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//===-- AMDGPUMCTargetDesc.cpp - AMDGPU Target Descriptions ---------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
/// \file
/// This file provides AMDGPU specific target descriptions.
//
//===----------------------------------------------------------------------===//
#include "AMDGPUMCTargetDesc.h"
#include "AMDGPUELFStreamer.h"
#include "AMDGPUInstPrinter.h"
#include "AMDGPUMCAsmInfo.h"
#include "AMDGPUTargetStreamer.h"
#include "SIDefines.h"
#include "TargetInfo/AMDGPUTargetInfo.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInstrAnalysis.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MachineLocation.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
#define GET_INSTRINFO_MC_DESC
#include "AMDGPUGenInstrInfo.inc"
#define GET_SUBTARGETINFO_MC_DESC
#include "AMDGPUGenSubtargetInfo.inc"
#define NoSchedModel NoSchedModelR600
#define GET_SUBTARGETINFO_MC_DESC
#include "R600GenSubtargetInfo.inc"
#undef NoSchedModelR600
#define GET_REGINFO_MC_DESC
#include "AMDGPUGenRegisterInfo.inc"
#define GET_REGINFO_MC_DESC
#include "R600GenRegisterInfo.inc"
static MCInstrInfo *createAMDGPUMCInstrInfo() {
MCInstrInfo *X = new MCInstrInfo();
InitAMDGPUMCInstrInfo(X);
return X;
}
static MCRegisterInfo *createAMDGPUMCRegisterInfo(const Triple &TT) {
MCRegisterInfo *X = new MCRegisterInfo();
if (TT.getArch() == Triple::r600)
InitR600MCRegisterInfo(X, 0);
else
InitAMDGPUMCRegisterInfo(X, AMDGPU::PC_REG);
return X;
}
MCRegisterInfo *llvm::createGCNMCRegisterInfo(AMDGPUDwarfFlavour DwarfFlavour) {
MCRegisterInfo *X = new MCRegisterInfo();
InitAMDGPUMCRegisterInfo(X, AMDGPU::PC_REG, DwarfFlavour);
return X;
}
static MCSubtargetInfo *
createAMDGPUMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
if (TT.getArch() == Triple::r600)
return createR600MCSubtargetInfoImpl(TT, CPU, FS);
return createAMDGPUMCSubtargetInfoImpl(TT, CPU, FS);
}
static MCInstPrinter *createAMDGPUMCInstPrinter(const Triple &T,
unsigned SyntaxVariant,
const MCAsmInfo &MAI,
const MCInstrInfo &MII,
const MCRegisterInfo &MRI) {
if (T.getArch() == Triple::r600)
return new R600InstPrinter(MAI, MII, MRI);
else
return new AMDGPUInstPrinter(MAI, MII, MRI);
}
static MCTargetStreamer *createAMDGPUAsmTargetStreamer(MCStreamer &S,
formatted_raw_ostream &OS,
MCInstPrinter *InstPrint,
bool isVerboseAsm) {
return new AMDGPUTargetAsmStreamer(S, OS);
}
static MCTargetStreamer * createAMDGPUObjectTargetStreamer(
MCStreamer &S,
const MCSubtargetInfo &STI) {
return new AMDGPUTargetELFStreamer(S, STI);
}
static MCStreamer *createMCStreamer(const Triple &T, MCContext &Context,
std::unique_ptr<MCAsmBackend> &&MAB,
std::unique_ptr<MCObjectWriter> &&OW,
std::unique_ptr<MCCodeEmitter> &&Emitter,
bool RelaxAll) {
return createAMDGPUELFStreamer(T, Context, std::move(MAB), std::move(OW),
std::move(Emitter), RelaxAll);
}
namespace {
class AMDGPUMCInstrAnalysis : public MCInstrAnalysis {
public:
explicit AMDGPUMCInstrAnalysis(const MCInstrInfo *Info)
: MCInstrAnalysis(Info) {}
bool evaluateBranch(const MCInst &Inst, uint64_t Addr, uint64_t Size,
uint64_t &Target) const override {
if (Inst.getNumOperands() == 0 || !Inst.getOperand(0).isImm() ||
Info->get(Inst.getOpcode()).OpInfo[0].OperandType !=
MCOI::OPERAND_PCREL)
return false;
int64_t Imm = Inst.getOperand(0).getImm();
// Our branches take a simm16, but we need two extra bits to account for
// the factor of 4.
APInt SignedOffset(18, Imm * 4, true);
Target = (SignedOffset.sext(64) + Addr + Size).getZExtValue();
return true;
}
};
} // end anonymous namespace
static MCInstrAnalysis *createAMDGPUMCInstrAnalysis(const MCInstrInfo *Info) {
return new AMDGPUMCInstrAnalysis(Info);
}
extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeAMDGPUTargetMC() {
TargetRegistry::RegisterMCInstrInfo(getTheGCNTarget(), createAMDGPUMCInstrInfo);
TargetRegistry::RegisterMCInstrInfo(getTheAMDGPUTarget(), createR600MCInstrInfo);
for (Target *T : {&getTheAMDGPUTarget(), &getTheGCNTarget()}) {
RegisterMCAsmInfo<AMDGPUMCAsmInfo> X(*T);
TargetRegistry::RegisterMCRegInfo(*T, createAMDGPUMCRegisterInfo);
TargetRegistry::RegisterMCSubtargetInfo(*T, createAMDGPUMCSubtargetInfo);
TargetRegistry::RegisterMCInstPrinter(*T, createAMDGPUMCInstPrinter);
TargetRegistry::RegisterMCInstrAnalysis(*T, createAMDGPUMCInstrAnalysis);
TargetRegistry::RegisterMCAsmBackend(*T, createAMDGPUAsmBackend);
TargetRegistry::RegisterELFStreamer(*T, createMCStreamer);
}
// R600 specific registration
TargetRegistry::RegisterMCCodeEmitter(getTheAMDGPUTarget(),
createR600MCCodeEmitter);
TargetRegistry::RegisterObjectTargetStreamer(
getTheAMDGPUTarget(), createAMDGPUObjectTargetStreamer);
// GCN specific registration
TargetRegistry::RegisterMCCodeEmitter(getTheGCNTarget(),
createSIMCCodeEmitter);
TargetRegistry::RegisterAsmTargetStreamer(getTheGCNTarget(),
createAMDGPUAsmTargetStreamer);
TargetRegistry::RegisterObjectTargetStreamer(
getTheGCNTarget(), createAMDGPUObjectTargetStreamer);
}
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