Thumb1FrameLowering.h revision 16c29b5f285f375be53dabaa73e3e91107485fe4 
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 __THUMM_FRAMEINFO_H_
16
17#include "ARM.h"
18#include "ARMFrameLowering.h"
19#include "ARMSubtarget.h"
20#include "Thumb1InstrInfo.h"
21#include "Thumb1RegisterInfo.h"
22#include "llvm/Target/TargetFrameLowering.h"
23
24namespace llvm {
25  class ARMSubtarget;
26
27class Thumb1FrameLowering : public ARMFrameLowering {
28public:
29  explicit Thumb1FrameLowering(const ARMSubtarget &sti)
30    : ARMFrameLowering(sti) {
31  }
32
33  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
34  /// the function.
35  void emitPrologue(MachineFunction &MF) const;
36  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
37
38  bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
39                                 MachineBasicBlock::iterator MI,
40                                 const std::vector<CalleeSavedInfo> &CSI,
41                                 const TargetRegisterInfo *TRI) const;
42  bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
43                                   MachineBasicBlock::iterator MI,
44                                   const std::vector<CalleeSavedInfo> &CSI,
45                                   const TargetRegisterInfo *TRI) const;
46
47  bool hasReservedCallFrame(const MachineFunction &MF) const;
48};
49
50} // End llvm namespace
51
52#endif
53