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Diffstat (limited to 'contrib/llvm/lib/Target/CppBackend/CPPBackend.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/CppBackend/CPPBackend.cpp | 2127 |
1 files changed, 2127 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/CppBackend/CPPBackend.cpp b/contrib/llvm/lib/Target/CppBackend/CPPBackend.cpp new file mode 100644 index 000000000000..ddc7a66c9f39 --- /dev/null +++ b/contrib/llvm/lib/Target/CppBackend/CPPBackend.cpp @@ -0,0 +1,2127 @@ +//===-- CPPBackend.cpp - Library for converting LLVM code to C++ code -----===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the writing of the LLVM IR as a set of C++ calls to the +// LLVM IR interface. The input module is assumed to be verified. +// +//===----------------------------------------------------------------------===// + +#include "CPPTargetMachine.h" +#include "llvm/ADT/SmallPtrSet.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/Config/config.h" +#include "llvm/IR/CallingConv.h" +#include "llvm/IR/Constants.h" +#include "llvm/IR/DerivedTypes.h" +#include "llvm/IR/InlineAsm.h" +#include "llvm/IR/Instruction.h" +#include "llvm/IR/Instructions.h" +#include "llvm/IR/Module.h" +#include "llvm/MC/MCAsmInfo.h" +#include "llvm/MC/MCInstrInfo.h" +#include "llvm/MC/MCSubtargetInfo.h" +#include "llvm/Pass.h" +#include "llvm/PassManager.h" +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FormattedStream.h" +#include "llvm/Support/TargetRegistry.h" +#include <algorithm> +#include <cctype> +#include <cstdio> +#include <map> +#include <set> +using namespace llvm; + +static cl::opt<std::string> +FuncName("cppfname", cl::desc("Specify the name of the generated function"), + cl::value_desc("function name")); + +enum WhatToGenerate { + GenProgram, + GenModule, + GenContents, + GenFunction, + GenFunctions, + GenInline, + GenVariable, + GenType +}; + +static cl::opt<WhatToGenerate> GenerationType("cppgen", cl::Optional, + cl::desc("Choose what kind of output to generate"), + cl::init(GenProgram), + cl::values( + clEnumValN(GenProgram, "program", "Generate a complete program"), + clEnumValN(GenModule, "module", "Generate a module definition"), + clEnumValN(GenContents, "contents", "Generate contents of a module"), + clEnumValN(GenFunction, "function", "Generate a function definition"), + clEnumValN(GenFunctions,"functions", "Generate all function definitions"), + clEnumValN(GenInline, "inline", "Generate an inline function"), + clEnumValN(GenVariable, "variable", "Generate a variable definition"), + clEnumValN(GenType, "type", "Generate a type definition"), + clEnumValEnd + ) +); + +static cl::opt<std::string> NameToGenerate("cppfor", cl::Optional, + cl::desc("Specify the name of the thing to generate"), + cl::init("!bad!")); + +extern "C" void LLVMInitializeCppBackendTarget() { + // Register the target. + RegisterTargetMachine<CPPTargetMachine> X(TheCppBackendTarget); +} + +namespace { + typedef std::vector<Type*> TypeList; + typedef std::map<Type*,std::string> TypeMap; + typedef std::map<const Value*,std::string> ValueMap; + typedef std::set<std::string> NameSet; + typedef std::set<Type*> TypeSet; + typedef std::set<const Value*> ValueSet; + typedef std::map<const Value*,std::string> ForwardRefMap; + + /// CppWriter - This class is the main chunk of code that converts an LLVM + /// module to a C++ translation unit. + class CppWriter : public ModulePass { + formatted_raw_ostream &Out; + const Module *TheModule; + uint64_t uniqueNum; + TypeMap TypeNames; + ValueMap ValueNames; + NameSet UsedNames; + TypeSet DefinedTypes; + ValueSet DefinedValues; + ForwardRefMap ForwardRefs; + bool is_inline; + unsigned indent_level; + + public: + static char ID; + explicit CppWriter(formatted_raw_ostream &o) : + ModulePass(ID), Out(o), uniqueNum(0), is_inline(false), indent_level(0){} + + virtual const char *getPassName() const { return "C++ backend"; } + + bool runOnModule(Module &M); + + void printProgram(const std::string& fname, const std::string& modName ); + void printModule(const std::string& fname, const std::string& modName ); + void printContents(const std::string& fname, const std::string& modName ); + void printFunction(const std::string& fname, const std::string& funcName ); + void printFunctions(); + void printInline(const std::string& fname, const std::string& funcName ); + void printVariable(const std::string& fname, const std::string& varName ); + void printType(const std::string& fname, const std::string& typeName ); + + void error(const std::string& msg); + + + formatted_raw_ostream& nl(formatted_raw_ostream &Out, int delta = 0); + inline void in() { indent_level++; } + inline void out() { if (indent_level >0) indent_level--; } + + private: + void printLinkageType(GlobalValue::LinkageTypes LT); + void printVisibilityType(GlobalValue::VisibilityTypes VisTypes); + void printThreadLocalMode(GlobalVariable::ThreadLocalMode TLM); + void printCallingConv(CallingConv::ID cc); + void printEscapedString(const std::string& str); + void printCFP(const ConstantFP* CFP); + + std::string getCppName(Type* val); + inline void printCppName(Type* val); + + std::string getCppName(const Value* val); + inline void printCppName(const Value* val); + + void printAttributes(const AttributeSet &PAL, const std::string &name); + void printType(Type* Ty); + void printTypes(const Module* M); + + void printConstant(const Constant *CPV); + void printConstants(const Module* M); + + void printVariableUses(const GlobalVariable *GV); + void printVariableHead(const GlobalVariable *GV); + void printVariableBody(const GlobalVariable *GV); + + void printFunctionUses(const Function *F); + void printFunctionHead(const Function *F); + void printFunctionBody(const Function *F); + void printInstruction(const Instruction *I, const std::string& bbname); + std::string getOpName(const Value*); + + void printModuleBody(); + }; +} // end anonymous namespace. + +formatted_raw_ostream &CppWriter::nl(formatted_raw_ostream &Out, int delta) { + Out << '\n'; + if (delta >= 0 || indent_level >= unsigned(-delta)) + indent_level += delta; + Out.indent(indent_level); + return Out; +} + +static inline void sanitize(std::string &str) { + for (size_t i = 0; i < str.length(); ++i) + if (!isalnum(str[i]) && str[i] != '_') + str[i] = '_'; +} + +static std::string getTypePrefix(Type *Ty) { + switch (Ty->getTypeID()) { + case Type::VoidTyID: return "void_"; + case Type::IntegerTyID: + return "int" + utostr(cast<IntegerType>(Ty)->getBitWidth()) + "_"; + case Type::FloatTyID: return "float_"; + case Type::DoubleTyID: return "double_"; + case Type::LabelTyID: return "label_"; + case Type::FunctionTyID: return "func_"; + case Type::StructTyID: return "struct_"; + case Type::ArrayTyID: return "array_"; + case Type::PointerTyID: return "ptr_"; + case Type::VectorTyID: return "packed_"; + default: return "other_"; + } +} + +void CppWriter::error(const std::string& msg) { + report_fatal_error(msg); +} + +static inline std::string ftostr(const APFloat& V) { + std::string Buf; + if (&V.getSemantics() == &APFloat::IEEEdouble) { + raw_string_ostream(Buf) << V.convertToDouble(); + return Buf; + } else if (&V.getSemantics() == &APFloat::IEEEsingle) { + raw_string_ostream(Buf) << (double)V.convertToFloat(); + return Buf; + } + return "<unknown format in ftostr>"; // error +} + +// printCFP - Print a floating point constant .. very carefully :) +// This makes sure that conversion to/from floating yields the same binary +// result so that we don't lose precision. +void CppWriter::printCFP(const ConstantFP *CFP) { + bool ignored; + APFloat APF = APFloat(CFP->getValueAPF()); // copy + if (CFP->getType() == Type::getFloatTy(CFP->getContext())) + APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &ignored); + Out << "ConstantFP::get(mod->getContext(), "; + Out << "APFloat("; +#if HAVE_PRINTF_A + char Buffer[100]; + sprintf(Buffer, "%A", APF.convertToDouble()); + if ((!strncmp(Buffer, "0x", 2) || + !strncmp(Buffer, "-0x", 3) || + !strncmp(Buffer, "+0x", 3)) && + APF.bitwiseIsEqual(APFloat(atof(Buffer)))) { + if (CFP->getType() == Type::getDoubleTy(CFP->getContext())) + Out << "BitsToDouble(" << Buffer << ")"; + else + Out << "BitsToFloat((float)" << Buffer << ")"; + Out << ")"; + } else { +#endif + std::string StrVal = ftostr(CFP->getValueAPF()); + + while (StrVal[0] == ' ') + StrVal.erase(StrVal.begin()); + + // Check to make sure that the stringized number is not some string like + // "Inf" or NaN. Check that the string matches the "[-+]?