dyn_cast<RecordDecl>(FD->getDeclContext());
-  if (!RD) return false;
-  if (RD->isUnion()) return false;
-  if (const CXXRecordDecl *CRD = dyn_cast<CXXRecordDecl>(RD)) {
-    if (!CRD->isStandardLayout()) return false;
-  }
-
-  // See if this is the last field decl in the record.
-  const Decl *D = FD;
-  while ((D = D->getNextDeclInContext()))
-    if (isa<FieldDecl>(D))
-      return false;
-  return true;
-}
-
-void Sema::CheckArrayAccess(const Expr *BaseExpr, const Expr *IndexExpr,
-                            const ArraySubscriptExpr *ASE,
-                            bool AllowOnePastEnd, bool IndexNegated) {
-  // Already diagnosed by the constant evaluator.
-  if (isConstantEvaluated())
-    return;
-
-  IndexExpr = IndexExpr->IgnoreParenImpCasts();
-  if (IndexExpr->isValueDependent())
-    return;
-
-  const Type *EffectiveType =
-      BaseExpr->getType()->getPointeeOrArrayElementType();
-  BaseExpr = BaseExpr->IgnoreParenCasts();
-  const ConstantArrayType *ArrayTy =
-      Context.getAsConstantArrayType(BaseExpr->getType());
-
-  if (!ArrayTy)
-    return;
-
-  const Type *BaseType = ArrayTy->getElementType().getTypePtr();
-  if (EffectiveType->isDependentType() || BaseType->isDependentType())
-    return;
-
-  Expr::EvalResult Result;
-  if (!IndexExpr->EvaluateAsInt(Result, Context, Expr::SE_AllowSideEffects))
-    return;
-
-  llvm::APSInt index = Result.Val.getInt();
-  if (IndexNegated)
-    index = -index;
-
-  const NamedDecl *ND = nullptr;
-  if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(BaseExpr))
-    ND = DRE->getDecl();
-  if (const MemberExpr *ME = dyn_cast<MemberExpr>(BaseExpr))
-    ND = ME->getMemberDecl();
-
-  if (index.isUnsigned() || !index.isNegative()) {
-    // It is possible that the type of the base expression after
-    // IgnoreParenCasts is incomplete, even though the type of the base
-    // expression before IgnoreParenCasts is complete (see PR39746 for an
-    // example). In this case we have no information about whether the array
-    // access exceeds the array bounds. However we can still diagnose an array
-    // access which precedes the array bounds.
-    if (BaseType->isIncompleteType())
-      return;
-
-    llvm::APInt size = ArrayTy->getSize();
-    if (!size.isStrictlyPositive())
-      return;
-
-    if (BaseType != EffectiveType) {
-      // Make sure we're comparing apples to apples when comparing index to size
-      uint64_t ptrarith_typesize = Context.getTypeSize(EffectiveType);
-      uint64_t array_typesize = Context.getTypeSize(BaseType);
-      // Handle ptrarith_typesize being zero, such as when casting to void*
-      if (!ptrarith_typesize) ptrarith_typesize = 1;
-      if (ptrarith_typesize != array_typesize) {
-        // There's a cast to a different size type involved
-        uint64_t ratio = array_typesize / ptrarith_typesize;
-        // TODO: Be smarter about handling cases where array_typesize is not a
-        // multiple of ptrarith_typesize
-        if (ptrarith_typesize * ratio == array_typesize)
-          size *= llvm::APInt(size.getBitWidth(), ratio);
-      }
-    }
-
-    if (size.getBitWidth() > index.getBitWidth())
-      index = index.zext(size.getBitWidth());
-    else if (size.getBitWidth() < index.getBitWidth())
-      size = size.zext(index.getBitWidth());
-
-    // For array subscripting the index must be less than size, but for pointer
-    // arithmetic also allow the index (offset) to be equal to size since
-    // computing the next address after the end of the array is legal and
-    // commonly done e.g. in C++ iterators and range-based for loops.
-    if (AllowOnePastEnd ? index.ule(size) : index.ult(size))
-      return;
-
-    // Also don't warn for arrays of size 1 which are members of some
-    // structure. These are often used to approximate flexible arrays in C89
-    // code.
-    if (IsTailPaddedMemberArray(*this, size, ND))
-      return;
-
-    // Suppress the warning if the subscript expression (as identified by the
-    // ']' location) and the index expression are both from macro expansions
-    // within a system header.
-    if (ASE) {
-      SourceLocation RBracketLoc = SourceMgr.getSpellingLoc(
-          ASE->getRBracketLoc());
-      if (SourceMgr.isInSystemHeader(RBracketLoc)) {
-        SourceLocation IndexLoc =
-            SourceMgr.getSpellingLoc(IndexExpr->getBeginLoc());
-        if (SourceMgr.isWrittenInSameFile(RBracketLoc, IndexLoc))
-          return;
-      }
-    }
-
-    unsigned DiagID = diag::warn_ptr_arith_exceeds_bounds;
-    if (ASE)
-      DiagID = diag::warn_array_index_exceeds_bounds;
-
-    DiagRuntimeBehavior(BaseExpr->getBeginLoc(), BaseExpr,
-                        PDiag(DiagID) << index.toString(10, true)
-                                      << size.toString(10, true)
-                                      << (unsigned)size.getLimitedValue(~0U)
-                                      << IndexExpr->getSourceRange());
-  } else {
-    unsigned DiagID = diag::warn_array_index_precedes_bounds;
-    if (!ASE) {
-      DiagID = diag::warn_ptr_arith_precedes_bounds;
-      if (index.isNegative()) index = -index;
-    }
-
-    DiagRuntimeBehavior(BaseExpr->getBeginLoc(), BaseExpr,
-                        PDiag(DiagID) << index.toString(10, true)
-                                      << IndexExpr->getSourceRange());
-  }
-
-  if (!ND) {
-    // Try harder to find a NamedDecl to point at in the note.
-    while (const ArraySubscriptExpr *ASE =
-           dyn_cast<ArraySubscriptExpr>(BaseExpr))
-      BaseExpr = ASE->getBase()->IgnoreParenCasts();
-    if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(BaseExpr))
-      ND = DRE->getDecl();
-    if (const MemberExpr *ME = dyn_cast<MemberExpr>(BaseExpr))
-      ND = ME->getMemberDecl();
-  }
-
-  if (ND)
-    DiagRuntimeBehavior(ND->getBeginLoc(), BaseExpr,
-                        PDiag(diag::note_array_index_out_of_bounds)
-                            << ND->getDeclName());
-}
-
-void Sema::CheckArrayAccess(const Expr *expr) {
-  int AllowOnePastEnd = 0;
-  while (expr) {
-    expr = expr->IgnoreParenImpCasts();
-    switch (expr->getStmtClass()) {
-      case Stmt::ArraySubscriptExprClass: {
-        const ArraySubscriptExpr *ASE = cast<ArraySubscriptExpr>(expr);
-        CheckArrayAccess(ASE->getBase(), ASE->getIdx(), ASE,
-                         AllowOnePastEnd > 0);
-        expr = ASE->getBase();
-        break;
-      }
-      case Stmt::MemberExprClass: {
-        expr = cast<MemberExpr>(expr)->getBase();
-        break;
-      }
-      case Stmt::OMPArraySectionExprClass: {
-        const OMPArraySectionExpr *ASE = cast<OMPArraySectionExpr>(expr);
-        if (ASE->getLowerBound())
-          CheckArrayAccess(ASE->getBase(), ASE->getLowerBound(),
-                           /*ASE=*/nullptr, AllowOnePastEnd > 0);
-        return;
-      }
-      case Stmt::UnaryOperatorClass: {
-        // Only unwrap the * and & unary operators
-        const UnaryOperator *UO = cast<UnaryOperator>(expr);
-        expr = UO->getSubExpr();
-        switch (UO->getOpcode()) {
-          case UO_AddrOf:
-            AllowOnePastEnd++;
-            break;
-          case UO_Deref:
-            AllowOnePastEnd--;
-            break;
-          default:
-            return;
-        }
-        break;
-      }
-      case Stmt::ConditionalOperatorClass: {
-        const ConditionalOperator *cond = cast<ConditionalOperator>(expr);
-        if (const Expr *lhs = cond->getLHS())
-          CheckArrayAccess(lhs);
-        if (const Expr *rhs = cond->getRHS())
-          CheckArrayAccess(rhs);
-        return;
-      }
-      case Stmt::CXXOperatorCallExprClass: {
-        const auto *OCE = cast<CXXOperatorCallExpr>(expr);
-        for (const auto *Arg : OCE->arguments())
-          CheckArrayAccess(Arg);
-        return;
-      }
-      default:
-        return;
-    }
-  }
-}
-
-//===--- CHECK: Objective-C retain cycles ----------------------------------//
-
-namespace {
-
-struct RetainCycleOwner {
-  VarDecl *Variable = nullptr;
-  SourceRange Range;
-  SourceLocation Loc;
-  bool Indirect = false;
-
-  RetainCycleOwner() = default;
-
-  void setLocsFrom(Expr *e) {
-    Loc = e->getExprLoc();
-    Range = e->getSourceRange();
-  }
-};
-
-} // namespace
-
-/// Consider whether capturing the given variable can possibly lead to
-/// a retain cycle.
