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//===- AMDGPURegisterBankInfo -----------------------------------*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// This file declares the targeting of the RegisterBankInfo class for AMDGPU.
/// \todo This should be generated by TableGen.
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUREGISTERBANKINFO_H
#define LLVM_LIB_TARGET_AMDGPU_AMDGPUREGISTERBANKINFO_H
#include "llvm/CodeGen/GlobalISel/RegisterBankInfo.h"
#define GET_REGBANK_DECLARATIONS
#include "AMDGPUGenRegisterBank.inc"
#undef GET_REGBANK_DECLARATIONS
namespace llvm {
class SIRegisterInfo;
class TargetRegisterInfo;
/// This class provides the information for the target register banks.
class AMDGPUGenRegisterBankInfo : public RegisterBankInfo {
protected:
#define GET_TARGET_REGBANK_CLASS
#include "AMDGPUGenRegisterBank.inc"
};
class AMDGPURegisterBankInfo : public AMDGPUGenRegisterBankInfo {
const SIRegisterInfo *TRI;
/// See RegisterBankInfo::applyMapping.
void applyMappingImpl(const OperandsMapper &OpdMapper) const override;
const RegisterBankInfo::InstructionMapping &
getInstrMappingForLoad(const MachineInstr &MI) const;
unsigned getRegBankID(unsigned Reg, const MachineRegisterInfo &MRI,
const TargetRegisterInfo &TRI,
unsigned Default = AMDGPU::VGPRRegBankID) const;
bool isSALUMapping(const MachineInstr &MI) const;
const InstructionMapping &getDefaultMappingSOP(const MachineInstr &MI) const;
const InstructionMapping &getDefaultMappingVOP(const MachineInstr &MI) const;
public:
AMDGPURegisterBankInfo(const TargetRegisterInfo &TRI);
unsigned copyCost(const RegisterBank &A, const RegisterBank &B,
unsigned Size) const override;
const RegisterBank &
getRegBankFromRegClass(const TargetRegisterClass &RC) const override;
InstructionMappings
getInstrAlternativeMappings(const MachineInstr &MI) const override;
const InstructionMapping &
getInstrMapping(const MachineInstr &MI) const override;
};
} // End llvm namespace.
#endif
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