llvm.org GIT mirror llvm / c30ebec lib / Target / ARM / Thumb1InstrInfo.h

Tree @c30ebec (Download .tar.gz)

Thumb1InstrInfo.h @c30ebecraw · history · blame

//===-- Thumb1InstrInfo.h - Thumb-1 Instruction Information -----*- C++ -*-===//
//                     The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// This file contains the Thumb-1 implementation of the TargetInstrInfo class.


#include "ARMBaseInstrInfo.h"
#include "ThumbRegisterInfo.h"

namespace llvm {
  class ARMSubtarget;

class Thumb1InstrInfo : public ARMBaseInstrInfo {
  ThumbRegisterInfo RI;
  explicit Thumb1InstrInfo(const ARMSubtarget &STI);

  /// getNoopForMachoTarget - Return the noop instruction to use for a noop.
  void getNoopForMachoTarget(MCInst &NopInst) const override;

  // Return the non-pre/post incrementing version of 'Opc'. Return 0
  // if there is not such an opcode.
  unsigned getUnindexedOpcode(unsigned Opc) const override;

  /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info.  As
  /// such, whenever a client has an instance of instruction info, it should
  /// always be able to get register info as well (through this method).
  const ThumbRegisterInfo &getRegisterInfo() const override { return RI; }

  void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
                   const DebugLoc &DL, unsigned DestReg, unsigned SrcReg,
                   bool KillSrc) const override;
  void storeRegToStackSlot(MachineBasicBlock &MBB,
                           MachineBasicBlock::iterator MBBI,
                           unsigned SrcReg, bool isKill, int FrameIndex,
                           const TargetRegisterClass *RC,
                           const TargetRegisterInfo *TRI) const override;

  void loadRegFromStackSlot(MachineBasicBlock &MBB,
                            MachineBasicBlock::iterator MBBI,
                            unsigned DestReg, int FrameIndex,
                            const TargetRegisterClass *RC,
                            const TargetRegisterInfo *TRI) const override;

  void expandLoadStackGuard(MachineBasicBlock::iterator MI) const override;