Thumb1FrameLowering.h revision 36b56886974eae4f9c5ebc96befd3e7bfe5de338 
1//===-- Thumb1FrameLowering.h - Thumb1-specific frame info stuff --*- 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 __THUMB_FRAMEINFO_H_
15#define __THUMB_FRAMEINFO_H_
16
17#include "ARMFrameLowering.h"
18#include "ARMSubtarget.h"
19#include "Thumb1InstrInfo.h"
20#include "Thumb1RegisterInfo.h"
21#include "llvm/Target/TargetFrameLowering.h"
22
23namespace llvm {
24
25class Thumb1FrameLowering : public ARMFrameLowering {
26public:
27  explicit Thumb1FrameLowering(const ARMSubtarget &sti)
28    : ARMFrameLowering(sti) {
29  }
30
31  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
32  /// the function.
33  void emitPrologue(MachineFunction &MF) const override;
34  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
35
36  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
37                                 MachineBasicBlock::iterator MI,
38                                 const std::vector<CalleeSavedInfo> &CSI,
39                                 const TargetRegisterInfo *TRI) const override;
40  bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
41                                  MachineBasicBlock::iterator MI,
42                                  const std::vector<CalleeSavedInfo> &CSI,
43                                  const TargetRegisterInfo *TRI) const override;
44
45  bool hasReservedCallFrame(const MachineFunction &MF) const override;
46
47  void
48  eliminateCallFramePseudoInstr(MachineFunction &MF,
49                                MachineBasicBlock &MBB,
50                                MachineBasicBlock::iterator MI) const override;
51};
52
53} // End llvm namespace
54
55#endif
56