[0-9]" regex. + if (((StrVal[0] >= '0' && StrVal[0] <= '9') || + ((StrVal[0] == '-' || StrVal[0] == '+') && + (StrVal[1] >= '0' && StrVal[1] <= '9'))) && + (CFP->isExactlyValue(atof(StrVal.c_str())))) { + if (CFP->getType() == Type::getDoubleTy(CFP->getContext())) + Out << StrVal; + else + Out << StrVal << "f"; + } else if (CFP->getType() == Type::getDoubleTy(CFP->getContext())) + Out << "BitsToDouble(0x" + << utohexstr(CFP->getValueAPF().bitcastToAPInt().getZExtValue()) + << "ULL) /* " << StrVal << " */"; + else + Out << "BitsToFloat(0x" + << utohexstr((uint32_t)CFP->getValueAPF(). + bitcastToAPInt().getZExtValue()) + << "U) /* " << StrVal << " */"; + Out << ")"; +#if HAVE_PRINTF_A + } +#endif + Out << ")"; +} + +void CppWriter::printCallingConv(CallingConv::ID cc){ + // Print the calling convention. + switch (cc) { + case CallingConv::C: Out << "CallingConv::C"; break; + case CallingConv::Fast: Out << "CallingConv::Fast"; break; + case CallingConv::Cold: Out << "CallingConv::Cold"; break; + case CallingConv::FirstTargetCC: Out << "CallingConv::FirstTargetCC"; break; + default: Out << cc; break; + } +} + +void CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) { + switch (LT) { + case GlobalValue::InternalLinkage: + Out << "GlobalValue::InternalLinkage"; break; + case GlobalValue::PrivateLinkage: + Out << "GlobalValue::PrivateLinkage"; break; + case GlobalValue::LinkerPrivateLinkage: + Out << "GlobalValue::LinkerPrivateLinkage"; break; + case GlobalValue::LinkerPrivateWeakLinkage: + Out << "GlobalValue::LinkerPrivateWeakLinkage"; break; + case GlobalValue::AvailableExternallyLinkage: + Out << "GlobalValue::AvailableExternallyLinkage "; break; + case GlobalValue::LinkOnceAnyLinkage: + Out << "GlobalValue::LinkOnceAnyLinkage "; break; + case GlobalValue::LinkOnceODRLinkage: + Out << "GlobalValue::LinkOnceODRLinkage "; break; + case GlobalValue::WeakAnyLinkage: + Out << "GlobalValue::WeakAnyLinkage"; break; + case GlobalValue::WeakODRLinkage: + Out << "GlobalValue::WeakODRLinkage"; break; + case GlobalValue::AppendingLinkage: + Out << "GlobalValue::AppendingLinkage"; break; + case GlobalValue::ExternalLinkage: + Out << "GlobalValue::ExternalLinkage"; break; + case GlobalValue::DLLImportLinkage: + Out << "GlobalValue::DLLImportLinkage"; break; + case GlobalValue::DLLExportLinkage: + Out << "GlobalValue::DLLExportLinkage"; break; + case GlobalValue::ExternalWeakLinkage: + Out << "GlobalValue::ExternalWeakLinkage"; break; + case GlobalValue::CommonLinkage: + Out << "GlobalValue::CommonLinkage"; break; + } +} + +void CppWriter::printVisibilityType(GlobalValue::VisibilityTypes VisType) { + switch (VisType) { + case GlobalValue::DefaultVisibility: + Out << "GlobalValue::DefaultVisibility"; + break; + case GlobalValue::HiddenVisibility: + Out << "GlobalValue::HiddenVisibility"; + break; + case GlobalValue::ProtectedVisibility: + Out << "GlobalValue::ProtectedVisibility"; + break; + } +} + +void CppWriter::printThreadLocalMode(GlobalVariable::ThreadLocalMode TLM) { + switch (TLM) { + case GlobalVariable::NotThreadLocal: + Out << "GlobalVariable::NotThreadLocal"; + break; + case GlobalVariable::GeneralDynamicTLSModel: + Out << "GlobalVariable::GeneralDynamicTLSModel"; + break; + case GlobalVariable::LocalDynamicTLSModel: + Out << "GlobalVariable::LocalDynamicTLSModel"; + break; + case GlobalVariable::InitialExecTLSModel: + Out << "GlobalVariable::InitialExecTLSModel"; + break; + case GlobalVariable::LocalExecTLSModel: + Out << "GlobalVariable::LocalExecTLSModel"; + break; + } +} + +// printEscapedString - Print each character of the specified string, escaping +// it if it is not printable or if it is an escape char. +void CppWriter::printEscapedString(const std::string &Str) { + for (unsigned i = 0, e = Str.size(); i != e; ++i) { + unsigned char C = Str[i]; + if (isprint(C) && C != '"' && C != '\\') { + Out << C; + } else { + Out << "\\x" + << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A')) + << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A')); + } + } +} + +std::string CppWriter::getCppName(Type* Ty) { + // First, handle the primitive types .. easy + if (Ty->isPrimitiveType() || Ty->isIntegerTy()) { + switch (Ty->getTypeID()) { + case Type::VoidTyID: return "Type::getVoidTy(mod->getContext())"; + case Type::IntegerTyID: { + unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth(); + return "IntegerType::get(mod->getContext(), " + utostr(BitWidth) + ")"; + } + case Type::X86_FP80TyID: return "Type::getX86_FP80Ty(mod->getContext())"; + case Type::FloatTyID: return "Type::getFloatTy(mod->getContext())"; + case Type::DoubleTyID: return "Type::getDoubleTy(mod->getContext())"; + case Type::LabelTyID: return "Type::getLabelTy(mod->getContext())"; + case Type::X86_MMXTyID: return "Type::getX86_MMXTy(mod->getContext())"; + default: + error("Invalid primitive type"); + break; + } + // shouldn't be returned, but make it sensible + return "Type::getVoidTy(mod->getContext())"; + } + + // Now, see if we've seen the type before and return that + TypeMap::iterator I = TypeNames.find(Ty); + if (I != TypeNames.end()) + return I->second; + + // Okay, let's build a new name for this type. Start with a prefix + const char* prefix = 0; + switch (Ty->getTypeID()) { + case Type::FunctionTyID: prefix = "FuncTy_"; break; + case Type::StructTyID: prefix = "StructTy_"; break; + case Type::ArrayTyID: prefix = "ArrayTy_"; break; + case Type::PointerTyID: prefix = "PointerTy_"; break; + case Type::VectorTyID: prefix = "VectorTy_"; break; + default: prefix = "OtherTy_"; break; // prevent breakage + } + + // See if the type has a name in the symboltable and build accordingly + std::string name; + if (StructType *STy = dyn_cast<StructType>(Ty)) + if (STy->hasName()) + name = STy->getName(); + + if (name.empty()) + name = utostr(uniqueNum++); + + name = std::string(prefix) + name; + sanitize(name); + + // Save the name + return TypeNames[Ty] = name; +} + +void CppWriter::printCppName(Type* Ty) { + printEscapedString(getCppName(Ty)); +} + +std::string CppWriter::getCppName(const Value* val) { + std::string name; + ValueMap::iterator I = ValueNames.find(val); + if (I != ValueNames.end() && I->first == val) + return I->second; + + if (const GlobalVariable* GV = dyn_cast<GlobalVariable>(val)) { + name = std::string("gvar_") + + getTypePrefix(GV->getType()->getElementType()); + } else if (isa<Function>(val)) { + name = std::string("func_"); + } else if (const Constant* C = dyn_cast<Constant>(val)) { + name = std::string("const_") + getTypePrefix(C->getType()); + } else if (const Argument* Arg = dyn_cast<Argument>(val)) { + if (is_inline) { + unsigned argNum = std::distance(Arg->getParent()->arg_begin(), + Function::const_arg_iterator(Arg)) + 1; + name = std::string("arg_") + utostr(argNum); + NameSet::iterator NI = UsedNames.find(name); + if (NI != UsedNames.end()) + name += std::string("_") + utostr(uniqueNum++); + UsedNames.insert(name); + return ValueNames[val] = name; + } else { + name = getTypePrefix(val->getType()); + } + } else { + name = getTypePrefix(val->getType()); + } + if (val->hasName()) + name += val->getName(); + else + name += utostr(uniqueNum++); + sanitize(name); + NameSet::iterator NI = UsedNames.find(name); + if (NI != UsedNames.end()) + name += std::string("_") + utostr(uniqueNum++); + UsedNames.insert(name); + return ValueNames[val] = name; +} + +void CppWriter::printCppName(const Value* val) { + printEscapedString(getCppName(val)); +} + +void CppWriter::printAttributes(const AttributeSet &PAL, + const std::string &name) { + Out << "AttributeSet " << name << "_PAL;"; + nl(Out); + if (!PAL.isEmpty()) { + Out << '{'; in(); nl(Out); + Out << "SmallVector<AttributeSet, 4> Attrs;"; nl(Out); + Out << "AttributeSet PAS;"; in(); nl(Out); + for (unsigned i = 0; i < PAL.getNumSlots(); ++i) { + unsigned index = PAL.getSlotIndex(i); + AttrBuilder attrs(PAL.getSlotAttributes(i), index); + Out << "{"; in(); nl(Out); + Out << "AttrBuilder B;"; nl(Out); + +#define HANDLE_ATTR(X) \ + if (attrs.contains(Attribute::X)) { \ + Out << "B.addAttribute(Attribute::" #X ");"; nl(Out); \ + attrs.removeAttribute(Attribute::X); \ + } + + HANDLE_ATTR(SExt); + HANDLE_ATTR(ZExt); + HANDLE_ATTR(NoReturn); + HANDLE_ATTR(InReg); + HANDLE_ATTR(StructRet); + HANDLE_ATTR(NoUnwind); + HANDLE_ATTR(NoAlias); + HANDLE_ATTR(ByVal); + HANDLE_ATTR(Nest); + HANDLE_ATTR(ReadNone); + HANDLE_ATTR(ReadOnly); + HANDLE_ATTR(NoInline); + HANDLE_ATTR(AlwaysInline); + HANDLE_ATTR(OptimizeNone); + HANDLE_ATTR(OptimizeForSize); + HANDLE_ATTR(StackProtect); + HANDLE_ATTR(StackProtectReq); + HANDLE_ATTR(StackProtectStrong); + HANDLE_ATTR(NoCapture); + HANDLE_ATTR(NoRedZone); + HANDLE_ATTR(NoImplicitFloat); + HANDLE_ATTR(Naked); + HANDLE_ATTR(InlineHint); + HANDLE_ATTR(ReturnsTwice); + HANDLE_ATTR(UWTable); + HANDLE_ATTR(NonLazyBind); + HANDLE_ATTR(MinSize); +#undef HANDLE_ATTR + + if (attrs.contains(Attribute::StackAlignment)) { + Out << "B.addStackAlignmentAttr(" << attrs.getStackAlignment()<<')'; + nl(Out); + attrs.removeAttribute(Attribute::StackAlignment); + } + + Out << "PAS = AttributeSet::get(mod->getContext(), "; + if (index == ~0U) + Out << "~0U,"; + else + Out << index << "U,"; + Out << " B);"; out(); nl(Out); + Out << "}"; out(); nl(Out); + nl(Out); + Out << "Attrs.push_back(PAS);"; nl(Out); + } + Out << name << "_PAL = AttributeSet::get(mod->getContext(), Attrs);"; + nl(Out); + out(); nl(Out); + Out << '}'; nl(Out); + } +} + +void CppWriter::printType(Type* Ty) { + // We don't print definitions for primitive types + if (Ty->isPrimitiveType() || Ty->isIntegerTy()) + return; + + // If we already defined this type, we don't need to define it again. + if (DefinedTypes.find(Ty) != DefinedTypes.end()) + return; + + // Everything below needs the name for the type so get it now. + std::string typeName(getCppName(Ty)); + + // Print the type definition + switch (Ty->getTypeID()) { + case Type::FunctionTyID: { + FunctionType* FT = cast<FunctionType>(Ty); + Out << "std::vector<Type*>" << typeName << "_args;"; + nl(Out); + FunctionType::param_iterator PI = FT->param_begin(); + FunctionType::param_iterator PE = FT->param_end(); + for (; PI != PE; ++PI) { + Type* argTy = static_cast<Type*>(*PI); + printType(argTy); + std::string argName(getCppName(argTy)); + Out << typeName << "_args.push_back(" << argName; + Out << ");"; + nl(Out); + } + printType(FT->getReturnType()); + std::string retTypeName(getCppName(FT->getReturnType())); + Out << "FunctionType* " << typeName << " = FunctionType::get("; + in(); nl(Out) << "/*Result=*/" << retTypeName; + Out << ","; + nl(Out) << "/*Params=*/" << typeName << "_args,"; + nl(Out) << "/*isVarArg=*/" << (FT->isVarArg() ? "true" : "false") << ");"; + out(); + nl(Out); + break; + } + case Type::StructTyID: { + StructType* ST = cast<StructType>(Ty); + if (!ST->isLiteral()) { + Out << "StructType *" << typeName << " = mod->getTypeByName(\""; + printEscapedString(ST->getName()); + Out << "\");"; + nl(Out); + Out << "if (!" << typeName << ") {"; + nl(Out); + Out << typeName << " = "; + Out << "StructType::create(mod->getContext(), \""; + printEscapedString(ST->getName()); + Out << "\");"; + nl(Out); + Out << "}"; + nl(Out); + // Indicate that this type is now defined. + DefinedTypes.insert(Ty); + } + + Out << "std::vector<Type*>" << typeName << "_fields;"; + nl(Out); + StructType::element_iterator EI = ST->element_begin(); + StructType::element_iterator EE = ST->element_end(); + for (; EI != EE; ++EI) { + Type* fieldTy = static_cast<Type*>(*EI); + printType(fieldTy); + std::string fieldName(getCppName(fieldTy)); + Out << typeName << "_fields.push_back(" << fieldName; + Out << ");"; + nl(Out); + } + + if (ST->isLiteral()) { + Out << "StructType *" << typeName << " = "; + Out << "StructType::get(" << "mod->getContext(), "; + } else { + Out << "if (" << typeName << "->isOpaque()) {"; + nl(Out); + Out << typeName << "->setBody("; + } + + Out << typeName << "_fields, /*isPacked=*/" + << (ST->isPacked() ? "true" : "false") << ");"; + nl(Out); + if (!ST->isLiteral()) { + Out << "}"; + nl(Out); + } + break; + } + case Type::ArrayTyID: { + ArrayType* AT = cast<ArrayType>(Ty); + Type* ET = AT->getElementType(); + printType(ET); + if (DefinedTypes.find(Ty) == DefinedTypes.end()) { + std::string elemName(getCppName(ET)); + Out << "ArrayType* " << typeName << " = ArrayType::get(" + << elemName + << ", " << utostr(AT->getNumElements()) << ");"; + nl(Out); + } + break; + } + case Type::PointerTyID: { + PointerType* PT = cast<PointerType>(Ty); + Type* ET = PT->getElementType(); + printType(ET); + if (DefinedTypes.find(Ty) == DefinedTypes.end()) { + std::string elemName(getCppName(ET)); + Out << "PointerType* " << typeName << " = PointerType::get(" + << elemName + << ", " << utostr(PT->getAddressSpace()) << ");"; + nl(Out); + } + break; + } + case Type::VectorTyID: { + VectorType* PT = cast<VectorType>(Ty); + Type* ET = PT->getElementType(); + printType(ET); + if (DefinedTypes.find(Ty) == DefinedTypes.end()) { + std::string elemName(getCppName(ET)); + Out << "VectorType* " << typeName << " = VectorType::get(" + << elemName + << ", " << utostr(PT->getNumElements()) << ");"; + nl(Out); + } + break; + } + default: + error("Invalid TypeID"); + } + + // Indicate that this type is now defined. + DefinedTypes.insert(Ty); + + // Finally, separate the type definition from other with a newline. + nl(Out); +} + +void CppWriter::printTypes(const Module* M) { + // Add all of the global variables to the value table. + for (Module::const_global_iterator I = TheModule->global_begin(), + E = TheModule->global_end(); I != E; ++I) { + if (I->hasInitializer()) + printType(I->getInitializer()->getType()); + printType(I->getType()); + } + + // Add all the functions to the table + for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end(); + FI != FE; ++FI) { + printType(FI->getReturnType()); + printType(FI->getFunctionType()); + // Add all the function arguments + for (Function::const_arg_iterator AI = FI->arg_begin(), + AE = FI->arg_end(); AI != AE; ++AI) { + printType(AI->getType()); + } + + // Add all of the basic blocks and instructions + for (Function::const_iterator BB = FI->begin(), + E = FI->end(); BB != E; ++BB) { + printType(BB->getType()); + for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E; + ++I) { + printType(I->getType()); + for (unsigned i = 0; i < I->getNumOperands(); ++i) + printType(I->getOperand(i)->getType()); + } + } + } +} + + +// printConstant - Print out a constant pool entry... +void CppWriter::printConstant(const Constant *CV) { + // First, if the constant is actually a GlobalValue (variable or function) + // or its already in the constant list then we've printed it already and we + // can just return. + if (isa<GlobalValue>(CV) || ValueNames.find(CV) != ValueNames.end()) + return; + + std::string constName(getCppName(CV)); + std::string typeName(getCppName(CV->getType())); + + if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) { + std::string constValue = CI->getValue().toString(10, true); + Out << "ConstantInt* " << constName + << " = ConstantInt::get(mod->getContext(), APInt(" + << cast<IntegerType>(CI->getType())->getBitWidth() + << ", StringRef(\"" << constValue << "\"), 10));"; + } else if (isa<ConstantAggregateZero>(CV)) { + Out << "ConstantAggregateZero* " << constName + << " = ConstantAggregateZero::get(" << typeName << ");"; + } else if (isa<ConstantPointerNull>(CV)) { + Out << "ConstantPointerNull* " << constName + << " = ConstantPointerNull::get(" << typeName << ");"; + } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) { + Out << "ConstantFP* " << constName << " = "; + printCFP(CFP); + Out << ";"; + } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) { + Out << "std::vector<Constant*> " << constName << "_elems;"; + nl(Out); + unsigned N = CA->getNumOperands(); + for (unsigned i = 0; i < N; ++i) { + printConstant(CA->getOperand(i)); // recurse to print operands + Out << constName << "_elems.push_back(" + << getCppName(CA->getOperand(i)) << ");"; + nl(Out); + } + Out << "Constant* " << constName << " = ConstantArray::get(" + << typeName << ", " << constName << "_elems);"; + } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) { + Out << "std::vector<Constant*> " << constName << "_fields;"; + nl(Out); + unsigned N = CS->getNumOperands(); + for (unsigned i = 0; i < N; i++) { + printConstant(CS->getOperand(i)); + Out << constName << "_fields.push_back(" + << getCppName(CS->getOperand(i)) << ");"; + nl(Out); + } + Out << "Constant* " << constName << " = ConstantStruct::get(" + << typeName << ", " << constName << "_fields);"; + } else if (const ConstantVector *CVec = dyn_cast<ConstantVector>(CV)) { + Out << "std::vector<Constant*> " << constName << "_elems;"; + nl(Out); + unsigned N = CVec->getNumOperands(); + for (unsigned i = 0; i < N; ++i) { + printConstant(CVec->getOperand(i)); + Out << constName << "_elems.push_back(" + << getCppName(CVec->getOperand(i)) << ");"; + nl(Out); + } + Out << "Constant* " << constName << " = ConstantVector::get(" + << typeName << ", " << constName << "_elems);"; + } else if (isa<UndefValue>(CV)) { + Out << "UndefValue* " << constName << " = UndefValue::get(" + << typeName << ");"; + } else if (const ConstantDataSequential *CDS = + dyn_cast<ConstantDataSequential>(CV)) { + if (CDS->isString()) { + Out << "Constant *" << constName << + " = ConstantDataArray::getString(mod->getContext(), \""; + StringRef Str = CDS->getAsString(); + bool nullTerminate = false; + if (Str.back() == 0) { + Str = Str.drop_back(); + nullTerminate = true; + } + printEscapedString(Str); + // Determine if we want null termination or not. + if (nullTerminate) + Out << "\", true);"; + else + Out << "\", false);";// No null terminator + } else { + // TODO: Could generate more efficient code generating CDS calls instead. + Out << "std::vector<Constant*> " << constName << "_elems;"; + nl(Out); + for (unsigned i = 0; i != CDS->getNumElements(); ++i) { + Constant *Elt = CDS->getElementAsConstant(i); + printConstant(Elt); + Out << constName << "_elems.push_back(" << getCppName(Elt) << ");"; + nl(Out); + } + Out << "Constant* " << constName; + + if (isa<ArrayType>(CDS->getType())) + Out << " = ConstantArray::get("; + else + Out << " = ConstantVector::get("; + Out << typeName << ", " << constName << "_elems);"; + } + } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) { + if (CE->getOpcode() == Instruction::GetElementPtr) { + Out << "std::vector<Constant*> " << constName << "_indices;"; + nl(Out); + printConstant(CE->getOperand(0)); + for (unsigned i = 1; i < CE->getNumOperands(); ++i ) { + printConstant(CE->getOperand(i)); + Out << constName << "_indices.push_back(" + << getCppName(CE->getOperand(i)) << ");"; + nl(Out); + } + Out << "Constant* " << constName + << " = ConstantExpr::getGetElementPtr(" + << getCppName(CE->getOperand(0)) << ", " + << constName << "_indices);"; + } else if (CE->isCast()) { + printConstant(CE->getOperand(0)); + Out << "Constant* " << constName << " = ConstantExpr::getCast("; + switch (CE->getOpcode()) { + default: llvm_unreachable("Invalid cast opcode"); + case Instruction::Trunc: Out << "Instruction::Trunc"; break; + case Instruction::ZExt: Out << "Instruction::ZExt"; break; + case Instruction::SExt: Out << "Instruction::SExt"; break; + case Instruction::FPTrunc: Out << "Instruction::FPTrunc"; break; + case Instruction::FPExt: Out << "Instruction::FPExt"; break; + case Instruction::FPToUI: Out << "Instruction::FPToUI"; break; + case Instruction::FPToSI: Out << "Instruction::FPToSI"; break; + case Instruction::UIToFP: Out << "Instruction::UIToFP"; break; + case Instruction::SIToFP: Out << "Instruction::SIToFP"; break; + case Instruction::PtrToInt: Out << "Instruction::PtrToInt"; break; + case Instruction::IntToPtr: Out << "Instruction::IntToPtr"; break; + case Instruction::BitCast: Out << "Instruction::BitCast"; break; + } + Out << ", " << getCppName(CE->getOperand(0)) << ", " + << getCppName(CE->getType()) << ");"; + } else { + unsigned N = CE->getNumOperands(); + for (unsigned i = 0; i < N; ++i ) { + printConstant(CE->getOperand(i)); + } + Out << "Constant* " << constName << " = ConstantExpr::"; + switch (CE->getOpcode()) { + case Instruction::Add: Out << "getAdd("; break; + case Instruction::FAdd: Out << "getFAdd("; break; + case Instruction::Sub: Out << "getSub("; break; + case Instruction::FSub: Out << "getFSub("; break; + case Instruction::Mul: Out << "getMul("; break; + case Instruction::FMul: Out << "getFMul("; break; + case Instruction::UDiv: Out << "getUDiv("; break; + case Instruction::SDiv: Out << "getSDiv("; break; + case Instruction::FDiv: Out << "getFDiv("; break; + case Instruction::URem: Out << "getURem("; break; + case Instruction::SRem: Out << "getSRem("; break; + case Instruction::FRem: Out << "getFRem("; break; + case Instruction::And: Out << "getAnd("; break; + case Instruction::Or: Out << "getOr("; break; + case Instruction::Xor: Out << "getXor("; break; + case Instruction::ICmp: + Out << "getICmp(ICmpInst::ICMP_"; + switch (CE->getPredicate()) { + case ICmpInst::ICMP_EQ: Out << "EQ"; break; + case ICmpInst::ICMP_NE: Out << "NE"; break; + case ICmpInst::ICMP_SLT: Out << "SLT"; break; + case ICmpInst::ICMP_ULT: Out << "ULT"; break; + case ICmpInst::ICMP_SGT: Out << "SGT"; break; + case ICmpInst::ICMP_UGT: Out << "UGT"; break; + case ICmpInst::ICMP_SLE: Out << "SLE"; break; + case ICmpInst::ICMP_ULE: Out << "ULE"; break; + case ICmpInst::ICMP_SGE: Out << "SGE"; break; + case ICmpInst::ICMP_UGE: Out << "UGE"; break; + default: error("Invalid ICmp Predicate"); + } + break; + case Instruction::FCmp: + Out << "getFCmp(FCmpInst::FCMP_"; + switch (CE->getPredicate()) { + case FCmpInst::FCMP_FALSE: Out << "FALSE"; break; + case FCmpInst::FCMP_ORD: Out << "ORD"; break; + case FCmpInst::FCMP_UNO: Out << "UNO"; break; + case FCmpInst::FCMP_OEQ: Out << "OEQ"; break; + case FCmpInst::FCMP_UEQ: Out << "UEQ"; break; + case FCmpInst::FCMP_ONE: Out << "ONE"; break; + case FCmpInst::FCMP_UNE: Out << "UNE"; break; + case FCmpInst::FCMP_OLT: Out << "OLT"; break; + case FCmpInst::FCMP_ULT: Out << "ULT"; break; + case FCmpInst::FCMP_OGT: Out << "OGT"; break; + case FCmpInst::FCMP_UGT: Out << "UGT"; break; + case FCmpInst::FCMP_OLE: Out << "OLE"; break; + case FCmpInst::FCMP_ULE: Out << "ULE"; break; + case FCmpInst::FCMP_OGE: Out << "OGE"; break; + case FCmpInst::FCMP_UGE: Out << "UGE"; break; + case FCmpInst::FCMP_TRUE: Out << "TRUE"; break; + default: error("Invalid FCmp Predicate"); + } + break; + case Instruction::Shl: Out << "getShl("; break; + case Instruction::LShr: Out << "getLShr("; break; + case Instruction::AShr: Out << "getAShr("; break; + case Instruction::Select: Out << "getSelect("; break; + case Instruction::ExtractElement: Out << "getExtractElement("; break; + case Instruction::InsertElement: Out << "getInsertElement("; break; + case Instruction::ShuffleVector: Out << "getShuffleVector("; break; + default: + error("Invalid constant expression"); + break; + } + Out << getCppName(CE->getOperand(0)); + for (unsigned i = 1; i < CE->getNumOperands(); ++i) + Out << ", " << getCppName(CE->getOperand(i)); + Out << ");"; + } + } else if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) { + Out << "Constant* " << constName << " = "; + Out << "BlockAddress::get(" << getOpName(BA->getBasicBlock()) << ");"; + } else { + error("Bad Constant"); + Out << "Constant* " << constName << " = 0; "; + } + nl(Out); +} + +void CppWriter::printConstants(const Module* M) { + // Traverse all the global variables looking for constant initializers + for (Module::const_global_iterator I = TheModule->global_begin(), + E = TheModule->global_end(); I != E; ++I) + if (I->hasInitializer()) + printConstant(I->getInitializer()); + + // Traverse the LLVM functions looking for constants + for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end(); + FI != FE; ++FI) { + // Add all of the basic blocks and instructions + for (Function::const_iterator BB = FI->begin(), + E = FI->end(); BB != E; ++BB) { + for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E; + ++I) { + for (unsigned i = 0; i < I->getNumOperands(); ++i) { + if (Constant* C = dyn_cast<Constant>(I->getOperand(i))) { + printConstant(C); + } + } + } + } + } +} + +void CppWriter::printVariableUses(const GlobalVariable *GV) { + nl(Out) << "// Type Definitions"; + nl(Out); + printType(GV->getType()); + if (GV->hasInitializer()) { + const Constant *Init = GV->getInitializer(); + printType(Init->getType()); + if (const Function *F = dyn_cast<Function>(Init)) { + nl(Out)<< "/ Function Declarations"; nl(Out); + printFunctionHead(F); + } else if (const GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) { + nl(Out) << "// Global Variable Declarations"; nl(Out); + printVariableHead(gv); + + nl(Out) << "// Global Variable Definitions"; nl(Out); + printVariableBody(gv); + } else { + nl(Out) << "// Constant Definitions"; nl(Out); + printConstant(Init); + } + } +} + +void CppWriter::printVariableHead(const GlobalVariable *GV) { + nl(Out) << "GlobalVariable* " << getCppName(GV); + if (is_inline) { + Out << " = mod->getGlobalVariable(mod->getContext(), "; + printEscapedString(GV->getName()); + Out << ", " << getCppName(GV->getType()->getElementType()) << ",true)"; + nl(Out) << "if (!" << getCppName(GV) << ") {"; + in(); nl(Out) << getCppName(GV); + } + Out << " = new GlobalVariable(/*Module=*/*mod, "; + nl(Out) << "/*Type=*/"; + printCppName(GV->getType()->getElementType()); + Out << ","; + nl(Out) << "/*isConstant=*/" << (GV->isConstant()?"true":"false"); + Out << ","; + nl(Out) << "/*Linkage=*/"; + printLinkageType(GV->getLinkage()); + Out << ","; + nl(Out) << "/*Initializer=*/0, "; + if (GV->hasInitializer()) { + Out << "// has initializer, specified below"; + } + nl(Out) << "/*Name=*/\""; + printEscapedString(GV->getName()); + Out << "\");"; + nl(Out); + + if (GV->hasSection()) { + printCppName(GV); + Out << "->setSection(\""; + printEscapedString(GV->getSection()); + Out << "\");"; + nl(Out); + } + if (GV->getAlignment()) { + printCppName(GV); + Out << "->setAlignment(" << utostr(GV->getAlignment()) << ");"; + nl(Out); + } + if (GV->getVisibility() != GlobalValue::DefaultVisibility) { + printCppName(GV); + Out << "->setVisibility("; + printVisibilityType(GV->getVisibility()); + Out << ");"; + nl(Out); + } + if (GV->isThreadLocal()) { + printCppName(GV); + Out << "->setThreadLocalMode("; + printThreadLocalMode(GV->getThreadLocalMode()); + Out << ");"; + nl(Out); + } + if (is_inline) { + out(); Out << "}"; nl(Out); + } +} + +void CppWriter::printVariableBody(const GlobalVariable *GV) { + if (GV->hasInitializer()) { + printCppName(GV); + Out << "->setInitializer("; + Out << getCppName(GV->getInitializer()) << ");"; + nl(Out); + } +} + +std::string CppWriter::getOpName(const Value* V) { + if (!isa<Instruction>(V) || DefinedValues.find(V) != DefinedValues.end()) + return getCppName(V); + + // See if its alread in the map of forward references, if so just return the + // name we already set up for it + ForwardRefMap::const_iterator I = ForwardRefs.find(V); + if (I != ForwardRefs.end()) + return