SparcRegisterInfo.h revision 6f07bd6ae8c2b11e78f351d7751d1e9b32f38a75 
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  unsigned eliminateFrameIndex(MachineBasicBlock::iterator II,
44                               int SPAdj, FrameIndexValue *Value = NULL,
45                               RegScavenger *RS = NULL) const;
46
47  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
48
49  void emitPrologue(MachineFunction &MF) const;
50  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
51
52  // Debug information queries.
53  unsigned getRARegister() const;
54  unsigned getFrameRegister(const MachineFunction &MF) const;
55
56  // Exception handling queries.
57  unsigned getEHExceptionRegister() const;
58  unsigned getEHHandlerRegister() const;
59
60  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
61};
62
63} // end namespace llvm
64
65#endif
66