Reorder includes to match coding standards. Fix an issue or two exposed by that.
[oota-llvm.git] / lib / Target / ARM / Thumb2InstrInfo.h
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 "ARM.h"
18 #include "ARMInstrInfo.h"
19 #include "Thumb2RegisterInfo.h"
20 #include "llvm/Target/TargetInstrInfo.h"
21
22 namespace llvm {
23 class ARMSubtarget;
24 class ScheduleHazardRecognizer;
25
26 class Thumb2InstrInfo : public ARMBaseInstrInfo {
27   Thumb2RegisterInfo RI;
28 public:
29   explicit Thumb2InstrInfo(const ARMSubtarget &STI);
30
31   /// getNoopForMachoTarget - Return the noop instruction to use for a noop.
32   void getNoopForMachoTarget(MCInst &NopInst) const;
33
34   // Return the non-pre/post incrementing version of 'Opc'. Return 0
35   // if there is not such an opcode.
36   unsigned getUnindexedOpcode(unsigned Opc) const;
37
38   void ReplaceTailWithBranchTo(MachineBasicBlock::iterator Tail,
39                                MachineBasicBlock *NewDest) const;
40
41   bool isLegalToSplitMBBAt(MachineBasicBlock &MBB,
42                            MachineBasicBlock::iterator MBBI) const;
43
44   void copyPhysReg(MachineBasicBlock &MBB,
45                    MachineBasicBlock::iterator I, DebugLoc DL,
46                    unsigned DestReg, unsigned SrcReg,
47                    bool KillSrc) const;
48
49   void storeRegToStackSlot(MachineBasicBlock &MBB,
50                            MachineBasicBlock::iterator MBBI,
51                            unsigned SrcReg, bool isKill, int FrameIndex,
52                            const TargetRegisterClass *RC,
53                            const TargetRegisterInfo *TRI) const;
54
55   void loadRegFromStackSlot(MachineBasicBlock &MBB,
56                             MachineBasicBlock::iterator MBBI,
57                             unsigned DestReg, int FrameIndex,
58                             const TargetRegisterClass *RC,
59                             const TargetRegisterInfo *TRI) const;
60
61   /// scheduleTwoAddrSource - Schedule the copy / re-mat of the source of the
62   /// two-addrss instruction inserted by two-address pass.
63   void scheduleTwoAddrSource(MachineInstr *SrcMI, MachineInstr *UseMI,
64                              const TargetRegisterInfo &TRI) const;
65
66   /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info.  As
67   /// such, whenever a client has an instance of instruction info, it should
68   /// always be able to get register info as well (through this method).
69   ///
70   const Thumb2RegisterInfo &getRegisterInfo() const { return RI; }
71 };
72
73 /// getITInstrPredicate - Valid only in Thumb2 mode. This function is identical
74 /// to llvm::getInstrPredicate except it returns AL for conditional branch
75 /// instructions which are "predicated", but are not in IT blocks.
76 ARMCC::CondCodes getITInstrPredicate(const MachineInstr *MI, unsigned &PredReg);
77
78
79 }
80
81 #endif // THUMB2INSTRUCTIONINFO_H