llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.h

//===- AMDGPULegalizerInfo ---------------------------------------*- 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
/// AMDGPU.
/// \todo This should be generated by TableGen.
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUMACHINELEGALIZER_H
#define LLVM_LIB_TARGET_AMDGPU_AMDGPUMACHINELEGALIZER_H

#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"

namespace llvm {

class GCNTargetMachine;
class LLVMContext;
class GCNSubtarget;

/// This class provides the information for the target register banks.
class AMDGPULegalizerInfo : public LegalizerInfo {
public:
  AMDGPULegalizerInfo(const GCNSubtarget &ST,
                      const GCNTargetMachine &TM);

  bool legalizeCustom(MachineInstr &MI, MachineRegisterInfo &MRI,
                      MachineIRBuilder &MIRBuilder,
                      GISelChangeObserver &Observer) const override;

  unsigned getSegmentAperture(unsigned AddrSpace,
                              MachineRegisterInfo &MRI,
                              MachineIRBuilder &MIRBuilder) const;

  bool legalizeAddrSpaceCast(MachineInstr &MI, MachineRegisterInfo &MRI,
                             MachineIRBuilder &MIRBuilder) const;
};
} // End llvm namespace.
#endif