MSP430InstrInfo.h revision 3926fb63c24ceeefc0215b8e14eb81c85403639e 
1//===- MSP430InstrInfo.h - MSP430 Instruction Information -------*- 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 TargetInstrInfo class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_TARGET_MSP430INSTRINFO_H
15#define LLVM_TARGET_MSP430INSTRINFO_H
16
17#include "llvm/Target/TargetInstrInfo.h"
18#include "MSP430RegisterInfo.h"
19
20namespace llvm {
21
22class MSP430TargetMachine;
23
24class MSP430InstrInfo : public TargetInstrInfoImpl {
25  const MSP430RegisterInfo RI;
26  MSP430TargetMachine &TM;
27public:
28  explicit MSP430InstrInfo(MSP430TargetMachine &TM);
29
30  /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info.  As
31  /// such, whenever a client has an instance of instruction info, it should
32  /// always be able to get register info as well (through this method).
33  ///
34  virtual const TargetRegisterInfo &getRegisterInfo() const { return RI; }
35
36  bool copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
37                    unsigned DestReg, unsigned SrcReg,
38                    const TargetRegisterClass *DestRC,
39                    const TargetRegisterClass *SrcRC) const;
40
41  bool isMoveInstr(const MachineInstr& MI,
42                   unsigned &SrcReg, unsigned &DstReg,
43                   unsigned &SrcSubIdx, unsigned &DstSubIdx) const;
44
45  virtual void storeRegToStackSlot(MachineBasicBlock &MBB,
46                                   MachineBasicBlock::iterator MI,
47                                   unsigned SrcReg, bool isKill,
48                                   int FrameIndex,
49                                   const TargetRegisterClass *RC) const;
50  virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
51                                    MachineBasicBlock::iterator MI,
52                                    unsigned DestReg, int FrameIdx,
53                                    const TargetRegisterClass *RC) const;
54
55  virtual bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
56                                         MachineBasicBlock::iterator MI,
57                                 const std::vector<CalleeSavedInfo> &CSI) const;
58  virtual bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
59                                           MachineBasicBlock::iterator MI,
60                                 const std::vector<CalleeSavedInfo> &CSI) const;
61
62  virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
63                                MachineBasicBlock *FBB,
64                             const SmallVectorImpl<MachineOperand> &Cond) const;
65
66};
67
68}
69
70#endif
71