SparcRegisterInfo.h revision 33464912237efaa0ed7060829e66b59055bdd48b 
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 TargetRegisterInfo class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef SPARCREGISTERINFO_H
15#define SPARCREGISTERINFO_H
16
17#include "llvm/Target/TargetRegisterInfo.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  const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
34
35  BitVector getReservedRegs(const MachineFunction &MF) const;
36
37  bool hasFP(const MachineFunction &MF) const;
38
39  void eliminateCallFramePseudoInstr(MachineFunction &MF,
40                                     MachineBasicBlock &MBB,
41                                     MachineBasicBlock::iterator I) const;
42
43  void eliminateFrameIndex(MachineBasicBlock::iterator II,
44                           int SPAdj, RegScavenger *RS = NULL) const;
45
46  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
47
48  // Debug information queries.
49  unsigned getRARegister() const;
50  unsigned getFrameRegister(const MachineFunction &MF) const;
51
52  // Exception handling queries.
53  unsigned getEHExceptionRegister() const;
54  unsigned getEHHandlerRegister() const;
55
56  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
57};
58
59} // end namespace llvm
60
61#endif
62