third_party/llvm-10.0/llvm/lib/Target/AMDGPU/AMDGPURegisterInfo.h

//===-- AMDGPURegisterInfo.h - AMDGPURegisterInfo Interface -*- 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
/// TargetRegisterInfo interface that is implemented by all hw codegen
/// targets.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUREGISTERINFO_H
#define LLVM_LIB_TARGET_AMDGPU_AMDGPUREGISTERINFO_H

#define GET_REGINFO_HEADER
#include "AMDGPUGenRegisterInfo.inc"

namespace llvm {

class GCNSubtarget;
class TargetInstrInfo;

struct AMDGPURegisterInfo : public AMDGPUGenRegisterInfo {
  AMDGPURegisterInfo();

  /// \returns the sub reg enum value for the given \p Channel
  /// (e.g. getSubRegFromChannel(0) -> AMDGPU::sub0)
  static unsigned getSubRegFromChannel(unsigned Channel, unsigned NumRegs = 1);

  void reserveRegisterTuples(BitVector &, unsigned Reg) const;
};

} // End namespace llvm

#endif