MSP430RegisterInfo.h revision b9c2fd964ee7dd7823ac71db8443055e4d0f1c15 
1//===- MSP430RegisterInfo.h - MSP430 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 MSP430 implementation of the MRegisterInfo class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_TARGET_MSP430REGISTERINFO_H
15#define LLVM_TARGET_MSP430REGISTERINFO_H
16
17#include "llvm/Target/TargetRegisterInfo.h"
18#include "MSP430GenRegisterInfo.h.inc"
19
20namespace llvm {
21
22class TargetInstrInfo;
23class MSP430TargetMachine;
24
25struct MSP430RegisterInfo : public MSP430GenRegisterInfo {
26private:
27  MSP430TargetMachine &TM;
28  const TargetInstrInfo &TII;
29
30  /// StackAlign - Default stack alignment.
31  ///
32  unsigned StackAlign;
33public:
34  MSP430RegisterInfo(MSP430TargetMachine &tm, const TargetInstrInfo &tii);
35
36  /// Code Generation virtual methods...
37  const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
38
39  const TargetRegisterClass* const*
40    getCalleeSavedRegClasses(const MachineFunction *MF = 0) const;
41
42  BitVector getReservedRegs(const MachineFunction &MF) const;
43  const TargetRegisterClass* getPointerRegClass(unsigned Kind = 0) const;
44
45  bool hasFP(const MachineFunction &MF) const;
46  bool hasReservedCallFrame(MachineFunction &MF) const;
47
48  void eliminateCallFramePseudoInstr(MachineFunction &MF,
49                                     MachineBasicBlock &MBB,
50                                     MachineBasicBlock::iterator I) const;
51
52  unsigned eliminateFrameIndex(MachineBasicBlock::iterator II,
53                               int SPAdj, int *Value = NULL,
54                               RegScavenger *RS = NULL) const;
55
56  void emitPrologue(MachineFunction &MF) const;
57  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
58
59  void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
60
61  // Debug information queries.
62  unsigned getRARegister() const;
63  unsigned getFrameRegister(const MachineFunction &MF) const;
64
65  //! Get DWARF debugging register number
66  int getDwarfRegNum(unsigned RegNum, bool isEH) const;
67};
68
69} // end namespace llvm
70
71#endif // LLVM_TARGET_MSP430REGISTERINFO_H
72