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//===-- PPCMCTargetDesc.cpp - PowerPC Target Descriptions -----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides PowerPC specific target descriptions.
//
//===----------------------------------------------------------------------===//
#include "PPCMCTargetDesc.h"
#include "InstPrinter/PPCInstPrinter.h"
#include "PPCMCAsmInfo.h"
#include "PPCTargetStreamer.h"
#include "llvm/MC/MCCodeGenInfo.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MachineLocation.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
#define GET_INSTRINFO_MC_DESC
#include "PPCGenInstrInfo.inc"
#define GET_SUBTARGETINFO_MC_DESC
#include "PPCGenSubtargetInfo.inc"
#define GET_REGINFO_MC_DESC
#include "PPCGenRegisterInfo.inc"
using namespace llvm;
// Pin the vtable to this file.
PPCTargetStreamer::~PPCTargetStreamer() {}
static MCInstrInfo *createPPCMCInstrInfo() {
MCInstrInfo *X = new MCInstrInfo();
InitPPCMCInstrInfo(X);
return X;
}
static MCRegisterInfo *createPPCMCRegisterInfo(StringRef TT) {
Triple TheTriple(TT);
bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
TheTriple.getArch() == Triple::ppc64le);
unsigned Flavour = isPPC64 ? 0 : 1;
unsigned RA = isPPC64 ? PPC::LR8 : PPC::LR;
MCRegisterInfo *X = new MCRegisterInfo();
InitPPCMCRegisterInfo(X, RA, Flavour, Flavour);
return X;
}
static MCSubtargetInfo *createPPCMCSubtargetInfo(StringRef TT, StringRef CPU,
StringRef FS) {
MCSubtargetInfo *X = new MCSubtargetInfo();
InitPPCMCSubtargetInfo(X, TT, CPU, FS);
return X;
}
static MCAsmInfo *createPPCMCAsmInfo(const MCRegisterInfo &MRI, StringRef TT) {
Triple TheTriple(TT);
bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
TheTriple.getArch() == Triple::ppc64le);
MCAsmInfo *MAI;
if (TheTriple.isOSDarwin())
MAI = new PPCMCAsmInfoDarwin(isPPC64);
else
MAI = new PPCLinuxMCAsmInfo(isPPC64);
// Initial state of the frame pointer is R1.
unsigned Reg = isPPC64 ? PPC::X1 : PPC::R1;
MCCFIInstruction Inst =
MCCFIInstruction::createDefCfa(0, MRI.getDwarfRegNum(Reg, true), 0);
MAI->addInitialFrameState(Inst);
return MAI;
}
static MCCodeGenInfo *createPPCMCCodeGenInfo(StringRef TT, Reloc::Model RM,
CodeModel::Model CM,
CodeGenOpt::Level OL) {
MCCodeGenInfo *X = new MCCodeGenInfo();
if (RM == Reloc::Default) {
Triple T(TT);
if (T.isOSDarwin())
RM = Reloc::DynamicNoPIC;
else
RM = Reloc::Static;
}
if (CM == CodeModel::Default) {
Triple T(TT);
if (!T.isOSDarwin() &&
(T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le))
CM = CodeModel::Medium;
}
X->InitMCCodeGenInfo(RM, CM, OL);
return X;
}
namespace {
class PPCTargetAsmStreamer : public PPCTargetStreamer {
formatted_raw_ostream &OS;
public:
PPCTargetAsmStreamer(formatted_raw_ostream &OS) : OS(OS) {}
virtual void emitTCEntry(const MCSymbol &S) {
OS << "\t.tc ";
OS << S.getName();
OS << "[TC],";
OS << S.getName();
OS << '\n';
}
};
class PPCTargetELFStreamer : public PPCTargetStreamer {
virtual void emitTCEntry(const MCSymbol &S) {
// Creates a R_PPC64_TOC relocation
Streamer->EmitSymbolValue(&S, 8);
}
};
}
// This is duplicated code. Refactor this.
