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//===- AMDGPUDisassembler.hpp - Disassembler for AMDGPU ISA -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// \file
///
/// This file contains declaration for AMDGPU ISA disassembler
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_DISASSEMBLER_AMDGPUDISASSEMBLER_H
#define LLVM_LIB_TARGET_AMDGPU_DISASSEMBLER_AMDGPUDISASSEMBLER_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCDisassembler/MCDisassembler.h"
#include "llvm/MC/MCDisassembler/MCRelocationInfo.h"
#include "llvm/MC/MCDisassembler/MCSymbolizer.h"
#include <algorithm>
#include <cstdint>
#include <memory>
namespace llvm {
class MCInst;
class MCOperand;
class MCSubtargetInfo;
class Twine;
//===----------------------------------------------------------------------===//
// AMDGPUDisassembler
//===----------------------------------------------------------------------===//
class AMDGPUDisassembler : public MCDisassembler {
private:
std::unique_ptr<MCInstrInfo const> const MCII;
const MCRegisterInfo &MRI;
mutable ArrayRef<uint8_t> Bytes;
mutable uint32_t Literal;
mutable bool HasLiteral;
public:
AMDGPUDisassembler(const MCSubtargetInfo &STI, MCContext &Ctx,
MCInstrInfo const *MCII) :
MCDisassembler(STI, Ctx), MCII(MCII), MRI(*Ctx.getRegisterInfo()) {}
~AMDGPUDisassembler() override = default;
DecodeStatus getInstruction(MCInst &MI, uint64_t &Size,
ArrayRef<uint8_t> Bytes, uint64_t Address,
raw_ostream &WS, raw_ostream &CS) const override;
const char* getRegClassName(unsigned RegClassID) const;
MCOperand createRegOperand(unsigned int RegId) const;
MCOperand createRegOperand(unsigned RegClassID, unsigned Val) const;
MCOperand createSRegOperand(unsigned SRegClassID, unsigned Val) const;
MCOperand errOperand(unsigned V, const Twine& ErrMsg) const;
DecodeStatus tryDecodeInst(const uint8_t* Table, MCInst &MI, uint64_t Inst,
uint64_t Address) const;
DecodeStatus convertSDWAInst(MCInst &MI) const;
DecodeStatus convertMIMGInst(MCInst &MI) const;
MCOperand decodeOperand_VGPR_32(unsigned Val) const;
MCOperand decodeOperand_VS_32(unsigned Val) const;
MCOperand decodeOperand_VS_64(unsigned Val) const;
MCOperand decodeOperand_VS_128(unsigned Val) const;
MCOperand decodeOperand_VSrc16(unsigned Val) const;
MCOperand decodeOperand_VSrcV216(unsigned Val) const;
MCOperand decodeOperand_VReg_64(unsigned Val) const;
MCOperand decodeOperand_VReg_96(unsigned Val) const;
MCOperand decodeOperand_VReg_128(unsigned Val) const;
MCOperand decodeOperand_SReg_32(unsigned Val) const;
MCOperand decodeOperand_SReg_32_XM0_XEXEC(unsigned Val) const;
MCOperand decodeOperand_SReg_32_XEXEC_HI(unsigned Val) const;
MCOperand decodeOperand_SReg_64(unsigned Val) const;
MCOperand decodeOperand_SReg_64_XEXEC(unsigned Val) const;
MCOperand decodeOperand_SReg_128(unsigned Val) const;
MCOperand decodeOperand_SReg_256(unsigned Val) const;
MCOperand decodeOperand_SReg_512(unsigned Val) const;
enum OpWidthTy {
OPW32,
OPW64,
OPW128,
OPW16,
OPWV216,
OPW_LAST_,
OPW_FIRST_ = OPW32
};
unsigned getVgprClassId(const OpWidthTy Width) const;
unsigned getSgprClassId(const OpWidthTy Width) const;
unsigned getTtmpClassId(const OpWidthTy Width) const;
static MCOperand decodeIntImmed(unsigned Imm);
static MCOperand decodeFPImmed(OpWidthTy Width, unsigned Imm);
MCOperand decodeLiteralConstant() const;
MCOperand decodeSrcOp(const OpWidthTy Width, unsigned Val) const;
MCOperand decodeSpecialReg32(unsigned Val) const;
MCOperand decodeSpecialReg64(unsigned Val) const;
MCOperand decodeSDWASrc(const OpWidthTy Width, unsigned Val) const;
MCOperand decodeSDWASrc16(unsigned Val) const;
MCOperand decodeSDWASrc32(unsigned Val) const;
MCOperand decodeSDWAVopcDst(unsigned Val) const;
int getTTmpIdx(unsigned Val) const;
bool isVI() const;
bool isGFX9() const;
};
//===----------------------------------------------------------------------===//
// AMDGPUSymbolizer
//===----------------------------------------------------------------------===//
class AMDGPUSymbolizer : public MCSymbolizer {
private:
void *DisInfo;
public:
AMDGPUSymbolizer(MCContext &Ctx, std::unique_ptr<MCRelocationInfo> &&RelInfo,
void *disInfo)
: MCSymbolizer(Ctx, std::move(RelInfo)), DisInfo(disInfo) {}
bool tryAddingSymbolicOperand(MCInst &Inst, raw_ostream &cStream,
int64_t Value, uint64_t Address,
bool IsBranch, uint64_t Offset,
uint64_t InstSize) override;
void tryAddingPcLoadReferenceComment(raw_ostream &cStream,
int64_t Value,
uint64_t Address) override;
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_AMDGPU_DISASSEMBLER_AMDGPUDISASSEMBLER_H
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