llvm/llvm/utils/TableGen/X86InstrMappingEmitter.cpp

//========- utils/TableGen/X86InstrMappingEmitter.cpp - X86 backend-*- C++ -*-//
//
// 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 tablegen backend is responsible for emitting the X86 backend
/// instruction mapping.
///
//===----------------------------------------------------------------------===//

#include "Common/CodeGenInstruction.h"
#include "Common/CodeGenTarget.h"
#include "X86RecognizableInstr.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include "llvm/TableGen/TableGenBackend.h"
#include <map>
#include <set>

usingnamespacellvm;
usingnamespaceX86Disassembler;

namespace {

class X86InstrMappingEmitter { … };

void X86InstrMappingEmitter::printClassDef(raw_ostream &OS) { … }

static void printMacroBegin(StringRef Macro, raw_ostream &OS) { … }

static void printMacroEnd(StringRef Macro, raw_ostream &OS) { … }

void X86InstrMappingEmitter::printTable(ArrayRef<Entry> Table, StringRef Name,
                                        StringRef Macro, raw_ostream &OS) { … }

static uint8_t byteFromBitsInit(const BitsInit *B) { … }

class IsMatch { … };

static bool isInteresting(const Record *Rec) { … }

void X86InstrMappingEmitter::emitCompressEVEXTable(
    ArrayRef<const CodeGenInstruction *> Insts, raw_ostream &OS) { … }

void X86InstrMappingEmitter::emitNFTransformTable(
    ArrayRef<const CodeGenInstruction *> Insts, raw_ostream &OS) { … }

void X86InstrMappingEmitter::emitND2NonNDTable(
    ArrayRef<const CodeGenInstruction *> Insts, raw_ostream &OS) { … }

void X86InstrMappingEmitter::emitSSE2AVXTable(
    ArrayRef<const CodeGenInstruction *> Insts, raw_ostream &OS) { … }

void X86InstrMappingEmitter::run(raw_ostream &OS) { … }
} // namespace

static TableGen::Emitter::OptClass<X86InstrMappingEmitter>
    X("gen-x86-instr-mapping", "Generate X86 instruction mapping");