-static bool considerVariable(VarDecl *var, Expr *ref, RetainCycleOwner &owner) {
-  // In ARC, it's captured strongly iff the variable has __strong
-  // lifetime.  In MRR, it's captured strongly if the variable is
-  // __block and has an appropriate type.
-  if (var->getType().getObjCLifetime() != Qualifiers::OCL_Strong)
-    return false;
-
-  owner.Variable = var;
-  if (ref)
-    owner.setLocsFrom(ref);
-  return true;
-}
-
-static bool findRetainCycleOwner(Sema &S, Expr *e, RetainCycleOwner &owner) {
-  while (true) {
-    e = e->IgnoreParens();
-    if (CastExpr *cast = dyn_cast<CastExpr>(e)) {
-      switch (cast->getCastKind()) {
-      case CK_BitCast:
-      case CK_LValueBitCast:
-      case CK_LValueToRValue:
-      case CK_ARCReclaimReturnedObject:
-        e = cast->getSubExpr();
-        continue;
-
-      default:
-        return false;
-      }
-    }
-
-    if (ObjCIvarRefExpr *ref = dyn_cast<ObjCIvarRefExpr>(e)) {
-      ObjCIvarDecl *ivar = ref->getDecl();
-      if (ivar->getType().getObjCLifetime() != Qualifiers::OCL_Strong)
-        return false;
-
-      // Try to find a retain cycle in the base.
-      if (!findRetainCycleOwner(S, ref->getBase(), owner))
-        return false;
-
-      if (ref->isFreeIvar()) owner.setLocsFrom(ref);
-      owner.Indirect = true;
-      return true;
-    }
-
-    if (DeclRefExpr *ref = dyn_cast<DeclRefExpr>(e)) {
-      VarDecl *var = dyn_cast<VarDecl>(ref->getDecl());
-      if (!var) return false;
-      return considerVariable(var, ref, owner);
-    }
-
-    if (MemberExpr *member = dyn_cast<MemberExpr>(e)) {
-      if (member->isArrow()) return false;
-
-      // Don't count this as an indirect ownership.
-      e = member->getBase();
-      continue;
-    }
-
-    if (PseudoObjectExpr *pseudo = dyn_cast<PseudoObjectExpr>(e)) {
-      // Only pay attention to pseudo-objects on property references.
-      ObjCPropertyRefExpr *pre
-        = dyn_cast<ObjCPropertyRefExpr>(pseudo->getSyntacticForm()
-                                              ->IgnoreParens());
-      if (!pre) return false;
-      if (pre->isImplicitProperty()) return false;
-      ObjCPropertyDecl *property = pre->getExplicitProperty();
-      if (!property->isRetaining() &&
-          !(property->getPropertyIvarDecl() &&
-            property->getPropertyIvarDecl()->getType()
-              .getObjCLifetime() == Qualifiers::OCL_Strong))
-          return false;
-
-      owner.Indirect = true;
-      if (pre->isSuperReceiver()) {
-        owner.Variable = S.getCurMethodDecl()->getSelfDecl();
-        if (!owner.Variable)
-          return false;
-        owner.Loc = pre->getLocation();
-        owner.Range = pre->getSourceRange();
-        return true;
-      }
-      e = const_cast<Expr*>(cast<OpaqueValueExpr>(pre->getBase())
-                              ->getSourceExpr());
-      continue;
-    }
-
-    // Array ivars?
-
-    return false;
-  }
-}
-
-namespace {
-
-  struct FindCaptureVisitor : EvaluatedExprVisitor<FindCaptureVisitor> {
-    ASTContext &Context;
-    VarDecl *Variable;
-    Expr *Capturer = nullptr;
-    bool VarWillBeReased = false;
-
-    FindCaptureVisitor(ASTContext &Context, VarDecl *variable)
-        : EvaluatedExprVisitor<FindCaptureVisitor>(Context),
-          Context(Context), Variable(variable) {}
-
-    void VisitDeclRefExpr(DeclRefExpr *ref) {
-      if (ref->getDecl() == Variable && !Capturer)
-        Capturer = ref;
-    }
-
-    void VisitObjCIvarRefExpr(ObjCIvarRefExpr *ref) {
-      if (Capturer) return;
-      Visit(ref->getBase());
-      if (Capturer && ref->isFreeIvar())
-        Capturer = ref;
-    }
-
-    void VisitBlockExpr(BlockExpr *block) {
-      // Look inside nested blocks
-      if (block->getBlockDecl()->capturesVariable(Variable))
-        Visit(block->getBlockDecl()->getBody());
-    }
-
-    void VisitOpaqueValueExpr(OpaqueValueExpr *OVE) {
-      if (Capturer) return;
-      if (OVE->getSourceExpr())
-        Visit(OVE->getSourceExpr());
-    }
-
-    void VisitBinaryOperator(BinaryOperator *BinOp) {
-      if (!Variable || VarWillBeReased || BinOp->getOpcode() != BO_Assign)
-        return;
-      Expr *LHS = BinOp->getLHS();
-      if (const DeclRefExpr *DRE = dyn_cast_or_null<DeclRefExpr>(LHS)) {
-        if (DRE->getDecl() != Variable)
-          return;
-        if (Expr *RHS = BinOp->getRHS()) {
-          RHS = RHS->IgnoreParenCasts();
-          llvm::APSInt Value;
-          VarWillBeReased =
-            (RHS && RHS->isIntegerConstantExpr(Value, Context) && Value == 0);
-        }
-      }
-    }
-  };
-
-} // namespace
-
-/// Check whether the given argument is a block which captures a
-/// variable.
-static Expr *findCapturingExpr(Sema &S, Expr *e, RetainCycleOwner &owner) {
-  assert(owner.Variable && owner.Loc.isValid());
-
-  e = e->IgnoreParenCasts();
-
-  // Look through [^{...} copy] and Block_copy(^{...}).
