llvm/llvm/lib/Target/LoongArch/Disassembler/LoongArchDisassembler.cpp

//===-- LoongArchDisassembler.cpp - Disassembler for LoongArch ------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file implements the LoongArchDisassembler class.
//
//===----------------------------------------------------------------------===//

#include "MCTargetDesc/LoongArchBaseInfo.h"
#include "MCTargetDesc/LoongArchMCTargetDesc.h"
#include "TargetInfo/LoongArchTargetInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDecoderOps.h"
#include "llvm/MC/MCDisassembler/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Endian.h"

usingnamespacellvm;

#define DEBUG_TYPE …

DecodeStatus;

namespace {
class LoongArchDisassembler : public MCDisassembler { … };
} // end namespace

static MCDisassembler *createLoongArchDisassembler(const Target &T,
                                                   const MCSubtargetInfo &STI,
                                                   MCContext &Ctx) { … }

extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeLoongArchDisassembler() { … }

static DecodeStatus DecodeGPRRegisterClass(MCInst &Inst, uint64_t RegNo,
                                           uint64_t Address,
                                           const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeFPR32RegisterClass(MCInst &Inst, uint64_t RegNo,
                                             uint64_t Address,
                                             const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeFPR64RegisterClass(MCInst &Inst, uint64_t RegNo,
                                             uint64_t Address,
                                             const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeCFRRegisterClass(MCInst &Inst, uint64_t RegNo,
                                           uint64_t Address,
                                           const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeFCSRRegisterClass(MCInst &Inst, uint64_t RegNo,
                                            uint64_t Address,
                                            const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeLSX128RegisterClass(MCInst &Inst, uint64_t RegNo,
                                              uint64_t Address,
                                              const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeLASX256RegisterClass(MCInst &Inst, uint64_t RegNo,
                                               uint64_t Address,
                                               const MCDisassembler *Decoder) { … }

static DecodeStatus DecodeSCRRegisterClass(MCInst &Inst, uint64_t RegNo,
                                           uint64_t Address,
                                           const MCDisassembler *Decoder) { … }

template <unsigned N, int P = 0>
static DecodeStatus decodeUImmOperand(MCInst &Inst, uint64_t Imm,
                                      int64_t Address,
                                      const MCDisassembler *Decoder) { … }

template <unsigned N, unsigned S = 0>
static DecodeStatus decodeSImmOperand(MCInst &Inst, uint64_t Imm,
                                      int64_t Address,
                                      const MCDisassembler *Decoder) { … }

#include "LoongArchGenDisassemblerTables.inc"

DecodeStatus LoongArchDisassembler::getInstruction(MCInst &MI, uint64_t &Size,
                                                   ArrayRef<uint8_t> Bytes,
                                                   uint64_t Address,
                                                   raw_ostream &CS) const { … }