-/// TargetInstrInfoImpl - This is the default implementation of
-/// TargetInstrInfo, which just provides a couple of default implementations
-/// for various methods. This separated out because it is implemented in
-/// libcodegen, not in libtarget.
-class TargetInstrInfoImpl : public TargetInstrInfo {
-protected:
- TargetInstrInfoImpl(int CallFrameSetupOpcode = -1,
- int CallFrameDestroyOpcode = -1)
- : TargetInstrInfo(CallFrameSetupOpcode, CallFrameDestroyOpcode) {}
-public:
- virtual void ReplaceTailWithBranchTo(MachineBasicBlock::iterator OldInst,
- MachineBasicBlock *NewDest) const;
- virtual MachineInstr *commuteInstruction(MachineInstr *MI,
- bool NewMI = false) const;
- virtual bool findCommutedOpIndices(MachineInstr *MI, unsigned &SrcOpIdx1,
- unsigned &SrcOpIdx2) const;
- virtual bool canFoldMemoryOperand(const MachineInstr *MI,
- const SmallVectorImpl<unsigned> &Ops) const;
- virtual bool hasLoadFromStackSlot(const MachineInstr *MI,
- const MachineMemOperand *&MMO,
- int &FrameIndex) const;
- virtual bool hasStoreToStackSlot(const MachineInstr *MI,
- const MachineMemOperand *&MMO,
- int &FrameIndex) const;
- virtual bool isUnpredicatedTerminator(const MachineInstr *MI) const;
- virtual bool PredicateInstruction(MachineInstr *MI,
- const SmallVectorImpl<MachineOperand> &Pred) const;
- virtual void reMaterialize(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator MI,
- unsigned DestReg, unsigned SubReg,
- const MachineInstr *Orig,
- const TargetRegisterInfo &TRI) const;
- virtual MachineInstr *duplicate(MachineInstr *Orig,
- MachineFunction &MF) const;
- virtual bool produceSameValue(const MachineInstr *MI0,
- const MachineInstr *MI1,
- const MachineRegisterInfo *MRI) const;
- virtual bool isSchedulingBoundary(const MachineInstr *MI,
- const MachineBasicBlock *MBB,
- const MachineFunction &MF) const;
-
- virtual int getOperandLatency(const InstrItineraryData *ItinData,
- SDNode *DefNode, unsigned DefIdx,
- SDNode *UseNode, unsigned UseIdx) const;
-
- virtual int getInstrLatency(const InstrItineraryData *ItinData,
- SDNode *Node) const;
-
- virtual unsigned getNumMicroOps(const InstrItineraryData *ItinData,
- const MachineInstr *MI) const;
-
- virtual unsigned getInstrLatency(const InstrItineraryData *ItinData,
- const MachineInstr *MI,
- unsigned *PredCost = 0) const;
-
- virtual
- bool hasLowDefLatency(const InstrItineraryData *ItinData,
- const MachineInstr *DefMI, unsigned DefIdx) const;
-
- virtual int getOperandLatency(const InstrItineraryData *ItinData,
- const MachineInstr *DefMI, unsigned DefIdx,
- const MachineInstr *UseMI,
- unsigned UseIdx) const;
-
- bool usePreRAHazardRecognizer() const;
-
- virtual ScheduleHazardRecognizer *
- CreateTargetHazardRecognizer(const TargetMachine*, const ScheduleDAG*) const;
-
- virtual ScheduleHazardRecognizer *
- CreateTargetMIHazardRecognizer(const InstrItineraryData*,
- const ScheduleDAG*) const;
-
- virtual ScheduleHazardRecognizer *
- CreateTargetPostRAHazardRecognizer(const InstrItineraryData*,
- const ScheduleDAG*) const;
-};
-