SparcRegisterInfo.h revision 9efce638d307b2c71bd7f0258d47501661434c27 
1005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//===- SparcRegisterInfo.h - Sparc Register Information Impl ----*- C++ -*-===//
2005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//
3005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//                     The LLVM Compiler Infrastructure
4005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//
5005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov// This file was developed by the LLVM research group and is distributed under
6005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov// the University of Illinois Open Source License. See LICENSE.TXT for details.
7005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//
8005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//===----------------------------------------------------------------------===//
9005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//
10005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov// This file contains the Sparc implementation of the MRegisterInfo class.
11005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//
12005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov//===----------------------------------------------------------------------===//
13005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov
14005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov#ifndef SPARCREGISTERINFO_H
15005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov#define SPARCREGISTERINFO_H
16005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov
17005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov#include "llvm/Target/MRegisterInfo.h"
18005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov#include "SparcGenRegisterInfo.h.inc"
19005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov
20005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonovnamespace llvm {
21005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonov
22005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonovclass SparcSubtarget;
23005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonovclass TargetInstrInfo;
24005159e92420a102516ee6e29ef2178c818da5d0Alexey Samsonovclass Type;
25
26struct SparcRegisterInfo : public SparcGenRegisterInfo {
27  SparcSubtarget &Subtarget;
28  const TargetInstrInfo &TII;
29
30  SparcRegisterInfo(SparcSubtarget &st, const TargetInstrInfo &tii);
31
32  /// Code Generation virtual methods...
33  void storeRegToStackSlot(MachineBasicBlock &MBB,
34                           MachineBasicBlock::iterator MBBI,
35                           unsigned SrcReg, int FrameIndex,
36                           const TargetRegisterClass *RC) const;
37
38  void loadRegFromStackSlot(MachineBasicBlock &MBB,
39                            MachineBasicBlock::iterator MBBI,
40                            unsigned DestReg, int FrameIndex,
41                            const TargetRegisterClass *RC) const;
42
43  void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
44                    unsigned DestReg, unsigned SrcReg,
45                    const TargetRegisterClass *DestRC,
46                    const TargetRegisterClass *SrcRC) const;
47
48  void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
49                     unsigned DestReg, const MachineInstr *Orig) const;
50
51  virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
52                                          unsigned OpNum,
53                                          int FrameIndex) const;
54
55  virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
56                                          unsigned OpNum,
57                                          MachineInstr* LoadMI) const {
58    return 0;
59  }
60
61  const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
62
63  const TargetRegisterClass* const* getCalleeSavedRegClasses(
64                                     const MachineFunction *MF = 0) const;
65
66  BitVector getReservedRegs(const MachineFunction &MF) const;
67
68  bool hasFP(const MachineFunction &MF) const;
69
70  void eliminateCallFramePseudoInstr(MachineFunction &MF,
71                                     MachineBasicBlock &MBB,
72                                     MachineBasicBlock::iterator I) const;
73
74  void eliminateFrameIndex(MachineBasicBlock::iterator II,
75                           int SPAdj, RegScavenger *RS = NULL) const;
76
77  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
78
79  void emitPrologue(MachineFunction &MF) const;
80  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
81
82  // Debug information queries.
83  unsigned getRARegister() const;
84  unsigned getFrameRegister(MachineFunction &MF) const;
85
86  // Exception handling queries.
87  unsigned getEHExceptionRegister() const;
88  unsigned getEHHandlerRegister() const;
89};
90
91} // end namespace llvm
92
93#endif
94