llvm-6502/lib/Target/TargetMachineC.cpp

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6.9 KiB
C++

//===-- TargetMachine.cpp -------------------------------------------------===//
//
// 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 LLVM-C part of TargetMachine.h
//
//===----------------------------------------------------------------------===//
#include "llvm-c/TargetMachine.h"
#include "llvm-c/Core.h"
#include "llvm-c/Target.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Module.h"
#include "llvm/PassManager.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include <cassert>
#include <cstdlib>
#include <cstring>
using namespace llvm;
inline TargetMachine *unwrap(LLVMTargetMachineRef P) {
return reinterpret_cast<TargetMachine*>(P);
}
inline Target *unwrap(LLVMTargetRef P) {
return reinterpret_cast<Target*>(P);
}
inline LLVMTargetMachineRef wrap(const TargetMachine *P) {
return
reinterpret_cast<LLVMTargetMachineRef>(const_cast<TargetMachine*>(P));
}
inline LLVMTargetRef wrap(const Target * P) {
return reinterpret_cast<LLVMTargetRef>(const_cast<Target*>(P));
}
LLVMTargetRef LLVMGetFirstTarget() {
if(TargetRegistry::begin() == TargetRegistry::end()) {
return nullptr;
}
const Target* target = &*TargetRegistry::begin();
return wrap(target);
}
LLVMTargetRef LLVMGetNextTarget(LLVMTargetRef T) {
return wrap(unwrap(T)->getNext());
}
LLVMTargetRef LLVMGetTargetFromName(const char *Name) {
StringRef NameRef = Name;
for (TargetRegistry::iterator IT = TargetRegistry::begin(),
IE = TargetRegistry::end(); IT != IE; ++IT) {
if (IT->getName() == NameRef)
return wrap(&*IT);
}
return nullptr;
}
LLVMBool LLVMGetTargetFromTriple(const char* TripleStr, LLVMTargetRef *T,
char **ErrorMessage) {
std::string Error;
*T = wrap(TargetRegistry::lookupTarget(TripleStr, Error));
if (!*T) {
if (ErrorMessage)
*ErrorMessage = strdup(Error.c_str());
return 1;
}
return 0;
}
const char * LLVMGetTargetName(LLVMTargetRef T) {
return unwrap(T)->getName();
}
const char * LLVMGetTargetDescription(LLVMTargetRef T) {
return unwrap(T)->getShortDescription();
}
LLVMBool LLVMTargetHasJIT(LLVMTargetRef T) {
return unwrap(T)->hasJIT();
}
LLVMBool LLVMTargetHasTargetMachine(LLVMTargetRef T) {
return unwrap(T)->hasTargetMachine();
}
LLVMBool LLVMTargetHasAsmBackend(LLVMTargetRef T) {
return unwrap(T)->hasMCAsmBackend();
}
LLVMTargetMachineRef LLVMCreateTargetMachine(LLVMTargetRef T,
const char* Triple, const char* CPU, const char* Features,
LLVMCodeGenOptLevel Level, LLVMRelocMode Reloc,
LLVMCodeModel CodeModel) {
Reloc::Model RM;
switch (Reloc){
case LLVMRelocStatic:
RM = Reloc::Static;
break;
case LLVMRelocPIC:
RM = Reloc::PIC_;
break;
case LLVMRelocDynamicNoPic:
RM = Reloc::DynamicNoPIC;
break;
default:
RM = Reloc::Default;
break;
}
CodeModel::Model CM = unwrap(CodeModel);
CodeGenOpt::Level OL;
switch (Level) {
case LLVMCodeGenLevelNone:
OL = CodeGenOpt::None;
break;
case LLVMCodeGenLevelLess:
OL = CodeGenOpt::Less;
break;
case LLVMCodeGenLevelAggressive:
OL = CodeGenOpt::Aggressive;
break;
default:
OL = CodeGenOpt::Default;
break;
}
TargetOptions opt;
return wrap(unwrap(T)->createTargetMachine(Triple, CPU, Features, opt, RM,
CM, OL));
}
void LLVMDisposeTargetMachine(LLVMTargetMachineRef T) {
delete unwrap(T);
}
LLVMTargetRef LLVMGetTargetMachineTarget(LLVMTargetMachineRef T) {
const Target* target = &(unwrap(T)->getTarget());
return wrap(target);
}
char* LLVMGetTargetMachineTriple(LLVMTargetMachineRef T) {
std::string StringRep = unwrap(T)->getTargetTriple();
return strdup(StringRep.c_str());
}
char* LLVMGetTargetMachineCPU(LLVMTargetMachineRef T) {
std::string StringRep = unwrap(T)->getTargetCPU();
return strdup(StringRep.c_str());
}
char* LLVMGetTargetMachineFeatureString(LLVMTargetMachineRef T) {
std::string StringRep = unwrap(T)->getTargetFeatureString();
return strdup(StringRep.c_str());
}
LLVMTargetDataRef LLVMGetTargetMachineData(LLVMTargetMachineRef T) {
return wrap(unwrap(T)->getDataLayout());
}
void LLVMSetTargetMachineAsmVerbosity(LLVMTargetMachineRef T,
LLVMBool VerboseAsm) {
unwrap(T)->setAsmVerbosityDefault(VerboseAsm);
}
static LLVMBool LLVMTargetMachineEmit(LLVMTargetMachineRef T, LLVMModuleRef M,
formatted_raw_ostream &OS, LLVMCodeGenFileType codegen, char **ErrorMessage) {
TargetMachine* TM = unwrap(T);
Module* Mod = unwrap(M);
PassManager pass;
std::string error;
const DataLayout* td = TM->getDataLayout();
if (!td) {
error = "No DataLayout in TargetMachine";
*ErrorMessage = strdup(error.c_str());
return true;
}
Mod->setDataLayout(td);
pass.add(new DataLayoutPass(Mod));
TargetMachine::CodeGenFileType ft;
switch (codegen) {
case LLVMAssemblyFile:
ft = TargetMachine::CGFT_AssemblyFile;
break;
default:
ft = TargetMachine::CGFT_ObjectFile;
break;
}
if (TM->addPassesToEmitFile(pass, OS, ft)) {
error = "TargetMachine can't emit a file of this type";
*ErrorMessage = strdup(error.c_str());
return true;
}
pass.run(*Mod);
OS.flush();
return false;
}
LLVMBool LLVMTargetMachineEmitToFile(LLVMTargetMachineRef T, LLVMModuleRef M,
char* Filename, LLVMCodeGenFileType codegen, char** ErrorMessage) {
std::string error;
raw_fd_ostream dest(Filename, error, sys::fs::F_None);
if (!error.empty()) {
*ErrorMessage = strdup(error.c_str());
return true;
}
formatted_raw_ostream destf(dest);
bool Result = LLVMTargetMachineEmit(T, M, destf, codegen, ErrorMessage);
dest.flush();
return Result;
}
LLVMBool LLVMTargetMachineEmitToMemoryBuffer(LLVMTargetMachineRef T,
LLVMModuleRef M, LLVMCodeGenFileType codegen, char** ErrorMessage,
LLVMMemoryBufferRef *OutMemBuf) {
std::string CodeString;
raw_string_ostream OStream(CodeString);
formatted_raw_ostream Out(OStream);
bool Result = LLVMTargetMachineEmit(T, M, Out, codegen, ErrorMessage);
OStream.flush();
std::string &Data = OStream.str();
*OutMemBuf = LLVMCreateMemoryBufferWithMemoryRangeCopy(Data.c_str(),
Data.length(), "");
return Result;
}
char *LLVMGetDefaultTargetTriple(void) {
return strdup(sys::getDefaultTargetTriple().c_str());
}
void LLVMAddAnalysisPasses(LLVMTargetMachineRef T, LLVMPassManagerRef PM) {
unwrap(T)->addAnalysisPasses(*unwrap(PM));
}