-  if (ObjCMessageExpr *ME = dyn_cast<ObjCMessageExpr>(e)) {
-    Selector Cmd = ME->getSelector();
-    if (Cmd.isUnarySelector() && Cmd.getNameForSlot(0) == "copy") {
-      e = ME->getInstanceReceiver();
-      if (!e)
-        return nullptr;
-      e = e->IgnoreParenCasts();
-    }
-  } else if (CallExpr *CE = dyn_cast<CallExpr>(e)) {
-    if (CE->getNumArgs() == 1) {
-      FunctionDecl *Fn = dyn_cast_or_null<FunctionDecl>(CE->getCalleeDecl());
-      if (Fn) {
-        const IdentifierInfo *FnI = Fn->getIdentifier();
-        if (FnI && FnI->isStr("_Block_copy")) {
-          e = CE->getArg(0)->IgnoreParenCasts();
-        }
-      }
-    }
-  }
-
-  BlockExpr *block = dyn_cast<BlockExpr>(e);
-  if (!block || !block->getBlockDecl()->capturesVariable(owner.Variable))
-    return nullptr;
-
-  FindCaptureVisitor visitor(S.Context, owner.Variable);
-  visitor.Visit(block->getBlockDecl()->getBody());
-  return visitor.VarWillBeReased ? nullptr : visitor.Capturer;
-}
-
-static void diagnoseRetainCycle(Sema &S, Expr *capturer,
-                                RetainCycleOwner &owner) {
-  assert(capturer);
-  assert(owner.Variable && owner.Loc.isValid());
-
-  S.Diag(capturer->getExprLoc(), diag::warn_arc_retain_cycle)
-    << owner.Variable << capturer->getSourceRange();
-  S.Diag(owner.Loc, diag::note_arc_retain_cycle_owner)
-    << owner.Indirect << owner.Range;
-}
-
-/// Check for a keyword selector that starts with the word 'add' or
-/// 'set'.
-static bool isSetterLikeSelector(Selector sel) {
-  if (sel.isUnarySelector()) return false;
-
-  StringRef str = sel.getNameForSlot(0);
-  while (!str.empty() && str.front() == '_') str = str.substr(1);
-  if (str.startswith("set"))
-    str = str.substr(3);
-  else if (str.startswith("add")) {
-    // Specially whitelist 'addOperationWithBlock:'.
-    if (sel.getNumArgs() == 1 && str.startswith("addOperationWithBlock"))
-      return false;
-    str = str.substr(3);
-  }
-  else
-    return false;
-
-  if (str.empty()) return true;
-  return !isLowercase(str.front());
-}
-
-static Optional<int> GetNSMutableArrayArgumentIndex(Sema &S,
-                                                    ObjCMessageExpr *Message) {
-  bool IsMutableArray = S.NSAPIObj->isSubclassOfNSClass(
-                                                Message->getReceiverInterface(),
-                                                NSAPI::ClassId_NSMutableArray);
-  if (!IsMutableArray) {
-    return None;
-  }
-
-  Selector Sel = Message->getSelector();
-
-  Optional<NSAPI::NSArrayMethodKind> MKOpt =
-    S.NSAPIObj->getNSArrayMethodKind(Sel);
-  if (!MKOpt) {
-    return None;
-  }
-
-  NSAPI::NSArrayMethodKind MK = *MKOpt;
-
-  switch (MK) {
-    case NSAPI::NSMutableArr_addObject:
-    case NSAPI::NSMutableArr_insertObjectAtIndex:
-    case NSAPI::NSMutableArr_setObjectAtIndexedSubscript:
-      return 0;
-    case NSAPI::NSMutableArr_replaceObjectAtIndex:
-      return 1;
-
-    default:
-      return None;
-  }
-
-  return None;
-}
-
-static
-Optional<int> GetNSMutableDictionaryArgumentIndex(Sema &S,
-                                                  ObjCMessageExpr *Message) {
-  bool IsMutableDictionary = S.NSAPIObj->isSubclassOfNSClass(
-                                            Message->getReceiverInterface(),
-                                            NSAPI::ClassId_NSMutableDictionary);
-  if (!IsMutableDictionary) {
-    return None;
-  }
-
-  Selector Sel = Message->getSelector();
-
-  Optional<NSAPI::NSDictionaryMethodKind> MKOpt =
-    S.NSAPIObj->getNSDictionaryMethodKind(Sel);
-  if (!MKOpt) {
-    return None;
-  }
-
-  NSAPI::NSDictionaryMethodKind MK = *MKOpt;
-
-  switch (MK) {
-    case NSAPI::NSMutableDict_setObjectForKey:
-    case NSAPI::NSMutableDict_setValueForKey:
-    case NSAPI::NSMutableDict_setObjectForKeyedSubscript:
-      return 0;
-
-    default:
-      return None;
-  }
-
-  return None;
-}
-
-static Optional<int> GetNSSetArgumentIndex(Sema &S, ObjCMessageExpr *Message) {
-  bool IsMutableSet = S.NSAPIObj->isSubclassOfNSClass(
-                                                Message->getReceiverInterface(),
-                                                NSAPI::ClassId_NSMutableSet);
-
-  bool IsMutableOrderedSet = S.NSAPIObj->isSubclassOfNSClass(
-                                            Message->getReceiverInterface(),
-                                            NSAPI::ClassId_NSMutableOrderedSet);
-  if (!IsMutableSet && !IsMutableOrderedSet) {
-    return None;
-  }
-
-  Selector Sel = Message->getSelector();
-
-  Optional<NSAPI::NSSetMethodKind> MKOpt = S.NSAPIObj->getNSSetMethodKind(Sel);
-  if (!MKOpt) {
-    return None;
-  }
-
-  NSAPI::NSSetMethodKind MK = *MKOpt;
-
-  switch (MK) {
-    case NSAPI::NSMutableSet_addObject:
-    case NSAPI::NSOrderedSet_setObjectAtIndex:
-    case NSAPI::NSOrderedSet_setObjectAtIndexedSubscript:
-    case NSAPI::NSOrderedSet_insertObjectAtIndex:
-      return 0;
-    case NSAPI::NSOrderedSet_replaceObjectAtIndexWithObject:
-      return 1;
-  }
-
-  return None;
-}
-
-void Sema::CheckObjCCircularContainer(ObjCMessageExpr *Message) {
-  if (!Message->isInstanceMessage()) {
-    return;
-  }
-
-  Optional<int> ArgOpt;
-
-  if (!(ArgOpt = GetNSMutableArrayArgumentIndex(*this, Message)) &&
-      !(ArgOpt = GetNSMutableDictionaryArgumentIndex(*this, Message)) &&
-      !(ArgOpt = GetNSSetArgumentIndex(*this, Message))) {
-    return;
-  }
-
-  int ArgIndex = *ArgOpt;
-
-  Expr *Arg = Message->getArg(ArgIndex)->IgnoreImpCasts();
-  if (OpaqueValueExpr *OE = dyn_cast<OpaqueValueExpr>(Arg)) {
-    Arg = OE->getSourceExpr()->IgnoreImpCasts();
-  }
-
-  if (Message->getReceiverKind() == ObjCMessageExpr::SuperInstance) {
-    if (DeclRefExpr *ArgRE = dyn_cast<DeclRefExpr>(Arg)) {
-      if (ArgRE->isObjCSelfExpr()) {
-        Diag(Message->getSourceRange().getBegin(),
-             diag::warn_objc_circular_container)
-          << ArgRE->getDecl() << StringRef("'super'");
-      }
-    }
-  } else {
-    Expr *Receiver = Message->getInstanceReceiver()->IgnoreImpCasts();
-
-    if (OpaqueValueExpr *OE = dyn_cast<OpaqueValueExpr>(Receiver)) {
-      Receiver = OE->getSourceExpr()->IgnoreImpCasts();
-    }
-
-    if (DeclRefExpr *ReceiverRE = dyn_cast<DeclRefExpr>(Receiver)) {
-      if (DeclRefExpr *ArgRE = dyn_cast<DeclRefExpr>(Arg)) {
-        if (ReceiverRE->getDecl() == ArgRE->getDecl()) {
-          ValueDecl *Decl = ReceiverRE->getDecl();
-          Diag(Message->getSourceRange().getBegin(),
-               diag::warn_objc_circular_container)
-            << Decl << Decl;
-          if (!ArgRE->isObjCSelfExpr()) {
-            Diag(Decl->getLocation(),
-                 diag::note_objc_circular_container_declared_here)
-              << Decl;
-          }
-        }
-      }
-    } else if (ObjCIvarRefExpr *IvarRE = dyn_cast<ObjCIvarRefExpr>(Receiver)) {
-      if (ObjCIvarRefExpr *IvarArgRE = dyn_cast<ObjCIvarRefExpr>(Arg)) {
-        if (IvarRE->getDecl() == IvarArgRE->getDecl()) {
-          ObjCIvarDecl *Decl = IvarRE->getDecl();
-          Diag(Message->getSourceRange().getBegin(),
-               diag::warn_objc_circular_container)
-            << Decl << Decl;
-          Diag(Decl->getLocation(),
-               diag::note_objc_circular_container_declared_here)
-            << Decl;
-        }
-      }
-    }
-  }
-}
-
-/// Check a message send to see if it's likely to cause a retain cycle.
