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//===- AArch64LegalizerInfo --------------------------------------*- 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 file declares the targeting of the Machinelegalizer class for
/// AArch64.
/// \todo This should be generated by TableGen.
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AARCH64_AARCH64MACHINELEGALIZER_H
#define LLVM_LIB_TARGET_AARCH64_AARCH64MACHINELEGALIZER_H
#include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
namespace llvm {
class LLVMContext;
class AArch64Subtarget;
/// This class provides the information for the target register banks.
class AArch64LegalizerInfo : public LegalizerInfo {
public:
AArch64LegalizerInfo(const AArch64Subtarget &ST);
bool legalizeCustom(LegalizerHelper &Helper, MachineInstr &MI) const override;
bool legalizeIntrinsic(LegalizerHelper &Helper,
MachineInstr &MI) const override;
private:
bool legalizeBSwap(MachineInstr &MI, MachineRegisterInfo &MRI,
MachineIRBuilder &MIRBuilder) const;
bool legalizeVaArg(MachineInstr &MI, MachineRegisterInfo &MRI,
MachineIRBuilder &MIRBuilder) const;
bool legalizeLoadStore(MachineInstr &MI, MachineRegisterInfo &MRI,
MachineIRBuilder &MIRBuilder,
GISelChangeObserver &Observer) const;
bool legalizeShlAshrLshr(MachineInstr &MI, MachineRegisterInfo &MRI,
MachineIRBuilder &MIRBuilder,
GISelChangeObserver &Observer) const;
bool legalizeSmallCMGlobalValue(MachineInstr &MI, MachineRegisterInfo &MRI,
MachineIRBuilder &MIRBuilder,
GISelChangeObserver &Observer) const;
bool legalizeVectorTrunc(MachineInstr &MI, LegalizerHelper &Helper) const;
bool legalizeBitfieldExtract(MachineInstr &MI, MachineRegisterInfo &MRI,
LegalizerHelper &Helper) const;
bool legalizeRotate(MachineInstr &MI, MachineRegisterInfo &MRI,
LegalizerHelper &Helper) const;
bool legalizeCTPOP(MachineInstr &MI, MachineRegisterInfo &MRI,
LegalizerHelper &Helper) const;
bool legalizeAtomicCmpxchg128(MachineInstr &MI, MachineRegisterInfo &MRI,
LegalizerHelper &Helper) const;
bool legalizeCTTZ(MachineInstr &MI, LegalizerHelper &Helper) const;
const AArch64Subtarget *ST;
};
} // End llvm namespace.
#endif
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