Line data    Source code

       1             : //===-- Thumb1InstrInfo.h - Thumb-1 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-1 implementation of the TargetInstrInfo class.
      11             : //
      12             : //===----------------------------------------------------------------------===//
      13             : 
      14             : #ifndef LLVM_LIB_TARGET_ARM_THUMB1INSTRINFO_H
      15             : #define LLVM_LIB_TARGET_ARM_THUMB1INSTRINFO_H
      16             : 
      17             : #include "ARMBaseInstrInfo.h"
      18             : #include "ThumbRegisterInfo.h"
      19             : 
      20             : namespace llvm {
      21             :   class ARMSubtarget;
      22             : 
      23             : class Thumb1InstrInfo : public ARMBaseInstrInfo {
      24             :   ThumbRegisterInfo RI;
      25             : public:
      26             :   explicit Thumb1InstrInfo(const ARMSubtarget &STI);
      27             : 
      28             :   /// Return the noop instruction to use for a noop.
      29             :   void getNoop(MCInst &NopInst) const override;
      30             : 
      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;
      34             : 
      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).
      38             :   ///
      39      258299 :   const ThumbRegisterInfo &getRegisterInfo() const override { return RI; }
      40             : 
      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;
      49             : 
      50             :   void loadRegFromStackSlot(MachineBasicBlock &MBB,
      51             :                             MachineBasicBlock::iterator MBBI,
      52             :                             unsigned DestReg, int FrameIndex,
      53             :                             const TargetRegisterClass *RC,
      54             :                             const TargetRegisterInfo *TRI) const override;
      55             : 
      56             :   bool canCopyGluedNodeDuringSchedule(SDNode *N) const override;
      57             : private:
      58             :   void expandLoadStackGuard(MachineBasicBlock::iterator MI) const override;
      59             : };
      60             : }
      61             : 
      62             : #endif