1//===-- MipsSEFrameLowering.h - Mips32/64 frame lowering --------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10//
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
15#define LLVM_LIB_TARGET_MIPS_MIPSSEFRAMELOWERING_H
16
17#include "MipsFrameLowering.h"
18
19namespace llvm {
20
21class MipsSEFrameLowering : public MipsFrameLowering {
22public:
23  explicit MipsSEFrameLowering(const MipsSubtarget &STI);
24
25  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
26  /// the function.
27  void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
28  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
29
30  int getFrameIndexReference(const MachineFunction &MF, int FI,
31                             unsigned &FrameReg) const override;
32
33  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
34                                 MachineBasicBlock::iterator MI,
35                                 const std::vector<CalleeSavedInfo> &CSI,
36                                 const TargetRegisterInfo *TRI) const override;
37
38  bool hasReservedCallFrame(const MachineFunction &MF) const override;
39
40  void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
41                            RegScavenger *RS) const override;
42  unsigned ehDataReg(unsigned I) const;
43
44private:
45  void emitInterruptEpilogueStub(MachineFunction &MF,
46                                 MachineBasicBlock &MBB) const;
47  void emitInterruptPrologueStub(MachineFunction &MF,
48                                 MachineBasicBlock &MBB) const;
49};
50} // End llvm namespace
51
52#endif
53