1 //===-- Thumb1InstrInfo.h - Thumb-1 Instruction Information -----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the Thumb-1 implementation of the TargetInstrInfo class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_ARM_THUMB1INSTRINFO_H
15 #define LLVM_LIB_TARGET_ARM_THUMB1INSTRINFO_H
17 #include "ARMBaseInstrInfo.h"
18 #include "ThumbRegisterInfo.h"
23 class Thumb1InstrInfo : public ARMBaseInstrInfo {
26 explicit Thumb1InstrInfo(const ARMSubtarget &STI);
28 /// Return the noop instruction to use for a noop.
29 void getNoop(MCInst &NopInst) const override;
31 // Return the non-pre/post incrementing version of 'Opc'. Return 0
32 // if there is not such an opcode.
33 unsigned getUnindexedOpcode(unsigned Opc) const override;
35 /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
36 /// such, whenever a client has an instance of instruction info, it should
37 /// always be able to get register info as well (through this method).
39 const ThumbRegisterInfo &getRegisterInfo() const override { return RI; }
41 void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
42 const DebugLoc &DL, unsigned DestReg, unsigned SrcReg,
43 bool KillSrc) const override;
44 void storeRegToStackSlot(MachineBasicBlock &MBB,
45 MachineBasicBlock::iterator MBBI,
46 unsigned SrcReg, bool isKill, int FrameIndex,
47 const TargetRegisterClass *RC,
48 const TargetRegisterInfo *TRI) const override;
50 void loadRegFromStackSlot(MachineBasicBlock &MBB,
51 MachineBasicBlock::iterator MBBI,
52 unsigned DestReg, int FrameIndex,
53 const TargetRegisterClass *RC,
54 const TargetRegisterInfo *TRI) const override;
56 bool canCopyGluedNodeDuringSchedule(SDNode *N) const override;
58 void expandLoadStackGuard(MachineBasicBlock::iterator MI) const override;