SparcRegisterInfo.h revision 43dbe05279b753aabda571d9c83eaeb36987001a 
1//===- SparcRegisterInfo.h - Sparc Register Information Impl ----*- 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// 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 TargetInstrInfo;
24class 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 reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
34                     unsigned DestReg, const MachineInstr *Orig) const;
35
36  const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
37
38  const TargetRegisterClass* const* getCalleeSavedRegClasses(
39                                     const MachineFunction *MF = 0) const;
40
41  BitVector getReservedRegs(const MachineFunction &MF) const;
42
43  bool hasFP(const MachineFunction &MF) const;
44
45  void eliminateCallFramePseudoInstr(MachineFunction &MF,
46                                     MachineBasicBlock &MBB,
47                                     MachineBasicBlock::iterator I) const;
48
49  void eliminateFrameIndex(MachineBasicBlock::iterator II,
50                           int SPAdj, RegScavenger *RS = NULL) const;
51
52  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
53
54  void emitPrologue(MachineFunction &MF) const;
55  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
56
57  // Debug information queries.
58  unsigned getRARegister() const;
59  unsigned getFrameRegister(MachineFunction &MF) const;
60
61  // Exception handling queries.
62  unsigned getEHExceptionRegister() const;
63  unsigned getEHHandlerRegister() const;
64
65  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
66};
67
68} // end namespace llvm
69
70#endif
71