- virtual const ARMRegisterInfo &getRegisterInfo() const { return RI; }
-
- void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
- unsigned DestReg, const MachineInstr *Orig) const;
-
- virtual MachineInstr *convertToThreeAddress(MachineFunction::iterator &MFI,
- MachineBasicBlock::iterator &MBBI,
- LiveVariables *LV) const;
-
- // Branch analysis.
- virtual bool AnalyzeBranch(MachineBasicBlock &MBB, MachineBasicBlock *&TBB,
- MachineBasicBlock *&FBB,
- SmallVectorImpl<MachineOperand> &Cond,
- bool AllowModify) const;
- virtual unsigned RemoveBranch(MachineBasicBlock &MBB) const;
- virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
- MachineBasicBlock *FBB,
- const SmallVectorImpl<MachineOperand> &Cond) const;
-
- virtual bool canFoldMemoryOperand(const MachineInstr *MI,
- const SmallVectorImpl<unsigned> &Ops) const;
-
- virtual bool BlockHasNoFallThrough(const MachineBasicBlock &MBB) const;
- virtual
- bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;
-
- // Predication support.
- virtual bool isPredicated(const MachineInstr *MI) const;
-
- ARMCC::CondCodes getPredicate(const MachineInstr *MI) const {
- int PIdx = MI->findFirstPredOperandIdx();
- return PIdx != -1 ? (ARMCC::CondCodes)MI->getOperand(PIdx).getImm()
- : ARMCC::AL;
- }
-
- virtual
- bool PredicateInstruction(MachineInstr *MI,
- const SmallVectorImpl<MachineOperand> &Pred) const;
-
- virtual
- bool SubsumesPredicate(const SmallVectorImpl<MachineOperand> &Pred1,
- const SmallVectorImpl<MachineOperand> &Pred2) const;
-
- virtual bool DefinesPredicate(MachineInstr *MI,
- std::vector<MachineOperand> &Pred) const;
-
- /// GetInstSize - Returns the size of the specified MachineInstr.
- ///
- virtual unsigned GetInstSizeInBytes(const MachineInstr* MI) const;
-};
-
-class ARMInstrInfo : public ARMBaseInstrInfo {
-public:
- explicit ARMInstrInfo(const ARMSubtarget &STI);
-
- /// Return true if the instruction is a register to register move and return
- /// the source and dest operands and their sub-register indices by reference.
- virtual bool isMoveInstr(const MachineInstr &MI,
- unsigned &SrcReg, unsigned &DstReg,
- unsigned &SrcSubIdx, unsigned &DstSubIdx) const;
-
- virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
- int &FrameIndex) const;
- virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
- int &FrameIndex) const;
-
- virtual bool copyRegToReg(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator I,
- unsigned DestReg, unsigned SrcReg,
- const TargetRegisterClass *DestRC,
- const TargetRegisterClass *SrcRC) const;
- virtual void storeRegToStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned SrcReg, bool isKill, int FrameIndex,
- const TargetRegisterClass *RC) const;
-
- virtual void storeRegToAddr(MachineFunction &MF, unsigned SrcReg, bool isKill,
- SmallVectorImpl<MachineOperand> &Addr,
- const TargetRegisterClass *RC,
- SmallVectorImpl<MachineInstr*> &NewMIs) const;
-
- virtual void loadRegFromStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned DestReg, int FrameIndex,
- const TargetRegisterClass *RC) const;
-
- virtual void loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
- SmallVectorImpl<MachineOperand> &Addr,
- const TargetRegisterClass *RC,
- SmallVectorImpl<MachineInstr*> &NewMIs) const;
-
- virtual MachineInstr* foldMemoryOperandImpl(MachineFunction &MF,
- MachineInstr* MI,
- const SmallVectorImpl<unsigned> &Ops,
- int FrameIndex) const;