SparcRegisterInfo.h revision dff4b4c5a7cc894d3b4b6c6e779ea8f47fa50630 
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  const TargetRegisterClass* const* getCalleeSavedRegClasses(
36                                     const MachineFunction *MF = 0) const;
37
38  BitVector getReservedRegs(const MachineFunction &MF) const;
39
40  bool hasFP(const MachineFunction &MF) const;
41
42  void eliminateCallFramePseudoInstr(MachineFunction &MF,
43                                     MachineBasicBlock &MBB,
44                                     MachineBasicBlock::iterator I) const;
45
46  unsigned eliminateFrameIndex(MachineBasicBlock::iterator II,
47                               int SPAdj, FrameIndexValue *Value = NULL,
48                               RegScavenger *RS = NULL) const;
49
50  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
51
52  void emitPrologue(MachineFunction &MF) const;
53  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
54
55  // Debug information queries.
56  unsigned getRARegister() const;
57  unsigned getFrameRegister(const MachineFunction &MF) const;
58
59  // Exception handling queries.
60  unsigned getEHExceptionRegister() const;
61  unsigned getEHHandlerRegister() const;
62
63  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
64};
65
66} // end namespace llvm
67
68#endif
69