-void Sema::checkRetainCycles(ObjCMessageExpr *msg) {
-  // Only check instance methods whose selector looks like a setter.
-  if (!msg->isInstanceMessage() || !isSetterLikeSelector(msg->getSelector()))
-    return;
-
-  // Try to find a variable that the receiver is strongly owned by.
-  RetainCycleOwner owner;
-  if (msg->getReceiverKind() == ObjCMessageExpr::Instance) {
-    if (!findRetainCycleOwner(*this, msg->getInstanceReceiver(), owner))
-      return;
-  } else {
-    assert(msg->getReceiverKind() == ObjCMessageExpr::SuperInstance);
-    owner.Variable = getCurMethodDecl()->getSelfDecl();
-    owner.Loc = msg->getSuperLoc();
-    owner.Range = msg->getSuperLoc();
-  }
-
-  // Check whether the receiver is captured by any of the arguments.
-  const ObjCMethodDecl *MD = msg->getMethodDecl();
-  for (unsigned i = 0, e = msg->getNumArgs(); i != e; ++i) {
-    if (Expr *capturer = findCapturingExpr(*this, msg->getArg(i), owner)) {
-      // noescape blocks should not be retained by the method.
-      if (MD && MD->parameters()[i]->hasAttr<NoEscapeAttr>())
-        continue;
-      return diagnoseRetainCycle(*this, capturer, owner);
-    }
-  }
-}
-
-/// Check a property assign to see if it's likely to cause a retain cycle.
-void Sema::checkRetainCycles(Expr *receiver, Expr *argument) {
-  RetainCycleOwner owner;
-  if (!findRetainCycleOwner(*this, receiver, owner))
-    return;
-
-  if (Expr *capturer = findCapturingExpr(*this, argument, owner))
-    diagnoseRetainCycle(*this, capturer, owner);
-}
-
-void Sema::checkRetainCycles(VarDecl *Var, Expr *Init) {
-  RetainCycleOwner Owner;
-  if (!considerVariable(Var, /*DeclRefExpr=*/nullptr, Owner))
-    return;
-
-  // Because we don't have an expression for the variable, we have to set the
-  // location explicitly here.
-  Owner.Loc = Var->getLocation();
-  Owner.Range = Var->getSourceRange();
-
-  if (Expr *Capturer = findCapturingExpr(*this, Init, Owner))
-    diagnoseRetainCycle(*this, Capturer, Owner);
-}
-
-static bool checkUnsafeAssignLiteral(Sema &S, SourceLocation Loc,
-                                     Expr *RHS, bool isProperty) {
-  // Check if RHS is an Objective-C object literal, which also can get
-  // immediately zapped in a weak reference.  Note that we explicitly
-  // allow ObjCStringLiterals, since those are designed to never really die.
-  RHS = RHS->IgnoreParenImpCasts();
-
-  // This enum needs to match with the 'select' in
-  // warn_objc_arc_literal_assign (off-by-1).
-  Sema::ObjCLiteralKind Kind = S.CheckLiteralKind(RHS);
-  if (Kind == Sema::LK_String || Kind == Sema::LK_None)
-    return false;
-
-  S.Diag(Loc, diag::warn_arc_literal_assign)
-    << (unsigned) Kind
-    << (isProperty ? 0 : 1)
-    << RHS->getSourceRange();
-
-  return true;
-}
-
-static bool checkUnsafeAssignObject(Sema &S, SourceLocation Loc,
-                                    Qualifiers::ObjCLifetime LT,
-                                    Expr *RHS, bool isProperty) {
-  // Strip off any implicit cast added to get to the one ARC-specific.
-  while (ImplicitCastExpr *cast = dyn_cast<ImplicitCastExpr>(RHS)) {
-    if (cast->getCastKind() == CK_ARCConsumeObject) {
-      S.Diag(Loc, diag::warn_arc_retained_assign)
-        << (LT == Qualifiers::OCL_ExplicitNone)
-        << (isProperty ? 0 : 1)
-        << RHS->getSourceRange();
-      return true;
-    }
-    RHS = cast->getSubExpr();
-  }
-
-  if (LT == Qualifiers::OCL_Weak &&
-      checkUnsafeAssignLiteral(S, Loc, RHS, isProperty))
-    return true;
-
-  return false;
-}
-
-bool Sema::checkUnsafeAssigns(SourceLocation Loc,
-                              QualType LHS, Expr *RHS) {
-  Qualifiers::ObjCLifetime LT = LHS.getObjCLifetime();
-
-  if (LT != Qualifiers::OCL_Weak && LT != Qualifiers::OCL_ExplicitNone)
-    return false;
-
-  if (checkUnsafeAssignObject(*this, Loc, LT, RHS, false))
-    return true;
-
-  return false;
-}
-
-void Sema::checkUnsafeExprAssigns(SourceLocation Loc,
-                              Expr *LHS, Expr *RHS) {
-  QualType LHSType;
-  // PropertyRef on LHS type need be directly obtained from
-  // its declaration as it has a PseudoType.
-  ObjCPropertyRefExpr *PRE
-    = dyn_cast<ObjCPropertyRefExpr>(LHS->IgnoreParens());
-  if (PRE && !PRE->isImplicitProperty()) {
-    const ObjCPropertyDecl *PD = PRE->getExplicitProperty();
-    if (PD)
-      LHSType = PD->getType();
-  }
-
-  if (LHSType.isNull())
-    LHSType = LHS->getType();
-
-  Qualifiers::ObjCLifetime LT = LHSType.getObjCLifetime();
-
-  if (LT == Qualifiers::OCL_Weak) {
-    if (!Diags.isIgnored(diag::warn_arc_repeated_use_of_weak, Loc))
-      getCurFunction()->markSafeWeakUse(LHS);
-  }
-
-  if (checkUnsafeAssigns(Loc, LHSType, RHS))
-    return;
-
-  // FIXME. Check for other life times.
-  if (LT != Qualifiers::OCL_None)
-    return;
-
-  if (PRE) {
-    if (PRE->isImplicitProperty())
-      return;
-    const ObjCPropertyDecl *PD = PRE->getExplicitProperty();
-    if (!PD)
-      return;
-
-    unsigned Attributes = PD->getPropertyAttributes();
-    if (Attributes & ObjCPropertyDecl::OBJC_PR_assign) {
-      // when 'assign' attribute was not explicitly specified
-      // by user, ignore it and rely on property type itself
-      // for lifetime info.
-      unsigned AsWrittenAttr = PD->getPropertyAttributesAsWritten();
-      if (!(AsWrittenAttr & ObjCPropertyDecl::OBJC_PR_assign) &&
-          LHSType->isObjCRetainableType())
-        return;
-
-      while (ImplicitCastExpr *cast = dyn_cast<ImplicitCastExpr>(RHS)) {
-        if (cast->getCastKind() == CK_ARCConsumeObject) {
-          Diag(Loc, diag::warn_arc_retained_property_assign)
-          << RHS->getSourceRange();
-          return;
-        }
-        RHS = cast->getSubExpr();
-      }
-    }
-    else if (Attributes & ObjCPropertyDecl::OBJC_PR_weak) {
-      if (checkUnsafeAssignObject(*this, Loc, Qualifiers::OCL_Weak, RHS, true))
-        return;
-    }
-  }
-}
-
-//===--- CHECK: Empty statement body (-Wempty-body) ---------------------===//
-
-static bool ShouldDiagnoseEmptyStmtBody(const SourceManager &SourceMgr,
-                                        SourceLocation StmtLoc,
-                                        const NullStmt *Body) {
-  // Do not warn if the body is a macro that expands to nothing, e.g:
-  //
-  // #define CALL(x)
-  // if (condition)
-  //   CALL(0);
-  if (Body->hasLeadingEmptyMacro())
-    return false;
-
-  // Get line numbers of statement and body.
