SparcRegisterInfo.h revision 0f3ac8d8d4ce23eb2ae6f9d850f389250874eea5 
1//===- SparcRegisterInfo.h - Sparc Register Information Impl ----*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file was developed by the LLVM research group and is distributed under
6// the University of Illinois Open Source License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file contains the Sparc implementation of the MRegisterInfo class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef SPARCREGISTERINFO_H
15#define SPARCREGISTERINFO_H
16
17#include "llvm/Target/MRegisterInfo.h"
18#include "SparcGenRegisterInfo.h.inc"
19
20namespace llvm {
21
22class SparcSubtarget;
23class Type;
24
25struct SparcRegisterInfo : public SparcGenRegisterInfo {
26  SparcSubtarget &Subtarget;
27
28  SparcRegisterInfo(SparcSubtarget &st);
29
30  /// Code Generation virtual methods...
31  void storeRegToStackSlot(MachineBasicBlock &MBB,
32                           MachineBasicBlock::iterator MBBI,
33                           unsigned SrcReg, int FrameIndex,
34                           const TargetRegisterClass *RC) const;
35
36  void loadRegFromStackSlot(MachineBasicBlock &MBB,
37                            MachineBasicBlock::iterator MBBI,
38                            unsigned DestReg, int FrameIndex,
39                            const TargetRegisterClass *RC) const;
40
41  void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
42                    unsigned DestReg, unsigned SrcReg,
43                    const TargetRegisterClass *RC) const;
44
45  virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
46                                          unsigned OpNum,
47                                          int FrameIndex) const;
48
49  const unsigned *getCalleeSaveRegs() const;
50
51  const TargetRegisterClass* const* getCalleeSaveRegClasses() const;
52
53  void eliminateCallFramePseudoInstr(MachineFunction &MF,
54                                     MachineBasicBlock &MBB,
55                                     MachineBasicBlock::iterator I) const;
56
57  void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
58
59  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
60
61  void emitPrologue(MachineFunction &MF) const;
62  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
63
64  // Debug information queries.
65  unsigned getRARegister() const;
66  unsigned getFrameRegister(MachineFunction &MF) const;
67};
68
69} // end namespace llvm
70
71#endif
72