Thumb2InstrInfo.h revision 34dcc6fadca0a1117cdbd0e9b35c991a55b6e556 
1//===- Thumb2InstrInfo.h - Thumb-2 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 Thumb-2 implementation of the TargetInstrInfo class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef THUMB2INSTRUCTIONINFO_H
15#define THUMB2INSTRUCTIONINFO_H
16
17#include "llvm/Target/TargetInstrInfo.h"
18#include "ARM.h"
19#include "ARMInstrInfo.h"
20#include "Thumb2RegisterInfo.h"
21
22namespace llvm {
23  class ARMSubtarget;
24
25class Thumb2InstrInfo : public ARMBaseInstrInfo {
26  Thumb2RegisterInfo RI;
27public:
28  explicit Thumb2InstrInfo(const ARMSubtarget &STI);
29
30  // Return the non-pre/post incrementing version of 'Opc'. Return 0
31  // if there is not such an opcode.
32  unsigned getUnindexedOpcode(unsigned Opc) const;
33
34  bool copyRegToReg(MachineBasicBlock &MBB,
35                    MachineBasicBlock::iterator I,
36                    unsigned DestReg, unsigned SrcReg,
37                    const TargetRegisterClass *DestRC,
38                    const TargetRegisterClass *SrcRC,
39                    DebugLoc DL) const;
40
41  void storeRegToStackSlot(MachineBasicBlock &MBB,
42                           MachineBasicBlock::iterator MBBI,
43                           unsigned SrcReg, bool isKill, int FrameIndex,
44                           const TargetRegisterClass *RC,
45                           const TargetRegisterInfo *TRI) const;
46
47  void loadRegFromStackSlot(MachineBasicBlock &MBB,
48                            MachineBasicBlock::iterator MBBI,
49                            unsigned DestReg, int FrameIndex,
50                            const TargetRegisterClass *RC,
51                            const TargetRegisterInfo *TRI) const;
52
53  /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info.  As
54  /// such, whenever a client has an instance of instruction info, it should
55  /// always be able to get register info as well (through this method).
56  ///
57  const Thumb2RegisterInfo &getRegisterInfo() const { return RI; }
58};
59}
60
61#endif // THUMB2INSTRUCTIONINFO_H
62