PPCTargetMachine.cpp [plain text]
#include "PPC.h"
#include "PPCMCAsmInfo.h"
#include "PPCTargetMachine.h"
#include "llvm/PassManager.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegistry.h"
#include "llvm/Support/FormattedStream.h"
using namespace llvm;
static const MCAsmInfo *createMCAsmInfo(const Target &T, StringRef TT) {
Triple TheTriple(TT);
bool isPPC64 = TheTriple.getArch() == Triple::ppc64;
if (TheTriple.getOS() == Triple::Darwin)
return new PPCMCAsmInfoDarwin(isPPC64);
return new PPCLinuxMCAsmInfo(isPPC64);
}
extern "C" void LLVMInitializePowerPCTarget() {
RegisterTargetMachine<PPC32TargetMachine> A(ThePPC32Target);
RegisterTargetMachine<PPC64TargetMachine> B(ThePPC64Target);
RegisterAsmInfoFn C(ThePPC32Target, createMCAsmInfo);
RegisterAsmInfoFn D(ThePPC64Target, createMCAsmInfo);
}
PPCTargetMachine::PPCTargetMachine(const Target &T, const std::string &TT,
const std::string &FS, bool is64Bit)
: LLVMTargetMachine(T, TT),
Subtarget(TT, FS, is64Bit),
DataLayout(Subtarget.getTargetDataString()), InstrInfo(*this),
FrameInfo(*this, is64Bit), JITInfo(*this, is64Bit), TLInfo(*this),
InstrItins(Subtarget.getInstrItineraryData()) {
if (getRelocationModel() == Reloc::Default) {
if (Subtarget.isDarwin())
setRelocationModel(Reloc::DynamicNoPIC);
else
setRelocationModel(Reloc::Static);
}
}
bool PPCTargetMachine::getEnableTailMergeDefault() const { return false; }
PPC32TargetMachine::PPC32TargetMachine(const Target &T, const std::string &TT,
const std::string &FS)
: PPCTargetMachine(T, TT, FS, false) {
}
PPC64TargetMachine::PPC64TargetMachine(const Target &T, const std::string &TT,
const std::string &FS)
: PPCTargetMachine(T, TT, FS, true) {
}
bool PPCTargetMachine::addInstSelector(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
PM.add(createPPCISelDag(*this));
return false;
}
bool PPCTargetMachine::addPreEmitPass(PassManagerBase &PM,
CodeGenOpt::Level OptLevel) {
PM.add(createPPCBranchSelectionPass());
return false;
}
bool PPCTargetMachine::addCodeEmitter(PassManagerBase &PM,
CodeGenOpt::Level OptLevel,
JITCodeEmitter &JCE) {
if (Subtarget.isPPC64()) {
setRelocationModel(Reloc::PIC_);
DisableJumpTables = true;
} else {
setRelocationModel(Reloc::Static);
}
Subtarget.SetJITMode();
PM.add(createPPCJITCodeEmitterPass(*this, JCE));
return false;
}