-  bool StmtLineInvalid;
-  unsigned StmtLine = SourceMgr.getPresumedLineNumber(StmtLoc,
-                                                      &StmtLineInvalid);
-  if (StmtLineInvalid)
-    return false;
-
-  bool BodyLineInvalid;
-  unsigned BodyLine = SourceMgr.getSpellingLineNumber(Body->getSemiLoc(),
-                                                      &BodyLineInvalid);
-  if (BodyLineInvalid)
-    return false;
-
-  // Warn if null statement and body are on the same line.
-  if (StmtLine != BodyLine)
-    return false;
-
-  return true;
-}
-
-void Sema::DiagnoseEmptyStmtBody(SourceLocation StmtLoc,
-                                 const Stmt *Body,
-                                 unsigned DiagID) {
-  // Since this is a syntactic check, don't emit diagnostic for template
-  // instantiations, this just adds noise.
-  if (CurrentInstantiationScope)
-    return;
-
-  // The body should be a null statement.
-  const NullStmt *NBody = dyn_cast<NullStmt>(Body);
-  if (!NBody)
-    return;
-
-  // Do the usual checks.
-  if (!ShouldDiagnoseEmptyStmtBody(SourceMgr, StmtLoc, NBody))
-    return;
-
-  Diag(NBody->getSemiLoc(), DiagID);
-  Diag(NBody->getSemiLoc(), diag::note_empty_body_on_separate_line);
-}
-
-void Sema::DiagnoseEmptyLoopBody(const Stmt *S,
-                                 const Stmt *PossibleBody) {
-  assert(!CurrentInstantiationScope); // Ensured by caller
-
-  SourceLocation StmtLoc;
-  const Stmt *Body;
-  unsigned DiagID;
-  if (const ForStmt *FS = dyn_cast<ForStmt>(S)) {
-    StmtLoc = FS->getRParenLoc();
-    Body = FS->getBody();
-    DiagID = diag::warn_empty_for_body;
-  } else if (const WhileStmt *WS = dyn_cast<WhileStmt>(S)) {
-    StmtLoc = WS->getCond()->getSourceRange().getEnd();
-    Body = WS->getBody();
-    DiagID = diag::warn_empty_while_body;
-  } else
-    return; // Neither `for' nor `while'.
-
-  // The body should be a null statement.
-  const NullStmt *NBody = dyn_cast<NullStmt>(Body);
-  if (!NBody)
-    return;
-
-  // Skip expensive checks if diagnostic is disabled.
-  if (Diags.isIgnored(DiagID, NBody->getSemiLoc()))
-    return;
-
-  // Do the usual checks.
-  if (!ShouldDiagnoseEmptyStmtBody(SourceMgr, StmtLoc, NBody))
-    return;
-
-  // `for(...);' and `while(...);' are popular idioms, so in order to keep
-  // noise level low, emit diagnostics only if for/while is followed by a
-  // CompoundStmt, e.g.:
-  //    for (int i = 0; i < n; i++);
-  //    {
-  //      a(i);
-  //    }
-  // or if for/while is followed by a statement with more indentation
-  // than for/while itself:
-  //    for (int i = 0; i < n; i++);
-  //      a(i);
-  bool ProbableTypo = isa<CompoundStmt>(PossibleBody);
-  if (!ProbableTypo) {
-    bool BodyColInvalid;
-    unsigned BodyCol = SourceMgr.getPresumedColumnNumber(
-        PossibleBody->getBeginLoc(), &BodyColInvalid);
-    if (BodyColInvalid)
-      return;
-
-    bool StmtColInvalid;
-    unsigned StmtCol =
-        SourceMgr.getPresumedColumnNumber(S->getBeginLoc(), &StmtColInvalid);
-    if (StmtColInvalid)
-      return;
-
-    if (BodyCol > StmtCol)
-      ProbableTypo = true;
-  }
-
-  if (ProbableTypo) {
-    Diag(NBody->getSemiLoc(), DiagID);
-    Diag(NBody->getSemiLoc(), diag::note_empty_body_on_separate_line);
-  }
-}
-
-//===--- CHECK: Warn on self move with std::move. -------------------------===//
-
-/// DiagnoseSelfMove - Emits a warning if a value is moved to itself.
-void Sema::DiagnoseSelfMove(const Expr *LHSExpr, const Expr *RHSExpr,
-                             SourceLocation OpLoc) {
-  if (Diags.isIgnored(diag::warn_sizeof_pointer_expr_memaccess, OpLoc))
-    return;
-
-  if (inTemplateInstantiation())
-    return;
-
-  // Strip parens and casts away.
-  LHSExpr = LHSExpr->IgnoreParenImpCasts();
-  RHSExpr = RHSExpr->IgnoreParenImpCasts();
-
-  // Check for a call expression
-  const CallExpr *CE = dyn_cast<CallExpr>(RHSExpr);
-  if (!CE || CE->getNumArgs() != 1)
-    return;
-
-  // Check for a call to std::move
-  if (!CE->isCallToStdMove())
-    return;
-
-  // Get argument from std::move
-  RHSExpr = CE->getArg(0);
-
-  const DeclRefExpr *LHSDeclRef = dyn_cast<DeclRefExpr>(LHSExpr);
-  const DeclRefExpr *RHSDeclRef = dyn_cast<DeclRefExpr>(RHSExpr);
-
-  // Two DeclRefExpr's, check that the decls are the same.
-  if (LHSDeclRef && RHSDeclRef) {
-    if (!LHSDeclRef->getDecl() || !RHSDeclRef->getDecl())
-      return;
-    if (LHSDeclRef->getDecl()->getCanonicalDecl() !=
-        RHSDeclRef->getDecl()->getCanonicalDecl())
-      return;
-
-    Diag(OpLoc, diag::warn_self_move) << LHSExpr->getType()
-                                        << LHSExpr->getSourceRange()
-                                        << RHSExpr->getSourceRange();
-    return;
-  }
-
-  // Member variables require a different approach to check for self moves.
-  // MemberExpr's are the same if every nested MemberExpr refers to the same
-  // Decl and that the base Expr's are DeclRefExpr's with the same Decl or
-  // the base Expr's are CXXThisExpr's.
-  const Expr *LHSBase = LHSExpr;
-  const Expr *RHSBase = RHSExpr;
-  const MemberExpr *LHSME = dyn_cast<MemberExpr>(LHSExpr);
-  const MemberExpr *RHSME = dyn_cast<MemberExpr>(RHSExpr);
-  if (!LHSME || !RHSME)
-    return;
-
-  while (LHSME && RHSME) {
-    if (LHSME->getMemberDecl()->getCanonicalDecl() !=
-        RHSME->getMemberDecl()->getCanonicalDecl())
-      return;
-
-    LHSBase = LHSME->getBase();
-    RHSBase = RHSME->getBase();
-    LHSME = dyn_cast<MemberExpr>(LHSBase);
-    RHSME = dyn_cast<MemberExpr>(RHSBase);
-  }
-
-  LHSDeclRef = dyn_cast<DeclRefExpr>(LHSBase);
-  RHSDeclRef = dyn_cast<DeclRefExpr>(RHSBase);
-  if (LHSDeclRef && RHSDeclRef) {
-    if (!LHSDeclRef->getDecl() || !RHSDeclRef->getDecl())
-      return;
-    if (LHSDeclRef->getDecl()->getCanonicalDecl() !=
-        RHSDeclRef->getDecl()->getCanonicalDecl())
-      return;
-
-    Diag(OpLoc, diag::warn_self_move) << LHSExpr->getType()
-                                        << LHSExpr->getSourceRange()
-                                        << RHSExpr->getSourceRange();
-    return;
-  }
-
-  if (isa<CXXThisExpr>(LHSBase) && isa<CXXThisExpr>(RHSBase))
-    Diag(OpLoc, diag::warn_self_move) << LHSExpr->getType()
-                                        << LHSExpr->getSourceRange()
-                                        << RHSExpr->getSourceRange();
-}
-
-//===--- Layout compatibility ----------------------------------------------//
-
-static bool isLayoutCompatible(ASTContext &C, QualType T1, QualType T2);
-
-/// Check if two enumeration types are layout-compatible.
