llvm.org GIT mirror llvm / release_60 lib / Target / Mips / MipsSEFrameLowering.h

Tree @release_60 (Download .tar.gz)

MipsSEFrameLowering.h @release_60raw · history · blame

//===- MipsSEFrameLowering.h - Mips32/64 frame lowering ---------*- C++ -*-===//
//                     The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.


#include "MipsFrameLowering.h"
#include <vector>

namespace llvm {

class MachineBasicBlock;
class MachineFunction;
class MipsSubtarget;

class MipsSEFrameLowering : public MipsFrameLowering {
  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;

  int getFrameIndexReference(const MachineFunction &MF, int FI,
                             unsigned &FrameReg) const override;

  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
                                 MachineBasicBlock::iterator MI,
                                 const std::vector<CalleeSavedInfo> &CSI,
                                 const TargetRegisterInfo *TRI) const override;

  bool hasReservedCallFrame(const MachineFunction &MF) const override;

  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
                            RegScavenger *RS) const override;
  unsigned ehDataReg(unsigned I) const;

  void emitInterruptEpilogueStub(MachineFunction &MF,
                                 MachineBasicBlock &MBB) const;
  void emitInterruptPrologueStub(MachineFunction &MF,
                                 MachineBasicBlock &MBB) const;

} // end namespace llvm