third_party/llvm-7.0/llvm/lib/Target/ARC/ARCRegisterInfo.h

//===- ARCRegisterInfo.h - ARC Register Information Impl --------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the ARC implementation of the MRegisterInfo class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_ARC_ARCREGISTERINFO_H
#define LLVM_LIB_TARGET_ARC_ARCREGISTERINFO_H

#include "llvm/CodeGen/TargetRegisterInfo.h"

#define GET_REGINFO_HEADER
#include "ARCGenRegisterInfo.inc"

namespace llvm {

class TargetInstrInfo;

struct ARCRegisterInfo : public ARCGenRegisterInfo {
public:
  ARCRegisterInfo();

  /// Code Generation virtual methods...

  const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;

  BitVector getReservedRegs(const MachineFunction &MF) const override;

  bool requiresRegisterScavenging(const MachineFunction &MF) const override;

  bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const override;

  bool useFPForScavengingIndex(const MachineFunction &MF) const override;

  void eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
                           unsigned FIOperandNum,
                           RegScavenger *RS = nullptr) const override;

  const uint32_t *getCallPreservedMask(const MachineFunction &MF,
                                       CallingConv::ID CC) const override;

  // Debug information queries.
  unsigned getFrameRegister(const MachineFunction &MF) const override;

  //! Return whether to emit frame moves
  static bool needsFrameMoves(const MachineFunction &MF);
};

} // end namespace llvm

#endif // LLVM_LIB_TARGET_ARC_ARCREGISTERINFO_H