I->second; + + // This is a new forward reference. Generate a unique name for it + std::string result(std::string("fwdref_") + utostr(uniqueNum++)); + + // Yes, this is a hack. An Argument is the smallest instantiable value that + // we can make as a placeholder for the real value. We'll replace these + // Argument instances later. + Out << "Argument* " << result << " = new Argument(" + << getCppName(V->getType()) << ");"; + nl(Out); + ForwardRefs[V] = result; + return result; +} + +static StringRef ConvertAtomicOrdering(AtomicOrdering Ordering) { + switch (Ordering) { + case NotAtomic: return "NotAtomic"; + case Unordered: return "Unordered"; + case Monotonic: return "Monotonic"; + case Acquire: return "Acquire"; + case Release: return "Release"; + case AcquireRelease: return "AcquireRelease"; + case SequentiallyConsistent: return "SequentiallyConsistent"; + } + llvm_unreachable("Unknown ordering"); +} + +static StringRef ConvertAtomicSynchScope(SynchronizationScope SynchScope) { + switch (SynchScope) { + case SingleThread: return "SingleThread"; + case CrossThread: return "CrossThread"; + } + llvm_unreachable("Unknown synch scope"); +} + +// printInstruction - This member is called for each Instruction in a function. +void CppWriter::printInstruction(const Instruction *I, + const std::string& bbname) { + std::string iName(getCppName(I)); + + // Before we emit this instruction, we need to take care of generating any + // forward references. So, we get the names of all the operands in advance + const unsigned Ops(I->getNumOperands()); + std::string* opNames = new std::string[Ops]; + for (unsigned i = 0; i < Ops; i++) + opNames[i] = getOpName(I->getOperand(i)); + + switch (I->getOpcode()) { + default: + error("Invalid instruction"); + break; + + case Instruction::Ret: { + const ReturnInst* ret = cast<ReturnInst>(I); + Out << "ReturnInst::Create(mod->getContext(), " + << (ret->getReturnValue() ? opNames[0] + ", " : "") << bbname << ");"; + break; + } + case Instruction::Br: { + const BranchInst* br = cast<BranchInst>(I); + Out << "BranchInst::Create(" ; + if (br->getNumOperands() == 3) { + Out << opNames[2] << ", " + << opNames[1] << ", " + << opNames[0] << ", "; + + } else if (br->getNumOperands() == 1) { + Out << opNames[0] << ", "; + } else { + error("Branch with 2 operands?"); + } + Out << bbname << ");"; + break; + } + case Instruction::Switch: { + const SwitchInst *SI = cast<SwitchInst>(I); + Out << "SwitchInst* " << iName << " = SwitchInst::Create(" + << getOpName(SI->getCondition()) << ", " + << getOpName(SI->getDefaultDest()) << ", " + << SI->getNumCases() << ", " << bbname << ");"; + nl(Out); + for (SwitchInst::ConstCaseIt i = SI->case_begin(), e = SI->case_end(); + i != e; ++i) { + const ConstantInt* CaseVal = i.getCaseValue(); + const BasicBlock *BB = i.getCaseSuccessor(); + Out << iName << "->addCase(" + << getOpName(CaseVal) << ", " + << getOpName(BB) << ");"; + nl(Out); + } + break; + } + case Instruction::IndirectBr: { + const IndirectBrInst *IBI = cast<IndirectBrInst>(I); + Out << "IndirectBrInst *" << iName << " = IndirectBrInst::Create(" + << opNames[0] << ", " << IBI->getNumDestinations() << ");"; + nl(Out); + for (unsigned i = 1; i != IBI->getNumOperands(); ++i) { + Out << iName << "->addDestination(" << opNames[i] << ");"; + nl(Out); + } + break; + } + case Instruction::Resume: { + Out << "ResumeInst::Create(" << opNames[0] << ", " << bbname << ");"; + break; + } + case Instruction::Invoke: { + const InvokeInst* inv = cast<InvokeInst>(I); + Out << "std::vector<Value*> " << iName << "_params;"; + nl(Out); + for (unsigned i = 0; i < inv->getNumArgOperands(); ++i) { + Out << iName << "_params.push_back(" + << getOpName(inv->getArgOperand(i)) << ");"; + nl(Out); + } + // FIXME: This shouldn't use magic numbers -3, -2, and -1. + Out << "InvokeInst *" << iName << " = InvokeInst::Create(" + << getOpName(inv->getCalledValue()) << ", " + << getOpName(inv->getNormalDest()) << ", " + << getOpName(inv->getUnwindDest()) << ", " + << iName << "_params, \""; + printEscapedString(inv->getName()); + Out << "\", " << bbname << ");"; + nl(Out) << iName << "->setCallingConv("; + printCallingConv(inv->getCallingConv()); + Out << ");"; + printAttributes(inv->getAttributes(), iName); + Out << iName << "->setAttributes(" << iName << "_PAL);"; + nl(Out); + break; + } + case Instruction::Unreachable: { + Out << "new UnreachableInst(" + << "mod->getContext(), " + << bbname << ");"; + break; + } + case Instruction::Add: + case Instruction::FAdd: + case Instruction::Sub: + case Instruction::FSub: + case Instruction::Mul: + case Instruction::FMul: + case Instruction::UDiv: + case Instruction::SDiv: + case Instruction::FDiv: + case Instruction::URem: + case Instruction::SRem: + case Instruction::FRem: + case Instruction::And: + case Instruction::Or: + case Instruction::Xor: + case Instruction::Shl: + case Instruction::LShr: + case Instruction::AShr:{ + Out << "BinaryOperator* " << iName << " = BinaryOperator::Create("; + switch (I->getOpcode()) { + case Instruction::Add: Out << "Instruction::Add"; break; + case Instruction::FAdd: Out << "Instruction::FAdd"; break; + case Instruction::Sub: Out << "Instruction::Sub"; break; + case Instruction::FSub: Out << "Instruction::FSub"; break; + case Instruction::Mul: Out << "Instruction::Mul"; break; + case Instruction::FMul: Out << "Instruction::FMul"; break; + case Instruction::UDiv:Out << "Instruction::UDiv"; break; + case Instruction::SDiv:Out << "Instruction::SDiv"; break; + case Instruction::FDiv:Out << "Instruction::FDiv"; break; + case Instruction::URem:Out << "Instruction::URem"; break; + case Instruction::SRem:Out << "Instruction::SRem"; break; + case Instruction::FRem:Out << "Instruction::FRem"; break; + case Instruction::And: Out << "Instruction::And"; break; + case Instruction::Or: Out << "Instruction::Or"; break; + case Instruction::Xor: Out << "Instruction::Xor"; break; + case Instruction::Shl: Out << "Instruction::Shl"; break; + case Instruction::LShr:Out << "Instruction::LShr"; break; + case Instruction::AShr:Out << "Instruction::AShr"; break; + default: Out << "Instruction::BadOpCode"; break; + } + Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; + printEscapedString(I->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::FCmp: { + Out << "FCmpInst* " << iName << " = new FCmpInst(*" << bbname << ", "; + switch (cast<FCmpInst>(I)->getPredicate()) { + case FCmpInst::FCMP_FALSE: Out << "FCmpInst::FCMP_FALSE"; break; + case FCmpInst::FCMP_OEQ : Out << "FCmpInst::FCMP_OEQ"; break; + case FCmpInst::FCMP_OGT : Out << "FCmpInst::FCMP_OGT"; break; + case FCmpInst::FCMP_OGE : Out << "FCmpInst::FCMP_OGE"; break; + case FCmpInst::FCMP_OLT : Out << "FCmpInst::FCMP_OLT"; break; + case FCmpInst::FCMP_OLE : Out << "FCmpInst::FCMP_OLE"; break; + case FCmpInst::FCMP_ONE : Out << "FCmpInst::FCMP_ONE"; break; + case FCmpInst::FCMP_ORD : Out << "FCmpInst::FCMP_ORD"; break; + case FCmpInst::FCMP_UNO : Out << "FCmpInst::FCMP_UNO"; break; + case FCmpInst::FCMP_UEQ : Out << "FCmpInst::FCMP_UEQ"; break; + case FCmpInst::FCMP_UGT : Out << "FCmpInst::FCMP_UGT"; break; + case FCmpInst::FCMP_UGE : Out << "FCmpInst::FCMP_UGE"; break; + case FCmpInst::FCMP_ULT : Out << "FCmpInst::FCMP_ULT"; break; + case FCmpInst::FCMP_ULE : Out << "FCmpInst::FCMP_ULE"; break; + case FCmpInst::FCMP_UNE : Out << "FCmpInst::FCMP_UNE"; break; + case FCmpInst::FCMP_TRUE : Out << "FCmpInst::FCMP_TRUE"; break; + default: Out << "FCmpInst::BAD_ICMP_PREDICATE"; break; + } + Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; + printEscapedString(I->getName()); + Out << "\");"; + break; + } + case Instruction::ICmp: { + Out << "ICmpInst* " << iName << " = new ICmpInst(*" << bbname << ", "; + switch (cast<ICmpInst>(I)->getPredicate()) { + case ICmpInst::ICMP_EQ: Out << "ICmpInst::ICMP_EQ"; break; + case ICmpInst::ICMP_NE: Out << "ICmpInst::ICMP_NE"; break; + case ICmpInst::ICMP_ULE: Out << "ICmpInst::ICMP_ULE"; break; + case ICmpInst::ICMP_SLE: Out << "ICmpInst::ICMP_SLE"; break; + case ICmpInst::ICMP_UGE: Out << "ICmpInst::ICMP_UGE"; break; + case ICmpInst::ICMP_SGE: Out << "ICmpInst::ICMP_SGE"; break; + case ICmpInst::ICMP_ULT: Out << "ICmpInst::ICMP_ULT"; break; + case ICmpInst::ICMP_SLT: Out << "ICmpInst::ICMP_SLT"; break; + case ICmpInst::ICMP_UGT: Out << "ICmpInst::ICMP_UGT"; break; + case ICmpInst::ICMP_SGT: Out << "ICmpInst::ICMP_SGT"; break; + default: Out << "ICmpInst::BAD_ICMP_PREDICATE"; break; + } + Out << ", " << opNames[0] << ", " << opNames[1] << ", \""; + printEscapedString(I->getName()); + Out << "\");"; + break; + } + case Instruction::Alloca: { + const AllocaInst* allocaI = cast<AllocaInst>(I); + Out << "AllocaInst* " << iName << " = new AllocaInst(" + << getCppName(allocaI->getAllocatedType()) << ", "; + if (allocaI->isArrayAllocation()) + Out << opNames[0] << ", "; + Out << "\""; + printEscapedString(allocaI->getName()); + Out << "\", " << bbname << ");"; + if (allocaI->getAlignment()) + nl(Out) << iName << "->setAlignment(" + << allocaI->getAlignment() << ");"; + break; + } + case Instruction::Load: { + const LoadInst* load = cast<LoadInst>(I); + Out << "LoadInst* " << iName << " = new LoadInst(" + << opNames[0] << ", \""; + printEscapedString(load->getName()); + Out << "\", " << (load->isVolatile() ? "true" : "false" ) + << ", " << bbname << ");"; + if (load->getAlignment()) + nl(Out) << iName << "->setAlignment(" + << load->getAlignment() << ");"; + if (load->isAtomic()) { + StringRef Ordering = ConvertAtomicOrdering(load->getOrdering()); + StringRef CrossThread = ConvertAtomicSynchScope(load->getSynchScope()); + nl(Out) << iName << "->setAtomic(" + << Ordering << ", " << CrossThread << ");"; + } + break; + } + case Instruction::Store: { + const StoreInst* store = cast<StoreInst>(I); + Out << "StoreInst* " << iName << " = new StoreInst(" + << opNames[0] << ", " + << opNames[1] << ", " + << (store->isVolatile() ? "true" : "false") + << ", " << bbname << ");"; + if (store->getAlignment()) + nl(Out) << iName << "->setAlignment(" + << store->getAlignment() << ");"; + if (store->isAtomic()) { + StringRef Ordering = ConvertAtomicOrdering(store->getOrdering()); + StringRef CrossThread = ConvertAtomicSynchScope(store->getSynchScope()); + nl(Out) << iName << "->setAtomic(" + << Ordering << ", " << CrossThread << ");"; + } + break; + } + case Instruction::GetElementPtr: { + const GetElementPtrInst* gep = cast<GetElementPtrInst>(I); + if (gep->getNumOperands() <= 2) { + Out << "GetElementPtrInst* " << iName << " = GetElementPtrInst::Create(" + << opNames[0]; + if (gep->getNumOperands() == 2) + Out << ", " << opNames[1]; + } else { + Out << "std::vector<Value*> " << iName << "_indices;"; + nl(Out); + for (unsigned i = 1; i < gep->getNumOperands(); ++i ) { + Out << iName << "_indices.push_back(" + << opNames[i] << ");"; + nl(Out); + } + Out << "Instruction* " << iName << " = GetElementPtrInst::Create(" + << opNames[0] << ", " << iName << "_indices"; + } + Out << ", \""; + printEscapedString(gep->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::PHI: { + const PHINode* phi = cast<PHINode>(I); + + Out << "PHINode* " << iName << " = PHINode::Create(" + << getCppName(phi->getType()) << ", " + << phi->getNumIncomingValues() << ", \""; + printEscapedString(phi->getName()); + Out << "\", " << bbname << ");"; + nl(Out); + for (unsigned i = 0; i < phi->getNumIncomingValues(); ++i) { + Out << iName << "->addIncoming(" + << opNames[PHINode::getOperandNumForIncomingValue(i)] << ", " + << getOpName(phi->getIncomingBlock(i)) << ");"; + nl(Out); + } + break; + } + case Instruction::Trunc: + case Instruction::ZExt: + case Instruction::SExt: + case Instruction::FPTrunc: + case Instruction::FPExt: + case Instruction::FPToUI: + case Instruction::FPToSI: + case Instruction::UIToFP: + case Instruction::SIToFP: + case Instruction::PtrToInt: + case Instruction::IntToPtr: + case Instruction::BitCast: { + const CastInst* cst = cast<CastInst>(I); + Out << "CastInst* " << iName << " = new "; + switch (I->getOpcode()) { + case Instruction::Trunc: Out << "TruncInst"; break; + case Instruction::ZExt: Out << "ZExtInst"; break; + case Instruction::SExt: Out << "SExtInst"; break; + case Instruction::FPTrunc: Out << "FPTruncInst"; break; + case Instruction::FPExt: Out << "FPExtInst"; break; + case Instruction::FPToUI: Out << "FPToUIInst"; break; + case Instruction::FPToSI: Out << "FPToSIInst"; break; + case Instruction::UIToFP: Out << "UIToFPInst"; break; + case Instruction::SIToFP: Out << "SIToFPInst"; break; + case Instruction::PtrToInt: Out << "PtrToIntInst"; break; + case Instruction::IntToPtr: Out << "IntToPtrInst"; break; + case Instruction::BitCast: Out << "BitCastInst"; break; + default: llvm_unreachable("Unreachable"); + } + Out << "(" << opNames[0] << ", " + << getCppName(cst->getType()) << ", \""; + printEscapedString(cst->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::Call: { + const CallInst* call = cast<CallInst>(I); + if (const InlineAsm* ila = dyn_cast<InlineAsm>(call->getCalledValue())) { + Out << "InlineAsm* " << getCppName(ila) << " = InlineAsm::get(" + << getCppName(ila->getFunctionType()) << ", \"" + << ila->getAsmString() << "\", \"" + << ila->getConstraintString() << "\"," + << (ila->hasSideEffects() ? "true" : "false") << ");"; + nl(Out); + } + if (call->getNumArgOperands() > 1) { + Out << "std::vector<Value*> " << iName << "_params;"; + nl(Out); + for (unsigned i = 0; i < call->getNumArgOperands(); ++i) { + Out << iName << "_params.push_back(" << opNames[i] << ");"; + nl(Out); + } + Out << "CallInst* " << iName << " = CallInst::Create(" + << opNames[call->getNumArgOperands()] << ", " + << iName << "_params, \""; + } else if (call->getNumArgOperands() == 1) { + Out << "CallInst* " << iName << " = CallInst::Create(" + << opNames[call->getNumArgOperands()] << ", " << opNames[0] << ", \""; + } else { + Out << "CallInst* " << iName << " = CallInst::Create(" + << opNames[call->getNumArgOperands()] << ", \""; + } + printEscapedString(call->getName()); + Out << "\", " << bbname << ");"; + nl(Out) << iName << "->setCallingConv("; + printCallingConv(call->getCallingConv()); + Out << ");"; + nl(Out) << iName << "->setTailCall(" + << (call->isTailCall() ? "true" : "false"); + Out << ");"; + nl(Out); + printAttributes(call->getAttributes(), iName); + Out << iName << "->setAttributes(" << iName << "_PAL);"; + nl(Out); + break; + } + case Instruction::Select: { + const SelectInst* sel = cast<SelectInst>(I); + Out << "SelectInst* " << getCppName(sel) << " = SelectInst::Create("; + Out << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", \""; + printEscapedString(sel->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::UserOp1: + /// FALL THROUGH + case Instruction::UserOp2: { + /// FIXME: What should be done here? + break; + } + case Instruction::VAArg: { + const VAArgInst* va = cast<VAArgInst>(I); + Out << "VAArgInst* " << getCppName(va) << " = new VAArgInst(" + << opNames[0] << ", " << getCppName(va->getType()) << ", \""; + printEscapedString(va->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::ExtractElement: { + const ExtractElementInst* eei = cast<ExtractElementInst>(I); + Out << "ExtractElementInst* " << getCppName(eei) + << " = new ExtractElementInst(" << opNames[0] + << ", " << opNames[1] << ", \""; + printEscapedString(eei->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::InsertElement: { + const InsertElementInst* iei = cast<InsertElementInst>(I); + Out << "InsertElementInst* " << getCppName(iei) + << " = InsertElementInst::Create(" << opNames[0] + << ", " << opNames[1] << ", " << opNames[2] << ", \""; + printEscapedString(iei->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::ShuffleVector: { + const ShuffleVectorInst* svi = cast<ShuffleVectorInst>(I); + Out << "ShuffleVectorInst* " << getCppName(svi) + << " = new ShuffleVectorInst(" << opNames[0] + << ", " << opNames[1] << ", " << opNames[2] << ", \""; + printEscapedString(svi->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::ExtractValue: { + const ExtractValueInst *evi = cast<ExtractValueInst>(I); + Out << "std::vector<unsigned> " << iName << "_indices;"; + nl(Out); + for (unsigned i = 0; i < evi->getNumIndices(); ++i) { + Out << iName << "_indices.push_back(" + << evi->idx_begin()[i] << ");"; + nl(Out); + } + Out << "ExtractValueInst* " << getCppName(evi) + << " = ExtractValueInst::Create(" << opNames[0] + << ", " + << iName << "_indices, \""; + printEscapedString(evi->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::InsertValue: { + const InsertValueInst *ivi = cast<InsertValueInst>(I); + Out << "std::vector<unsigned> " << iName << "_indices;"; + nl(Out); + for (unsigned i = 0; i < ivi->getNumIndices(); ++i) { + Out << iName << "_indices.push_back(" + << ivi->idx_begin()[i] << ");"; + nl(Out); + } + Out << "InsertValueInst* " << getCppName(ivi) + << " = InsertValueInst::Create(" << opNames[0] + << ", " << opNames[1] << ", " + << iName << "_indices, \""; + printEscapedString(ivi->getName()); + Out << "\", " << bbname << ");"; + break; + } + case Instruction::Fence: { + const FenceInst *fi = cast<FenceInst>(I); + StringRef Ordering = ConvertAtomicOrdering(fi->getOrdering()); + StringRef CrossThread = ConvertAtomicSynchScope(fi->getSynchScope()); + Out << "FenceInst* " << iName + << " = new FenceInst(mod->getContext(), " + << Ordering << ", " << CrossThread << ", " << bbname + << ");"; + break; + } + case Instruction::AtomicCmpXchg: { + const AtomicCmpXchgInst *cxi = cast<AtomicCmpXchgInst>(I); + StringRef Ordering = ConvertAtomicOrdering(cxi->getOrdering()); + StringRef CrossThread = ConvertAtomicSynchScope(cxi->getSynchScope()); + Out << "AtomicCmpXchgInst* " << iName + << " = new AtomicCmpXchgInst(" + << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", " + << Ordering << ", " << CrossThread << ", " << bbname + << ");"; + nl(Out) << iName << "->setName(\""; + printEscapedString(cxi->getName()); + Out << "\");"; + break; + } + case Instruction::AtomicRMW: { + const AtomicRMWInst *rmwi = cast<AtomicRMWInst>(I); + StringRef Ordering = ConvertAtomicOrdering(rmwi->getOrdering()); + StringRef CrossThread = ConvertAtomicSynchScope(rmwi->getSynchScope()); + StringRef Operation; + switch (rmwi->getOperation()) { + case AtomicRMWInst::Xchg: Operation = "AtomicRMWInst::Xchg"; break; + case AtomicRMWInst::Add: Operation = "AtomicRMWInst::Add"; break; + case AtomicRMWInst::Sub: Operation = "AtomicRMWInst::Sub"; break; + case AtomicRMWInst::And: Operation = "AtomicRMWInst::And"; break; + case AtomicRMWInst::Nand: Operation = "AtomicRMWInst::Nand"; break; + case AtomicRMWInst::Or: Operation = "AtomicRMWInst::Or"; break; + case AtomicRMWInst::Xor: Operation = "AtomicRMWInst::Xor"; break; + case AtomicRMWInst::Max: Operation = "AtomicRMWInst::Max"; break; + case AtomicRMWInst::Min: Operation = "AtomicRMWInst::Min"; break; + case AtomicRMWInst::UMax: Operation = "AtomicRMWInst::UMax"; break; + case AtomicRMWInst::UMin: Operation = "AtomicRMWInst::UMin"; break; + case AtomicRMWInst::BAD_BINOP: llvm_unreachable("Bad atomic operation"); + } + Out << "AtomicRMWInst* " << iName + << " = new AtomicRMWInst(" + << Operation << ", " + << opNames[0] << ", " << opNames[1] << ", " + << Ordering << ", " << CrossThread << ", " << bbname + << ");"; + nl(Out) << iName << "->setName(\""; + printEscapedString(rmwi->getName()); + Out << "\");"; + break; + } + case Instruction::LandingPad: { + const LandingPadInst *lpi = cast<LandingPadInst>(I); + Out << "LandingPadInst* " << iName << " = LandingPadInst::Create("; + printCppName(lpi->getType()); + Out << ", " << opNames[0] << ", " << lpi->getNumClauses() << ", \""; + printEscapedString(lpi->getName()); + Out << "\", " << bbname << ");"; + nl(Out) << iName << "->setCleanup(" + << (lpi->isCleanup() ? "true" : "false") + << ");"; + for (unsigned i = 0, e = lpi->getNumClauses(); i != e; ++i) + nl(Out) << iName << "->addClause(" << opNames[i+1] << ");"; + break; + } + } + DefinedValues.insert(I); + nl(Out); + delete [] opNames; +} + +// Print out the types, constants and declarations needed by one function +void CppWriter::printFunctionUses(const Function* F) { + nl(Out) << "// Type Definitions"; nl(Out); + if (!is_inline) { + // Print the function's return type + printType(F->getReturnType()); + + // Print the function's function type + printType(F->getFunctionType()); + + // Print the types of each of the function's arguments + for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); + AI != AE; ++AI) { + printType(AI->getType()); + } + } + + // Print type definitions for every type referenced by an instruction and + // make a note of any global values or constants that are referenced + SmallPtrSet<GlobalValue*,64> gvs; + SmallPtrSet<Constant*,64> consts; + for (Function::const_iterator BB = F->begin(), BE = F->end(); + BB != BE; ++BB){ + for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); + I != E; ++I) { + // Print the type of the instruction itself + printType(I->getType()); + + // Print the type of each of the instruction's operands + for (unsigned i = 0; i < I->getNumOperands(); ++i) { + Value* operand = I->getOperand(i); + printType(operand->getType()); + + // If the operand references a GVal or Constant, make a note of it + if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) { + gvs.insert(GV); + if (GenerationType != GenFunction) + if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) + if (GVar->hasInitializer()) + consts.insert(GVar->getInitializer()); + } else if (Constant* C = dyn_cast<Constant>(operand)) { + consts.insert(C); + for (unsigned j = 0; j < C->getNumOperands(); ++j) { + // If the operand references a GVal or Constant, make a note of it + Value* operand = C->getOperand(j); + printType(operand->getType()); + if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) { + gvs.insert(GV); + if (GenerationType != GenFunction) + if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) + if (GVar->hasInitializer()) + consts.insert(GVar->getInitializer()); + } + } + } + } + } + } + + // Print the function declarations for any functions encountered + nl(Out) << "// Function Declarations"; nl(Out); + for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); + I != E; ++I) { + if (Function* Fun = dyn_cast<Function>(*I)) { + if (!is_inline || Fun != F) + printFunctionHead(Fun); + } + } + + // Print the global variable declarations for any variables encountered + nl(Out) << "// Global Variable Declarations"; nl(Out); + for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); + I != E; ++I) { + if (GlobalVariable* F = dyn_cast<GlobalVariable>(*I)) + printVariableHead(F); + } + + // Print the constants found + nl(Out) << "// Constant Definitions"; nl(Out); + for (SmallPtrSet<Constant*,64>::iterator I = consts.begin(), + E = consts.end(); I != E; ++I) { + printConstant(*I); + } + + // Process the global variables definitions now that all the constants have + // been emitted. These definitions just couple the gvars with their constant + // initializers. + if (GenerationType != GenFunction) { + nl(Out) << "// Global Variable Definitions"; nl(Out); + for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end(); + I != E; ++I) { + if (GlobalVariable* GV = dyn_cast<GlobalVariable>(*I)) + printVariableBody(GV); + } + } +} + +void CppWriter::printFunctionHead(const Function* F) { + nl(Out) << "Function* " << getCppName(F); + Out << " = mod->getFunction(\""; + printEscapedString(F->getName()); + Out << "\");"; + nl(Out) << "if (!" << getCppName(F) << ") {"; + nl(Out) << getCppName(F); + + Out<< " = Function::Create("; + nl(Out,1) << "/*Type=*/" << getCppName(F->getFunctionType()) << ","; + nl(Out) << "/*Linkage=*/"; + printLinkageType(F->getLinkage()); + Out << ","; + nl(Out) << "/*Name=*/\""; + printEscapedString(F->getName()); + Out << "\", mod); " << (F->isDeclaration()? "// (external, no body)" : ""); + nl(Out,-1); + printCppName(F); + Out << "->setCallingConv("; + printCallingConv(F->getCallingConv()); + Out << ");"; + nl(Out); + if (F->hasSection()) { + printCppName(F); + Out << "->setSection(\"" << F->getSection() << "\");"; + nl(Out); + } + if (F->getAlignment()) { + printCppName(F); + Out << "->setAlignment(" << F->getAlignment() << ");"; + nl(Out); + } + if (F->getVisibility() != GlobalValue::DefaultVisibility) { + printCppName(F); + Out << "->setVisibility("; + printVisibilityType(F->getVisibility()); + Out << ");"; + nl(Out); + } + if (F->hasGC()) { + printCppName(F); + Out << "->setGC(\"" << F->getGC() << "\");"; + nl(Out); + } + Out << "}"; + nl(Out); + printAttributes(F->getAttributes(), getCppName(F)); + printCppName(F); + Out << "->setAttributes(" << getCppName(F) << "_PAL);"; + nl(Out); +} + +void CppWriter::printFunctionBody(const Function *F) { + if (F->isDeclaration()) + return; // external functions have no bodies. + + // Clear the DefinedValues and ForwardRefs maps because we can't have + // cross-function forward refs + ForwardRefs.clear(); + DefinedValues.clear(); + + // Create all the argument values + if (!is_inline) { + if (!F->arg_empty()) { + Out << "Function::arg_iterator args = " << getCppName(F) + << "->arg_begin();"; + nl(Out); + } + for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); + AI != AE; ++AI) { + Out << "Value* " << getCppName(AI) << " = args++;"; + nl(Out); + if (AI->hasName()) { + Out << getCppName(AI) << "->setName(\""; + printEscapedString(AI->getName()); + Out << "\");"; + nl(Out); + } + } + } + + // Create all the basic blocks + nl(Out); + for (Function::const_iterator BI = F->begin(), BE = F->end(); + BI != BE; ++BI) { + std::string bbname(getCppName(BI)); + Out << "BasicBlock* " << bbname << + " = BasicBlock::Create(mod->getContext(), \""; + if (BI->hasName()) + printEscapedString(BI->getName()); + Out << "\"," << getCppName(BI->getParent()) << ",0);"; + nl(Out); + } + + // Output all of its basic blocks... for the function + for (Function::const_iterator BI = F->begin(), BE = F->end(); + BI != BE; ++BI) { + std::string bbname(getCppName(BI)); + nl(Out) << "// Block " << BI->getName() << " (" << bbname << ")"; + nl(Out); + + // Output all of the instructions in the basic block... + for (BasicBlock::const_iterator I = BI->begin(), E = BI->end(); + I != E; ++I) { + printInstruction(I,bbname); + } + } + + // Loop over the ForwardRefs and resolve them now that all instructions + // are generated. + if (!ForwardRefs.empty()) { + nl(Out) << "// Resolve Forward References"; + nl(Out); + } + + while (!ForwardRefs.empty()) { + ForwardRefMap::iterator I = ForwardRefs.begin(); + Out << I->second << "->replaceAllUsesWith(" + << getCppName(I->first) << "); delete " << I->second << ";"; + nl(Out); + ForwardRefs.erase(I); + } +} + +void CppWriter::printInline(const std::string& fname, + const