TheRock/compiler/amd-llvm/llvm/lib/Target/SPIRV/SPIRVLegalizerInfo.h

//===- SPIRVLegalizerInfo.h --- SPIR-V Legalization Rules --------*- 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 file declares the targeting of the MachineLegalizer class for SPIR-V.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_SPIRV_SPIRVLEGALIZERINFO_H
#define LLVM_LIB_TARGET_SPIRV_SPIRVLEGALIZERINFO_H

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

namespace llvm {

class LLVMContext;
class SPIRVSubtarget;

// This class provides the information for legalizing SPIR-V instructions.
class SPIRVLegalizerInfo : public LegalizerInfo {
  const SPIRVSubtarget *ST;
  SPIRVGlobalRegistry *GR;

public:
  bool legalizeCustom(LegalizerHelper &Helper, MachineInstr &MI,
                      LostDebugLocObserver &LocObserver) const override;
  bool legalizeIntrinsic(LegalizerHelper &Helper,
                         MachineInstr &MI) const override;

  SPIRVLegalizerInfo(const SPIRVSubtarget &ST);

private:
  bool legalizeIsFPClass(LegalizerHelper &Helper, MachineInstr &MI,
                         LostDebugLocObserver &LocObserver) const;
  bool legalizeBitcast(LegalizerHelper &Helper, MachineInstr &MI) const;
};
} // namespace llvm
#endif // LLVM_LIB_TARGET_SPIRV_SPIRVLEGALIZERINFO_H