-static bool isLayoutCompatible(ASTContext &C, EnumDecl *ED1, EnumDecl *ED2) {
-  // C++11 [dcl.enum] p8:
-  // Two enumeration types are layout-compatible if they have the same
-  // underlying type.
-  return ED1->isComplete() && ED2->isComplete() &&
-         C.hasSameType(ED1->getIntegerType(), ED2->getIntegerType());
-}
-
-/// Check if two fields are layout-compatible.
-static bool isLayoutCompatible(ASTContext &C, FieldDecl *Field1,
-                               FieldDecl *Field2) {
-  if (!isLayoutCompatible(C, Field1->getType(), Field2->getType()))
-    return false;
-
-  if (Field1->isBitField() != Field2->isBitField())
-    return false;
-
-  if (Field1->isBitField()) {
-    // Make sure that the bit-fields are the same length.
-    unsigned Bits1 = Field1->getBitWidthValue(C);
-    unsigned Bits2 = Field2->getBitWidthValue(C);
-
-    if (Bits1 != Bits2)
-      return false;
-  }
-
-  return true;
-}
-
-/// Check if two standard-layout structs are layout-compatible.
-/// (C++11 [class.mem] p17)
-static bool isLayoutCompatibleStruct(ASTContext &C, RecordDecl *RD1,
-                                     RecordDecl *RD2) {
-  // If both records are C++ classes, check that base classes match.
-  if (const CXXRecordDecl *D1CXX = dyn_cast<CXXRecordDecl>(RD1)) {
-    // If one of records is a CXXRecordDecl we are in C++ mode,
-    // thus the other one is a CXXRecordDecl, too.
-    const CXXRecordDecl *D2CXX = cast<CXXRecordDecl>(RD2);
-    // Check number of base classes.
-    if (D1CXX->getNumBases() != D2CXX->getNumBases())
-      return false;
-
-    // Check the base classes.
-    for (CXXRecordDecl::base_class_const_iterator
-               Base1 = D1CXX->bases_begin(),
-           BaseEnd1 = D1CXX->bases_end(),
-              Base2 = D2CXX->bases_begin();
-         Base1 != BaseEnd1;
-         ++Base1, ++Base2) {
-      if (!isLayoutCompatible(C, Base1->getType(), Base2->getType()))
-        return false;
-    }
-  } else if (const CXXRecordDecl *D2CXX = dyn_cast<CXXRecordDecl>(RD2)) {
-    // If only RD2 is a C++ class, it should have zero base classes.
-    if (D2CXX->getNumBases() > 0)
-      return false;
-  }
-
-  // Check the fields.
-  RecordDecl::field_iterator Field2 = RD2->field_begin(),
-                             Field2End = RD2->field_end(),
-                             Field1 = RD1->field_begin(),
-                             Field1End = RD1->field_end();
-  for ( ; Field1 != Field1End && Field2 != Field2End; ++Field1, ++Field2) {
-    if (!isLayoutCompatible(C, *Field1, *Field2))
-      return false;
-  }
-  if (Field1 != Field1End || Field2 != Field2End)
-    return false;
-
-  return true;
-}
-
-/// Check if two standard-layout unions are layout-compatible.
-/// (C++11 [class.mem] p18)
-static bool isLayoutCompatibleUnion(ASTContext &C, RecordDecl *RD1,
-                                    RecordDecl *RD2) {
-  llvm::SmallPtrSet<FieldDecl *, 8> UnmatchedFields;
-  for (auto *Field2 : RD2->fields())
-    UnmatchedFields.insert(Field2);
-
-  for (auto *Field1 : RD1->fields()) {
-    llvm::SmallPtrSet<FieldDecl *, 8>::iterator
-        I = UnmatchedFields.begin(),
-        E = UnmatchedFields.end();
-
-    for ( ; I != E; ++I) {
-      if (isLayoutCompatible(C, Field1, *I)) {
-        bool Result = UnmatchedFields.erase(*I);
-        (void) Result;
-        assert(Result);
-        break;
-      }
-    }
-    if (I == E)
-      return false;
-  }
-
-  return UnmatchedFields.empty();
-}
-
-static bool isLayoutCompatible(ASTContext &C, RecordDecl *RD1,
-                               RecordDecl *RD2) {
-  if (RD1->isUnion() != RD2->isUnion())
-    return false;
-
-  if (RD1->isUnion())
-    return isLayoutCompatibleUnion(C, RD1, RD2);
-  else
-    return isLayoutCompatibleStruct(C, RD1, RD2);
-}
-
-/// Check if two types are layout-compatible in C++11 sense.
-static bool isLayoutCompatible(ASTContext &C, QualType T1, QualType T2) {
-  if (T1.isNull() || T2.isNull())
-    return false;
-
-  // C++11 [basic.types] p11:
-  // If two types T1 and T2 are the same type, then T1 and T2 are
-  // layout-compatible types.
-  if (C.hasSameType(T1, T2))
-    return true;
-
-  T1 = T1.getCanonicalType().getUnqualifiedType();
-  T2 = T2.getCanonicalType().getUnqualifiedType();
-
-  const Type::TypeClass TC1 = T1->getTypeClass();
-  const Type::TypeClass TC2 = T2->getTypeClass();
-
-  if (TC1 != TC2)
-    return false;
-
-  if (TC1 == Type::Enum) {
-    return isLayoutCompatible(C,
-                              cast<EnumType>(T1)->getDecl(),
-                              cast<EnumType>(T2)->getDecl());
-  } else if (TC1 == Type::Record) {
-    if (!T1->isStandardLayoutType() || !T2->isStandardLayoutType())
-      return false;
-
-    return isLayoutCompatible(C,
-                              cast<RecordType>(T1)->getDecl(),
-                              cast<RecordType>(T2)->getDecl());
-  }
-
-  return false;
-}
-
-//===--- CHECK: pointer_with_type_tag attribute: datatypes should match ----//
-
-/// Given a type tag expression find the type tag itself.
-///
-/// \param TypeExpr Type tag expression, as it appears in user's code.
-///
-/// \param VD Declaration of an identifier that appears in a type tag.
-///
-/// \param MagicValue Type tag magic value.
-///
-/// \param isConstantEvaluated wether the evalaution should be performed in
-
-/// constant context.
-static bool FindTypeTagExpr(const Expr *TypeExpr, const ASTContext &Ctx,
-                            const ValueDecl **VD, uint64_t *MagicValue,
-                            bool isConstantEvaluated) {
-  while(true) {
-    if (!TypeExpr)
-      return false;
-
-    TypeExpr = TypeExpr->IgnoreParenImpCasts()->IgnoreParenCasts();
-
-    switch (TypeExpr->getStmtClass()) {
-    case Stmt::UnaryOperatorClass: {
-      const UnaryOperator *UO = cast<UnaryOperator>(TypeExpr);
-      if (UO->getOpcode() == UO_AddrOf || UO->getOpcode() == UO_Deref) {
-        TypeExpr = UO->getSubExpr();
-        continue;
-      }
-      return false;
-    }
-
-    case Stmt::DeclRefExprClass: {
-      const DeclRefExpr *DRE = cast<DeclRefExpr>(TypeExpr);
-      *VD = DRE->getDecl();
-      return true;
-    }
-
-    case Stmt::IntegerLiteralClass: {
-      const IntegerLiteral *IL = cast<IntegerLiteral>(TypeExpr);
-      llvm::APInt MagicValueAPInt = IL->getValue();
-      if (MagicValueAPInt.getActiveBits() <= 64) {
-        *MagicValue = MagicValueAPInt.getZExtValue();
-        return true;
-      } else
-        return false;
-    }
-
-    case Stmt::BinaryConditionalOperatorClass:
-    case Stmt::ConditionalOperatorClass: {
-      const AbstractConditionalOperator *ACO =
-          cast<AbstractConditionalOperator>(TypeExpr);
-      bool Result;
-      if (ACO->getCond()->EvaluateAsBooleanCondition(Result, Ctx,
-                                                     isConstantEvaluated)) {
-        if (Result)
-          TypeExpr = ACO->getTrueExpr();
-        else
-          TypeExpr = ACO->getFalseExpr();
-        continue;
-      }
-      return false;
-    }
-
-    case Stmt::BinaryOperatorClass: {
-      const BinaryOperator *BO = cast<BinaryOperator>(TypeExpr);
-      if (BO->getOpcode() == BO_Comma) {
-        TypeExpr = BO->getRHS();
-        continue;
-      }
-      return false;
-    }
-
-    default:
-      return false;
-    }
-  }
-}
-
-/// Retrieve the C type corresponding to type tag TypeExpr.
