Mips16FrameLowering.h revision 700ed80d3da5e98e05ceb90e9bfb66058581a6db 
1//===-- Mips16FrameLowering.h - Mips16 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 MIPS16_FRAMEINFO_H
15#define MIPS16_FRAMEINFO_H
16
17#include "MipsFrameLowering.h"
18
19namespace llvm {
20class Mips16FrameLowering : public MipsFrameLowering {
21public:
22  explicit Mips16FrameLowering(const MipsSubtarget &STI)
23    : MipsFrameLowering(STI) {}
24
25  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
26  /// the function.
27  void emitPrologue(MachineFunction &MF) const;
28  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
29
30  void eliminateCallFramePseudoInstr(MachineFunction &MF,
31                                     MachineBasicBlock &MBB,
32                                     MachineBasicBlock::iterator I) const;
33
34  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
35                                 MachineBasicBlock::iterator MI,
36                                 const std::vector<CalleeSavedInfo> &CSI,
37                                 const TargetRegisterInfo *TRI) const;
38
39  bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
40                                   MachineBasicBlock::iterator MI,
41                                   const std::vector<CalleeSavedInfo> &CSI,
42                                   const TargetRegisterInfo *TRI) const;
43
44  bool hasReservedCallFrame(const MachineFunction &MF) const;
45
46  void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
47                                            RegScavenger *RS) const;
48};
49
50} // End llvm namespace
51
52#endif
53