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, 177 deletions

diff --git a/contrib/llvm/lib/Transforms/Utils/MetaRenamer.cpp b/contrib/llvm/lib/Transforms/Utils/MetaRenamer.cpp
deleted file mode 100644
index c0b7edc547fd..000000000000
--- a/contrib/llvm/lib/Transforms/Utils/MetaRenamer.cpp
+++ /dev/null
@@ -1,177 +0,0 @@
-//===- MetaRenamer.cpp - Rename everything with metasyntatic names --------===//
-//
-// 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 pass renames everything with metasyntatic names. The intent is to use
-// this pass after bugpoint reduction to conceal the nature of the original
-// program.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/Analysis/TargetLibraryInfo.h"
-#include "llvm/IR/Argument.h"
-#include "llvm/IR/BasicBlock.h"
-#include "llvm/IR/DerivedTypes.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/GlobalAlias.h"
-#include "llvm/IR/GlobalVariable.h"
-#include "llvm/IR/Instruction.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/Type.h"
-#include "llvm/IR/TypeFinder.h"
-#include "llvm/Pass.h"
-#include "llvm/Transforms/Utils.h"
-
-using namespace llvm;
-
-static const char *const metaNames[] = {
-  // See http://en.wikipedia.org/wiki/Metasyntactic_variable
-  "foo", "bar", "baz", "quux", "barney", "snork", "zot", "blam", "hoge",
-  "wibble", "wobble", "widget", "wombat", "ham", "eggs", "pluto", "spam"
-};
-
-namespace {
-
-  // This PRNG is from the ISO C spec. It is intentionally simple and
-  // unsuitable for cryptographic use. We're just looking for enough
-  // variety to surprise and delight users.
-  struct PRNG {
-    unsigned long next;
-
-    void srand(unsigned int seed) {
-      next = seed;
-    }
-
-    int rand() {
-      next = next * 1103515245 + 12345;
-      return (unsigned int)(next / 65536) % 32768;
-    }
-  };
-
-  struct Renamer {
-    Renamer(unsigned int seed) {
-      prng.srand(seed);
-    }
-
-    const char *newName() {
-      return metaNames[prng.rand() % array_lengthof(metaNames)];
-    }
-
-    PRNG prng;
-  };
-
-  struct MetaRenamer : public ModulePass {
-    // Pass identification, replacement for typeid
-    static char ID;
-
-    MetaRenamer() : ModulePass(ID) {
-      initializeMetaRenamerPass(*PassRegistry::getPassRegistry());
-    }
-
-    void getAnalysisUsage(AnalysisUsage &AU) const override {
-      AU.addRequired<TargetLibraryInfoWrapperPass>();
-      AU.setPreservesAll();
-    }
-
-    bool runOnModule(Module &M) override {
-      // Seed our PRNG with simple additive sum of ModuleID. We're looking to
-      // simply avoid always having the same function names, and we need to
-      // remain deterministic.
-      unsigned int randSeed = 0;
-      for (auto C : M.getModuleIdentifier())
-        randSeed += C;
-
-      Renamer renamer(randSeed);
-
-      // Rename all aliases
-      for (auto AI = M.alias_begin(), AE = M.alias_end(); AI != AE; ++AI) {
-        StringRef Name = AI->getName();
-        if (Name.startswith("llvm.") || (!Name.empty() && Name[0] == 1))
-          continue;
-
-        AI->setName("alias");
-      }
-
-      // Rename all global variables
-      for (auto GI = M.global_begin(), GE = M.global_end(); GI != GE; ++GI) {
-        StringRef Name = GI->getName();
-        if (Name.startswith("llvm.") || (!Name.empty() && Name[0] == 1))
-          continue;
-
-        GI->setName("global");
-      }
-
-      // Rename all struct types
-      TypeFinder StructTypes;
-      StructTypes.run(M, true);
-      for (StructType *STy : StructTypes) {
-        if (STy->isLiteral() || STy->getName().empty()) continue;
-
-        SmallString<128> NameStorage;
-        STy->setName((Twine("struct.") +
-          renamer.newName()).toStringRef(NameStorage));
-      }
-
-      // Rename all functions
-      const TargetLibraryInfo &TLI =
-          getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
-      for (auto &F : M) {
-        StringRef Name = F.getName();
-        LibFunc Tmp;
-        // Leave library functions alone because their presence or absence could
-        // affect the behavior of other passes.
-        if (Name.startswith("llvm.") || (!Name.empty() && Name[0] == 1) ||
-            TLI.getLibFunc(F, Tmp))
-          continue;
-
-        // Leave @main alone. The output of -metarenamer might be passed to
-        // lli for execution and the latter needs a main entry point.
-        if (Name != "main")
-          F.setName(renamer.newName());
-
-        runOnFunction(F);
-      }
-      return true;
-    }
-
-    bool runOnFunction(Function &F) {
-      for (auto AI = F.arg_begin(), AE = F.arg_end(); AI != AE; ++AI)
-        if (!AI->getType()->isVoidTy())
-          AI->setName("arg");
-
-      for (auto &BB : F) {
-        BB.setName("bb");
-
-        for (auto &I : BB)
-          if (!I.getType()->isVoidTy())
-            I.setName("tmp");
-      }
-      return true;
-    }
-  };
-
-} // end anonymous namespace
-
-char MetaRenamer::ID = 0;
-
-INITIALIZE_PASS_BEGIN(MetaRenamer, "metarenamer",
-                      "Assign new names to everything", false, false)
-INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
-INITIALIZE_PASS_END(MetaRenamer, "metarenamer",
-                    "Assign new names to everything", false, false)
-
-//===----------------------------------------------------------------------===//
-//
-// MetaRenamer - Rename everything with metasyntactic names.
-//
-ModulePass *llvm::createMetaRenamerPass() {
-  return new MetaRenamer();
-}