-///
-/// \param TypeExpr Expression that specifies a type tag.
-///
-/// \param MagicValues Registered magic values.
-///
-/// \param FoundWrongKind Set to true if a type tag was found, but of a wrong
-///        kind.
-///
-/// \param TypeInfo Information about the corresponding C type.
-///
-/// \param isConstantEvaluated wether the evalaution should be performed in
-/// constant context.
-///
-/// \returns true if the corresponding C type was found.
-static bool GetMatchingCType(
-    const IdentifierInfo *ArgumentKind, const Expr *TypeExpr,
-    const ASTContext &Ctx,
-    const llvm::DenseMap<Sema::TypeTagMagicValue, Sema::TypeTagData>
-        *MagicValues,
-    bool &FoundWrongKind, Sema::TypeTagData &TypeInfo,
-    bool isConstantEvaluated) {
-  FoundWrongKind = false;
-
-  // Variable declaration that has type_tag_for_datatype attribute.
-  const ValueDecl *VD = nullptr;
-
-  uint64_t MagicValue;
-
-  if (!FindTypeTagExpr(TypeExpr, Ctx, &VD, &MagicValue, isConstantEvaluated))
-    return false;
-
-  if (VD) {
-    if (TypeTagForDatatypeAttr *I = VD->getAttr<TypeTagForDatatypeAttr>()) {
-      if (I->getArgumentKind() != ArgumentKind) {
-        FoundWrongKind = true;
-        return false;
-      }
-      TypeInfo.Type = I->getMatchingCType();
-      TypeInfo.LayoutCompatible = I->getLayoutCompatible();
-      TypeInfo.MustBeNull = I->getMustBeNull();
-      return true;
-    }
-    return false;
-  }
-
-  if (!MagicValues)
-    return false;
-
-  llvm::DenseMap<Sema::TypeTagMagicValue,
-                 Sema::TypeTagData>::const_iterator I =
-      MagicValues->find(std::make_pair(ArgumentKind, MagicValue));
-  if (I == MagicValues->end())
-    return false;
-
-  TypeInfo = I->second;
-  return true;
-}
-
-void Sema::RegisterTypeTagForDatatype(const IdentifierInfo *ArgumentKind,
-                                      uint64_t MagicValue, QualType Type,
-                                      bool LayoutCompatible,
-                                      bool MustBeNull) {
-  if (!TypeTagForDatatypeMagicValues)
-    TypeTagForDatatypeMagicValues.reset(
-        new llvm::DenseMap<TypeTagMagicValue, TypeTagData>);
-
-  TypeTagMagicValue Magic(ArgumentKind, MagicValue);
-  (*TypeTagForDatatypeMagicValues)[Magic] =
-      TypeTagData(Type, LayoutCompatible, MustBeNull);
-}
-
-static bool IsSameCharType(QualType T1, QualType T2) {
-  const BuiltinType *BT1 = T1->getAs<BuiltinType>();
-  if (!BT1)
-    return false;
-
-  const BuiltinType *BT2 = T2->getAs<BuiltinType>();
-  if (!BT2)
-    return false;
-
-  BuiltinType::Kind T1Kind = BT1->getKind();
-  BuiltinType::Kind T2Kind = BT2->getKind();
-
-  return (T1Kind == BuiltinType::SChar  && T2Kind == BuiltinType::Char_S) ||
-         (T1Kind == BuiltinType::UChar  && T2Kind == BuiltinType::Char_U) ||
-         (T1Kind == BuiltinType::Char_U && T2Kind == BuiltinType::UChar) ||
-         (T1Kind == BuiltinType::Char_S && T2Kind == BuiltinType::SChar);
-}
-
-void Sema::CheckArgumentWithTypeTag(const ArgumentWithTypeTagAttr *Attr,
-                                    const ArrayRef<const Expr *> ExprArgs,
-                                    SourceLocation CallSiteLoc) {
-  const IdentifierInfo *ArgumentKind = Attr->getArgumentKind();
-  bool IsPointerAttr = Attr->getIsPointer();
-
-  // Retrieve the argument representing the 'type_tag'.
-  unsigned TypeTagIdxAST = Attr->getTypeTagIdx().getASTIndex();
-  if (TypeTagIdxAST >= ExprArgs.size()) {
-    Diag(CallSiteLoc, diag::err_tag_index_out_of_range)
-        << 0 << Attr->getTypeTagIdx().getSourceIndex();
-    return;
-  }
-  const Expr *TypeTagExpr = ExprArgs[TypeTagIdxAST];
-  bool FoundWrongKind;
-  TypeTagData TypeInfo;
-  if (!GetMatchingCType(ArgumentKind, TypeTagExpr, Context,
-                        TypeTagForDatatypeMagicValues.get(), FoundWrongKind,
-                        TypeInfo, isConstantEvaluated())) {
-    if (FoundWrongKind)
-      Diag(TypeTagExpr->getExprLoc(),
-           diag::warn_type_tag_for_datatype_wrong_kind)
-        << TypeTagExpr->getSourceRange();
-    return;
-  }
-
-  // Retrieve the argument representing the 'arg_idx'.
-  unsigned ArgumentIdxAST = Attr->getArgumentIdx().getASTIndex();
-  if (ArgumentIdxAST >= ExprArgs.size()) {
-    Diag(CallSiteLoc, diag::err_tag_index_out_of_range)
-        << 1 << Attr->getArgumentIdx().getSourceIndex();
-    return;
-  }
-  const Expr *ArgumentExpr = ExprArgs[ArgumentIdxAST];
-  if (IsPointerAttr) {
-    // Skip implicit cast of pointer to `void *' (as a function argument).
-    if (const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(ArgumentExpr))
-      if (ICE->getType()->isVoidPointerType() &&
-          ICE->getCastKind() == CK_BitCast)
-        ArgumentExpr = ICE->getSubExpr();
-  }
-  QualType ArgumentType = ArgumentExpr->getType();
-
-  // Passing a `void*' pointer shouldn't trigger a warning.
-  if (IsPointerAttr && ArgumentType->isVoidPointerType())
-    return;
-
-  if (TypeInfo.MustBeNull) {
-    // Type tag with matching void type requires a null pointer.
-    if (!ArgumentExpr->isNullPointerConstant(Context,
-                                             Expr::NPC_ValueDependentIsNotNull)) {
-      Diag(ArgumentExpr->getExprLoc(),
-           diag::warn_type_safety_null_pointer_required)
-          << ArgumentKind->getName()
-          << ArgumentExpr->getSourceRange()
-          << TypeTagExpr->getSourceRange();
-    }
-    return;
-  }
-
-  QualType RequiredType = TypeInfo.Type;
-  if (IsPointerAttr)
-    RequiredType = Context.getPointerType(RequiredType);
-
-  bool mismatch = false;
-  if (!TypeInfo.LayoutCompatible) {
-    mismatch = !Context.hasSameType(ArgumentType, RequiredType);
-
-    // C++11 [basic.fundamental] p1:
-    // Plain char, signed char, and unsigned char are three distinct types.