std::string& func) { + const Function* F = TheModule->getFunction(func); + if (!F) { + error(std::string("Function '") + func + "' not found in input module"); + return; + } + if (F->isDeclaration()) { + error(std::string("Function '") + func + "' is external!"); + return; + } + nl(Out) << "BasicBlock* " << fname << "(Module* mod, Function *" + << getCppName(F); + unsigned arg_count = 1; + for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end(); + AI != AE; ++AI) { + Out << ", Value* arg_" << arg_count++; + } + Out << ") {"; + nl(Out); + is_inline = true; + printFunctionUses(F); + printFunctionBody(F); + is_inline = false; + Out << "return " << getCppName(F->begin()) << ";"; + nl(Out) << "}"; + nl(Out); +} + +void CppWriter::printModuleBody() { + // Print out all the type definitions + nl(Out) << "// Type Definitions"; nl(Out); + printTypes(TheModule); + + // Functions can call each other and global variables can reference them so + // define all the functions first before emitting their function bodies. + nl(Out) << "// Function Declarations"; nl(Out); + for (Module::const_iterator I = TheModule->begin(), E = TheModule->end(); + I != E; ++I) + printFunctionHead(I); + + // Process the global variables declarations. We can't initialze them until + // after the constants are printed so just print a header for each global + nl(Out) << "// Global Variable Declarations\n"; nl(Out); + for (Module::const_global_iterator I = TheModule->global_begin(), + E = TheModule->global_end(); I != E; ++I) { + printVariableHead(I); + } + + // Print out all the constants definitions. Constants don't recurse except + // through GlobalValues. All GlobalValues have been declared at this point + // so we can proceed to generate the constants. + nl(Out) << "// Constant Definitions"; nl(Out); + printConstants(TheModule); + + // Process the global variables definitions now that all the constants have + // been emitted. These definitions just couple the gvars with their constant + // initializers. + nl(Out) << "// Global Variable Definitions"; nl(Out); + for (Module::const_global_iterator I = TheModule->global_begin(), + E = TheModule->global_end(); I != E; ++I) { + printVariableBody(I); + } + + // Finally, we can safely put out all of the function bodies. + nl(Out) << "// Function Definitions"; nl(Out); + for (Module::const_iterator I = TheModule->begin(), E = TheModule->end(); + I != E; ++I) { + if (!I->isDeclaration()) { + nl(Out) << "// Function: " << I->getName() << " (" << getCppName(I) + << ")"; + nl(Out) << "{"; + nl(Out,1); + printFunctionBody(I); + nl(Out,-1) << "}"; + nl(Out); + } + } +} + +void CppWriter::printProgram(const std::string& fname, + const std::string& mName) { + Out << "#include <llvm/Pass.h>\n"; + Out << "#include <llvm/PassManager.h>\n"; + + Out << "#include <llvm/ADT/SmallVector.h>\n"; + Out << "#include <llvm/Analysis/Verifier.h>\n"; + Out << "#include <llvm/Assembly/PrintModulePass.h>\n"; + Out << "#include <llvm/IR/BasicBlock.h>\n"; + Out << "#include <llvm/IR/CallingConv.h>\n"; + Out << "#include <llvm/IR/Constants.h>\n"; + Out << "#include <llvm/IR/DerivedTypes.h>\n"; + Out << "#include <llvm/IR/Function.h>\n"; + Out << "#include <llvm/IR/GlobalVariable.h>\n"; + Out << "#include <llvm/IR/InlineAsm.h>\n"; + Out << "#include <llvm/IR/Instructions.h>\n"; + Out << "#include <llvm/IR/LLVMContext.h>\n"; + Out << "#include <llvm/IR/Module.h>\n"; + Out << "#include <llvm/Support/FormattedStream.h>\n"; + Out << "#include <llvm/Support/MathExtras.h>\n"; + Out << "#include <algorithm>\n"; + Out << "using namespace llvm;\n\n"; + Out << "Module* " << fname << "();\n\n"; + Out << "int main(int argc, char**argv) {\n"; + Out << " Module* Mod = " << fname << "();\n"; + Out << " verifyModule(*Mod, PrintMessageAction);\n"; + Out << " PassManager PM;\n"; + Out << " PM.add(createPrintModulePass(&outs()));\n"; + Out << " PM.run(*Mod);\n"; + Out << " return 0;\n"; + Out << "}\n\n"; + printModule(fname,mName); +} + +void CppWriter::printModule(const std::string& fname, + const std::string& mName) { + nl(Out) << "Module* " << fname << "() {"; + nl(Out,1) << "// Module Construction"; + nl(Out) << "Module* mod = new Module(\""; + printEscapedString(mName); + Out << "\", getGlobalContext());"; + if (!TheModule->getTargetTriple().empty()) { + nl(Out) << "mod->setDataLayout(\"" << TheModule->getDataLayout() << "\");"; + } + if (!TheModule->getTargetTriple().empty()) { + nl(Out) << "mod->setTargetTriple(\"" << TheModule->getTargetTriple() + << "\");"; + } + + if (!TheModule->getModuleInlineAsm().empty()) { + nl(Out) << "mod->setModuleInlineAsm(\""; + printEscapedString(TheModule->getModuleInlineAsm()); + Out << "\");"; + } + nl(Out); + + printModuleBody(); + nl(Out) << "return mod;"; + nl(Out,-1) << "}"; + nl(Out); +} + +void CppWriter::printContents(const std::string& fname, + const std::string& mName) { + Out << "\nModule* " << fname << "(Module *mod) {\n"; + Out << "\nmod->setModuleIdentifier(\""; + printEscapedString(mName); + Out << "\");\n"; + printModuleBody(); + Out << "\nreturn mod;\n"; + Out << "\n}\n"; +} + +void CppWriter::printFunction(const std::string& fname, + const std::string& funcName) { + const Function* F = TheModule->getFunction(funcName); + if (!F) { + error(std::string("Function '") + funcName + "' not found in input module"); + return; + } + Out << "\nFunction* " << fname << "(Module *mod) {\n"; + printFunctionUses(F); + printFunctionHead(F); + printFunctionBody(F); + Out << "return " << getCppName(F) << ";\n"; + Out << "}\n"; +} + +void CppWriter::printFunctions() { + const Module::FunctionListType &funcs = TheModule->getFunctionList(); + Module::const_iterator I = funcs.begin(); + Module::const_iterator IE = funcs.end(); + + for (; I != IE; ++I) { + const Function &func = *I; + if (!func.isDeclaration()) { + std::string name("define_"); + name += func.getName(); + printFunction(name, func.getName()); + } + } +} + +void CppWriter::printVariable(const std::string& fname, + const std::string& varName) { + const GlobalVariable* GV = TheModule->getNamedGlobal(varName); + + if (!GV) { + error(std::string("Variable '") + varName + "' not found in input module"); + return; + } + Out << "\nGlobalVariable* " << fname << "(Module *mod) {\n"; + printVariableUses(GV); + printVariableHead(GV); + printVariableBody(GV); + Out << "return " << getCppName(GV) << ";\n"; + Out << "}\n"; +} + +void CppWriter::printType(const std::string &fname, + const std::string &typeName) { + Type* Ty = TheModule->getTypeByName(typeName); + if (!Ty) { + error(std::string("Type '") + typeName + "' not found in input module"); + return; + } + Out << "\nType* " << fname << "(Module *mod) {\n"; + printType(Ty); + Out << "return " << getCppName(Ty) << ";\n"; + Out << "}\n"; +} + +bool CppWriter::runOnModule(Module &M) { + TheModule = &M; + + // Emit a header + Out << "// Generated by llvm2cpp - DO NOT MODIFY!\n\n"; + + // Get the name of the function we're supposed to generate + std::string fname = FuncName.getValue(); + + // Get the name of the thing we are to generate + std::string tgtname = NameToGenerate.getValue(); + if (GenerationType == GenModule || + GenerationType == GenContents || + GenerationType == GenProgram || + GenerationType == GenFunctions) { + if (tgtname == "!bad!") { + if (M.getModuleIdentifier() == "-") + tgtname = "<stdin>"; + else + tgtname = M.getModuleIdentifier(); + } + } else if (tgtname == "!bad!") + error("You must use the -for option with -gen-{function,variable,type}"); + + switch (WhatToGenerate(GenerationType)) { + case GenProgram: + if (fname.empty()) + fname = "makeLLVMModule"; + printProgram(fname,tgtname); + break; + case GenModule: + if (fname.empty()) + fname = "makeLLVMModule"; + printModule(fname,tgtname); + break; + case GenContents: + if (fname.empty()) + fname = "makeLLVMModuleContents"; + printContents(fname,tgtname); + break; + case GenFunction: + if (fname.empty()) + fname = "makeLLVMFunction"; + printFunction(fname,tgtname); + break; + case GenFunctions: + printFunctions(); + break; + case GenInline: + if (fname.empty()) + fname = "makeLLVMInline"; + printInline(fname,tgtname); + break; + case GenVariable: + if (fname.empty()) + fname = "makeLLVMVariable"; + printVariable(fname,tgtname); + break; + case GenType: + if (fname.empty()) + fname = "makeLLVMType"; + printType(fname,tgtname); + break; + } + + return false; +} + +char CppWriter::ID = 0; + +//===----------------------------------------------------------------------===// +// External Interface declaration +//===----------------------------------------------------------------------===// + +bool CPPTargetMachine::addPassesToEmitFile(PassManagerBase &PM, + formatted_raw_ostream &o, + CodeGenFileType FileType, + bool DisableVerify, + AnalysisID StartAfter, + AnalysisID StopAfter) { + if (FileType != TargetMachine::CGFT_AssemblyFile) return true; + PM.add(new CppWriter(o)); + return false; +} |