MipsSEFrameLowering.h

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//===- MipsSEFrameLowering.h - Mips32/64 frame lowering ---------*- 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
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
#define LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
 
#include "MipsFrameLowering.h"
 
namespace llvm {
 
class MachineBasicBlock;
class MachineFunction;
class MipsSubtarget;
 
class MipsSEFrameLowering : public MipsFrameLowering {
public:
  explicit MipsSEFrameLowering(const MipsSubtarget &STI);
 
  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
  /// the function.
  void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
 
  StackOffset getFrameIndexReference(const MachineFunction &MF, int FI,
                                     Register &FrameReg) const override;
 
  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
                                 MachineBasicBlock::iterator MI,
                                 ArrayRef<CalleeSavedInfo> CSI,
                                 const TargetRegisterInfo *TRI) const override;
 
  bool hasReservedCallFrame(const MachineFunction &MF) const override;
 
  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
                            RegScavenger *RS) const override;
 
private:
  void emitInterruptEpilogueStub(MachineFunction &MF,
                                 MachineBasicBlock &MBB) const;
  void emitInterruptPrologueStub(MachineFunction &MF,
                                 MachineBasicBlock &MBB) const;
};
 
} // end namespace llvm
 
#endif // LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H