llvm/llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h

//===-- llvm/CodeGen/GlobalISel/CombinerHelper.h --------------*- 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
//
//===--------------------------------------------------------------------===//
/// \file
/// This contains common combine transformations that may be used in a combine
/// pass,or by the target elsewhere.
/// Targets can pick individual opcode transformations from the helper or use
/// tryCombine which invokes all transformations. All of the transformations
/// return true if the MachineInstruction changed and false otherwise.
///
//===--------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_GLOBALISEL_COMBINERHELPER_H
#define LLVM_CODEGEN_GLOBALISEL_COMBINERHELPER_H

#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
#include "llvm/CodeGen/Register.h"
#include "llvm/CodeGenTypes/LowLevelType.h"
#include "llvm/IR/InstrTypes.h"
#include <functional>

namespace llvm {

class GISelChangeObserver;
class APInt;
class ConstantFP;
class GPtrAdd;
class GZExtLoad;
class MachineIRBuilder;
class MachineInstrBuilder;
class MachineRegisterInfo;
class MachineInstr;
class MachineOperand;
class GISelKnownBits;
class MachineDominatorTree;
class LegalizerInfo;
struct LegalityQuery;
class RegisterBank;
class RegisterBankInfo;
class TargetLowering;
class TargetRegisterInfo;

struct PreferredTuple { … };

struct IndexedLoadStoreMatchInfo { … };

struct PtrAddChain { … };

struct RegisterImmPair { … };

struct ShiftOfShiftedLogic { … };

BuildFnTy;

OperandBuildSteps;
struct InstructionBuildSteps { … };

struct InstructionStepsMatchInfo { … };

class CombinerHelper { … };
} // namespace llvm

#endif