-    //
-    // But we treat plain `char' as equivalent to `signed char' or `unsigned
-    // char' depending on the current char signedness mode.
-    if (mismatch)
-      if ((IsPointerAttr && IsSameCharType(ArgumentType->getPointeeType(),
-                                           RequiredType->getPointeeType())) ||
-          (!IsPointerAttr && IsSameCharType(ArgumentType, RequiredType)))
-        mismatch = false;
-  } else
-    if (IsPointerAttr)
-      mismatch = !isLayoutCompatible(Context,
-                                     ArgumentType->getPointeeType(),
-                                     RequiredType->getPointeeType());
-    else
-      mismatch = !isLayoutCompatible(Context, ArgumentType, RequiredType);
-
-  if (mismatch)
-    Diag(ArgumentExpr->getExprLoc(), diag::warn_type_safety_type_mismatch)
-        << ArgumentType << ArgumentKind
-        << TypeInfo.LayoutCompatible << RequiredType
-        << ArgumentExpr->getSourceRange()
-        << TypeTagExpr->getSourceRange();
-}
-
-void Sema::AddPotentialMisalignedMembers(Expr *E, RecordDecl *RD, ValueDecl *MD,
-                                         CharUnits Alignment) {
-  MisalignedMembers.emplace_back(E, RD, MD, Alignment);
-}
-
-void Sema::DiagnoseMisalignedMembers() {
-  for (MisalignedMember &m : MisalignedMembers) {
-    const NamedDecl *ND = m.RD;
-    if (ND->getName().empty()) {
-      if (const TypedefNameDecl *TD = m.RD->getTypedefNameForAnonDecl())
-        ND = TD;
-    }
-    Diag(m.E->getBeginLoc(), diag::warn_taking_address_of_packed_member)
-        << m.MD << ND << m.E->getSourceRange();
-  }
-  MisalignedMembers.clear();
-}
-
-void Sema::DiscardMisalignedMemberAddress(const Type *T, Expr *E) {
-  E = E->IgnoreParens();
-  if (!T->isPointerType() && !T->isIntegerType())
-    return;
-  if (isa<UnaryOperator>(E) &&
-      cast<UnaryOperator>(E)->getOpcode() == UO_AddrOf) {
-    auto *Op = cast<UnaryOperator>(E)->getSubExpr()->IgnoreParens();
-    if (isa<MemberExpr>(Op)) {
-      auto MA = llvm::find(MisalignedMembers, MisalignedMember(Op));
-      if (MA != MisalignedMembers.end() &&
-          (T->isIntegerType() ||
-           (T->isPointerType() && (T->getPointeeType()->isIncompleteType() ||
-                                   Context.getTypeAlignInChars(
-                                       T->getPointeeType()) <= MA->Alignment))))
-        MisalignedMembers.erase(MA);
-    }
-  }
-}
-
-void Sema::RefersToMemberWithReducedAlignment(
-    Expr *E,
-    llvm::function_ref<void(Expr *, RecordDecl *, FieldDecl *, CharUnits)>
-        Action) {
-  const auto *ME = dyn_cast<MemberExpr>(E);
-  if (!ME)
-    return;
-
-  // No need to check expressions with an __unaligned-qualified type.
-  if (E->getType().getQualifiers().hasUnaligned())
-    return;
-
-  // For a chain of MemberExpr like "a.b.c.d" this list
-  // will keep FieldDecl's like [d, c, b].
-  SmallVector<FieldDecl *, 4> ReverseMemberChain;
-  const MemberExpr *TopME = nullptr;
-  bool AnyIsPacked = false;
-  do {
-    QualType BaseType = ME->getBase()->getType();
-    if (ME->isArrow())
-      BaseType = BaseType->getPointeeType();
-    RecordDecl *RD = BaseType->getAs<RecordType>()->getDecl();
-    if (RD->isInvalidDecl())
-      return;
-
-    ValueDecl *MD = ME->getMemberDecl();
-    auto *FD = dyn_cast<FieldDecl>(MD);
-    // We do not care about non-data members.
-    if (!FD || FD->isInvalidDecl())
-      return;
-
-    AnyIsPacked =
-        AnyIsPacked || (RD->hasAttr<PackedAttr>() || MD->hasAttr<PackedAttr>());
-    ReverseMemberChain.push_back(FD);
-
-    TopME = ME;
-    ME = dyn_cast<MemberExpr>(ME->getBase()->IgnoreParens());
-  } while (ME);
-  assert(TopME && "We did not compute a topmost MemberExpr!");
-
-  // Not the scope of this diagnostic.
-  if (!AnyIsPacked)
-    return;
-
-  const Expr *TopBase = TopME->getBase()->IgnoreParenImpCasts();
-  const auto *DRE = dyn_cast<DeclRefExpr>(TopBase);
-  // TODO: The innermost base of the member expression may be too complicated.
-  // For now, just disregard these cases. This is left for future
-  // improvement.
-  if (!DRE && !isa<CXXThisExpr>(TopBase))
-      return;
-
-  // Alignment expected by the whole expression.
-  CharUnits ExpectedAlignment = Context.getTypeAlignInChars(E->getType());
-
-  // No need to do anything else with this case.
-  if (ExpectedAlignment.isOne())
-    return;
-
-  // Synthesize offset of the whole access.
-  CharUnits Offset;
-  for (auto I = ReverseMemberChain.rbegin(); I != ReverseMemberChain.rend();
-       I++) {
-    Offset += Context.toCharUnitsFromBits(Context.getFieldOffset(*I));
-  }
-
-  // Compute the CompleteObjectAlignment as the alignment of the whole chain.
-  CharUnits CompleteObjectAlignment = Context.getTypeAlignInChars(
-      ReverseMemberChain.back()->getParent()->getTypeForDecl());
-
-  // The base expression of the innermost MemberExpr may give
-  // stronger guarantees than the class containing the member.
-  if (DRE && !TopME->isArrow()) {
-    const ValueDecl *VD = DRE->getDecl();
-    if (!VD->getType()->isReferenceType())
-      CompleteObjectAlignment =
-          std::max(CompleteObjectAlignment, Context.getDeclAlign(VD));
-  }
-
-  // Check if the synthesized offset fulfills the alignment.
-  if (Offset % ExpectedAlignment != 0 ||
-      // It may fulfill the offset it but the effective alignment may still be
-      // lower than the expected expression alignment.
-      CompleteObjectAlignment < ExpectedAlignment) {
-    // If this happens, we want to determine a sensible culprit of this.
-    // Intuitively, watching the chain of member expressions from right to
-    // left, we start with the required alignment (as required by the field
-    // type) but some packed attribute in that chain has reduced the alignment.
-    // It may happen that another packed structure increases it again. But if
-    // we are here such increase has not been enough. So pointing the first
-    // FieldDecl that either is packed or else its RecordDecl is,
-    // seems reasonable.
-    FieldDecl *FD = nullptr;
-    CharUnits Alignment;
-    for (FieldDecl *FDI : ReverseMemberChain) {
-      if (FDI->hasAttr<PackedAttr>() ||
-          FDI->getParent()->hasAttr<PackedAttr>()) {
-        FD = FDI;
-        Alignment = std::min(
-            Context.getTypeAlignInChars(FD->getType()),
-            Context.getTypeAlignInChars(FD->getParent()->getTypeForDecl()));
-        break;
-      }
-    }
-    assert(FD && "We did not find a packed FieldDecl!");
-    Action(E, FD->getParent(), FD, Alignment);
-  }
-}
-
-void Sema::CheckAddressOfPackedMember(Expr *rhs) {
-  using namespace std::placeholders;
-
-  RefersToMemberWithReducedAlignment(
-      rhs, std::bind(&Sema::AddPotentialMisalignedMembers, std::ref(*this), _1,
-                     _2, _3, _4));
-}