LanaiRegisterInfo.h

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//===- LanaiRegisterInfo.h - Lanai Register Information Impl ----*- 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 contains the Lanai implementation of the TargetRegisterInfo class.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_LIB_TARGET_LANAI_LANAIREGISTERINFO_H
#define LLVM_LIB_TARGET_LANAI_LANAIREGISTERINFO_H
 
#include "llvm/CodeGen/TargetRegisterInfo.h"
 
#define GET_REGINFO_HEADER
#include "LanaiGenRegisterInfo.inc"
 
namespace llvm {
 
struct LanaiRegisterInfo : public LanaiGenRegisterInfo {
  LanaiRegisterInfo();
 
  const uint32_t *getCallPreservedMask(const MachineFunction &MF,
                                       CallingConv::ID) const override;
 
  // Code Generation virtual methods.
  const uint16_t *
  getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override;
 
  BitVector getReservedRegs(const MachineFunction &MF) const override;
 
  bool requiresRegisterScavenging(const MachineFunction &MF) const override;
 
  bool supportsBackwardScavenger() const override { return true; }
 
  bool eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
                           unsigned FIOperandNum,
                           RegScavenger *RS = nullptr) const override;
 
  // Debug information queries.
  unsigned getRARegister() const;
  Register getFrameRegister(const MachineFunction &MF) const override;
  Register getBaseRegister() const;
  bool hasBasePointer(const MachineFunction &MF) const;
 
  int getDwarfRegNum(unsigned RegNum, bool IsEH) const;
};
 
} // end namespace llvm
 
#endif // LLVM_LIB_TARGET_LANAI_LANAIREGISTERINFO_H