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//===-- MipsMCTargetDesc.cpp - Mips 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 Mips specific target descriptions.
//
//===----------------------------------------------------------------------===//
#include "MipsMCAsmInfo.h"
#include "MipsMCTargetDesc.h"
#include "InstPrinter/MipsInstPrinter.h"
#include "llvm/MC/MachineLocation.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/Support/ErrorHandling.h"
#include "llvm/Support/TargetRegistry.h"
#define GET_INSTRINFO_MC_DESC
#include "MipsGenInstrInfo.inc"
#define GET_SUBTARGETINFO_MC_DESC
#include "MipsGenSubtargetInfo.inc"
#define GET_REGINFO_MC_DESC
#include "MipsGenRegisterInfo.inc"
using namespace llvm;
static std::string ParseMipsTriple(StringRef TT, StringRef CPU) {
std::string MipsArchFeature;
size_t DashPosition = 0;
StringRef TheTriple;
// Let's see if there is a dash, like mips-unknown-linux.
DashPosition = TT.find('-');
if (DashPosition == StringRef::npos) {
// No dash, we check the string size.
TheTriple = TT.substr(0);
} else {
// We are only interested in substring before dash.
TheTriple = TT.substr(0,DashPosition);
}
if (TheTriple == "mips" || TheTriple == "mipsel") {
if (CPU.empty() || CPU == "mips32") {
MipsArchFeature = "+mips32";
} else if (CPU == "mips32r2") {
MipsArchFeature = "+mips32r2";
}
} else {
if (CPU.empty() || CPU == "mips64") {
MipsArchFeature = "+mips64";
} else if (CPU == "mips64r2") {
MipsArchFeature = "+mips64r2";
}
}
return MipsArchFeature;
}
static MCInstrInfo *createMipsMCInstrInfo() {
MCInstrInfo *X = new MCInstrInfo();
InitMipsMCInstrInfo(X);
return X;
}
static MCRegisterInfo *createMipsMCRegisterInfo(StringRef TT) {
MCRegisterInfo *X = new MCRegisterInfo();
InitMipsMCRegisterInfo(X, Mips::RA);
return X;
}
static MCSubtargetInfo *createMipsMCSubtargetInfo(StringRef TT, StringRef CPU,
StringRef FS) {
std::string ArchFS = ParseMipsTriple(TT,CPU);
if (!FS.empty()) {
if (!ArchFS.empty())
ArchFS = ArchFS + "," + FS.str();
else
ArchFS = FS;
}
MCSubtargetInfo *X = new MCSubtargetInfo();
InitMipsMCSubtargetInfo(X, TT, CPU, ArchFS);
return X;
}
static MCAsmInfo *createMipsMCAsmInfo(const Target &T, StringRef TT) {
MCAsmInfo *MAI = new MipsMCAsmInfo(T, TT);
MachineLocation Dst(MachineLocation::VirtualFP);
MachineLocation Src(Mips::SP, 0);
MAI->addInitialFrameState(0, Dst, Src);
return MAI;
}
static MCCodeGenInfo *createMipsMCCodeGenInfo(StringRef TT, Reloc::Model RM,
CodeModel::Model CM,
CodeGenOpt::Level OL) {
MCCodeGenInfo *X = new MCCodeGenInfo();
if (CM == CodeModel::JITDefault)
RM = Reloc::Static;
else if (RM == Reloc::Default)
RM = Reloc::PIC_;
X->InitMCCodeGenInfo(RM, CM, OL);
return X;
}
static MCInstPrinter *createMipsMCInstPrinter(const Target &T,
unsigned SyntaxVariant,
const MCAsmInfo &MAI,
const MCInstrInfo &MII,
const MCRegisterInfo &MRI,
const MCSubtargetInfo &STI) {
return new MipsInstPrinter(MAI, MII, MRI);
}
static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
MCContext &Ctx, MCAsmBackend &MAB,
raw_ostream &_OS,
MCCodeEmitter *_Emitter,
bool RelaxAll,
bool NoExecStack) {
Triple TheTriple(TT);
return createELFStreamer(Ctx, MAB, _OS, _Emitter, RelaxAll, NoExecStack);
}
extern "C" void LLVMInitializeMipsTargetMC() {
// Register the MC asm info.