static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
MCContext &Ctx, MCAsmBackend &MAB,
raw_ostream &OS,
MCCodeEmitter *Emitter,
bool RelaxAll,
bool NoExecStack) {
if (Triple(TT).isOSDarwin())
return createMachOStreamer(Ctx, MAB, OS, Emitter, RelaxAll);
PPCTargetStreamer *S = new PPCTargetELFStreamer();
return createELFStreamer(Ctx, S, MAB, OS, Emitter, RelaxAll, NoExecStack);
}
static MCStreamer *
createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
bool isVerboseAsm, bool useLoc, bool useCFI,
bool useDwarfDirectory, MCInstPrinter *InstPrint,
MCCodeEmitter *CE, MCAsmBackend *TAB, bool ShowInst) {
PPCTargetStreamer *S = new PPCTargetAsmStreamer(OS);
return llvm::createAsmStreamer(Ctx, S, OS, isVerboseAsm, useLoc, useCFI,
useDwarfDirectory, InstPrint, CE, TAB,
ShowInst);
}
static MCInstPrinter *createPPCMCInstPrinter(const Target &T,
unsigned SyntaxVariant,
const MCAsmInfo &MAI,
const MCInstrInfo &MII,
const MCRegisterInfo &MRI,
const MCSubtargetInfo &STI) {
bool isDarwin = Triple(STI.getTargetTriple()).isOSDarwin();
return new PPCInstPrinter(MAI, MII, MRI, isDarwin);
}
extern "C" void LLVMInitializePowerPCTargetMC() {
// Register the MC asm info.
RegisterMCAsmInfoFn C(ThePPC32Target, createPPCMCAsmInfo);
RegisterMCAsmInfoFn D(ThePPC64Target, createPPCMCAsmInfo);
RegisterMCAsmInfoFn E(ThePPC64LETarget, createPPCMCAsmInfo);
// Register the MC codegen info.
TargetRegistry::RegisterMCCodeGenInfo(ThePPC32Target, createPPCMCCodeGenInfo);
TargetRegistry::RegisterMCCodeGenInfo(ThePPC64Target, createPPCMCCodeGenInfo);
TargetRegistry::RegisterMCCodeGenInfo(ThePPC64LETarget,
createPPCMCCodeGenInfo);
// Register the MC instruction info.
TargetRegistry::RegisterMCInstrInfo(ThePPC32Target, createPPCMCInstrInfo);
TargetRegistry::RegisterMCInstrInfo(ThePPC64Target, createPPCMCInstrInfo);
TargetRegistry::RegisterMCInstrInfo(ThePPC64LETarget,
createPPCMCInstrInfo);
// Register the MC register info.
TargetRegistry::RegisterMCRegInfo(ThePPC32Target, createPPCMCRegisterInfo);
TargetRegistry::RegisterMCRegInfo(ThePPC64Target, createPPCMCRegisterInfo);
TargetRegistry::RegisterMCRegInfo(ThePPC64LETarget, createPPCMCRegisterInfo);
// Register the MC subtarget info.
TargetRegistry::RegisterMCSubtargetInfo(ThePPC32Target,
createPPCMCSubtargetInfo);
TargetRegistry::RegisterMCSubtargetInfo(ThePPC64Target,
createPPCMCSubtargetInfo);
TargetRegistry::RegisterMCSubtargetInfo(ThePPC64LETarget,
createPPCMCSubtargetInfo);
// Register the MC Code Emitter
TargetRegistry::RegisterMCCodeEmitter(ThePPC32Target, createPPCMCCodeEmitter);
TargetRegistry::RegisterMCCodeEmitter(ThePPC64Target, createPPCMCCodeEmitter);
TargetRegistry::RegisterMCCodeEmitter(ThePPC64LETarget,
createPPCMCCodeEmitter);
// Register the asm backend.
TargetRegistry::RegisterMCAsmBackend(ThePPC32Target, createPPCAsmBackend);
TargetRegistry::RegisterMCAsmBackend(ThePPC64Target, createPPCAsmBackend);
TargetRegistry::RegisterMCAsmBackend(ThePPC64LETarget, createPPCAsmBackend);
// Register the object streamer.
TargetRegistry::RegisterMCObjectStreamer(ThePPC32Target, createMCStreamer);
TargetRegistry::RegisterMCObjectStreamer(ThePPC64Target, createMCStreamer);
TargetRegistry::RegisterMCObjectStreamer(ThePPC64LETarget, createMCStreamer);
// Register the asm streamer.
TargetRegistry::RegisterAsmStreamer(ThePPC32Target, createMCAsmStreamer);
TargetRegistry::RegisterAsmStreamer(ThePPC64Target, createMCAsmStreamer);
TargetRegistry::RegisterAsmStreamer(ThePPC64LETarget, createMCAsmStreamer);
// Register the MCInstPrinter.
TargetRegistry::RegisterMCInstPrinter(ThePPC32Target, createPPCMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(ThePPC64Target, createPPCMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(ThePPC64LETarget,
createPPCMCInstPrinter);
}
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