RegisterMCAsmInfoFn X(TheMipsTarget, createMipsMCAsmInfo);
RegisterMCAsmInfoFn Y(TheMipselTarget, createMipsMCAsmInfo);
RegisterMCAsmInfoFn A(TheMips64Target, createMipsMCAsmInfo);
RegisterMCAsmInfoFn B(TheMips64elTarget, createMipsMCAsmInfo);
// Register the MC codegen info.
TargetRegistry::RegisterMCCodeGenInfo(TheMipsTarget,
createMipsMCCodeGenInfo);
TargetRegistry::RegisterMCCodeGenInfo(TheMipselTarget,
createMipsMCCodeGenInfo);
TargetRegistry::RegisterMCCodeGenInfo(TheMips64Target,
createMipsMCCodeGenInfo);
TargetRegistry::RegisterMCCodeGenInfo(TheMips64elTarget,
createMipsMCCodeGenInfo);
// Register the MC instruction info.
TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
TargetRegistry::RegisterMCInstrInfo(TheMipselTarget, createMipsMCInstrInfo);
TargetRegistry::RegisterMCInstrInfo(TheMips64Target, createMipsMCInstrInfo);
TargetRegistry::RegisterMCInstrInfo(TheMips64elTarget,
createMipsMCInstrInfo);
// Register the MC register info.
TargetRegistry::RegisterMCRegInfo(TheMipsTarget, createMipsMCRegisterInfo);
TargetRegistry::RegisterMCRegInfo(TheMipselTarget, createMipsMCRegisterInfo);
TargetRegistry::RegisterMCRegInfo(TheMips64Target, createMipsMCRegisterInfo);
TargetRegistry::RegisterMCRegInfo(TheMips64elTarget,
createMipsMCRegisterInfo);
// Register the MC Code Emitter
TargetRegistry::RegisterMCCodeEmitter(TheMipsTarget,
createMipsMCCodeEmitterEB);
TargetRegistry::RegisterMCCodeEmitter(TheMipselTarget,
createMipsMCCodeEmitterEL);
TargetRegistry::RegisterMCCodeEmitter(TheMips64Target,
createMipsMCCodeEmitterEB);
TargetRegistry::RegisterMCCodeEmitter(TheMips64elTarget,
createMipsMCCodeEmitterEL);
// Register the object streamer.
TargetRegistry::RegisterMCObjectStreamer(TheMipsTarget, createMCStreamer);
TargetRegistry::RegisterMCObjectStreamer(TheMipselTarget, createMCStreamer);
TargetRegistry::RegisterMCObjectStreamer(TheMips64Target, createMCStreamer);
TargetRegistry::RegisterMCObjectStreamer(TheMips64elTarget,
createMCStreamer);
// Register the asm backend.
TargetRegistry::RegisterMCAsmBackend(TheMipsTarget,
createMipsAsmBackendEB32);
TargetRegistry::RegisterMCAsmBackend(TheMipselTarget,
createMipsAsmBackendEL32);
TargetRegistry::RegisterMCAsmBackend(TheMips64Target,
createMipsAsmBackendEB64);
TargetRegistry::RegisterMCAsmBackend(TheMips64elTarget,
createMipsAsmBackendEL64);
// Register the MC subtarget info.
TargetRegistry::RegisterMCSubtargetInfo(TheMipsTarget,
createMipsMCSubtargetInfo);
TargetRegistry::RegisterMCSubtargetInfo(TheMipselTarget,
createMipsMCSubtargetInfo);
TargetRegistry::RegisterMCSubtargetInfo(TheMips64Target,
createMipsMCSubtargetInfo);
TargetRegistry::RegisterMCSubtargetInfo(TheMips64elTarget,
createMipsMCSubtargetInfo);
// Register the MCInstPrinter.
TargetRegistry::RegisterMCInstPrinter(TheMipsTarget,
createMipsMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(TheMipselTarget,
createMipsMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(TheMips64Target,
createMipsMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(TheMips64elTarget,
createMipsMCInstPrinter);
}
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