| //===- SPUInstrInfo.h - Cell SPU 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 CellSPU implementation of the TargetInstrInfo class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SPU_INSTRUCTIONINFO_H |
| #define SPU_INSTRUCTIONINFO_H |
| |
| #include "SPU.h" |
| #include "llvm/Target/TargetInstrInfo.h" |
| #include "SPURegisterInfo.h" |
| |
| namespace llvm { |
| //! Cell SPU instruction information class |
| class SPUInstrInfo : public TargetInstrInfoImpl { |
| SPUTargetMachine &TM; |
| const SPURegisterInfo RI; |
| public: |
| explicit SPUInstrInfo(SPUTargetMachine &tm); |
| |
| /// 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). |
| /// |
| virtual const SPURegisterInfo &getRegisterInfo() const { return RI; } |
| |
| /// getPointerRegClass - Return the register class to use to hold pointers. |
| /// This is used for addressing modes. |
| virtual const TargetRegisterClass *getPointerRegClass() const; |
| |
| // Return true if the instruction is a register to register move and |
| // leave the source and dest operands in the passed parameters. |
| // |
| virtual bool isMoveInstr(const MachineInstr& MI, |
| unsigned& sourceReg, |
| unsigned& destReg) const; |
| |
| unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const; |
| unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const; |
| |
| virtual void copyRegToReg(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| unsigned DestReg, unsigned SrcReg, |
| const TargetRegisterClass *DestRC, |
| const TargetRegisterClass *SrcRC) const; |
| |
| //! Store a register to a stack slot, based on its register class. |
| virtual void storeRegToStackSlot(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MBBI, |
| unsigned SrcReg, bool isKill, int FrameIndex, |
| const TargetRegisterClass *RC) const; |
| |
| //! Store a register to an address, based on its register class |
| virtual void storeRegToAddr(MachineFunction &MF, unsigned SrcReg, bool isKill, |
| SmallVectorImpl<MachineOperand> &Addr, |
| const TargetRegisterClass *RC, |
| SmallVectorImpl<MachineInstr*> &NewMIs) const; |
| |
| //! Load a register from a stack slot, based on its register class. |
| virtual void loadRegFromStackSlot(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MBBI, |
| unsigned DestReg, int FrameIndex, |
| const TargetRegisterClass *RC) const; |
| |
| //! Loqad a register from an address, based on its register class |
| virtual void loadRegFromAddr(MachineFunction &MF, unsigned DestReg, |
| SmallVectorImpl<MachineOperand> &Addr, |
| const TargetRegisterClass *RC, |
| SmallVectorImpl<MachineInstr*> &NewMIs) const; |
| |
| //! Fold spills into load/store instructions |
| virtual MachineInstr* foldMemoryOperand(MachineFunction &MF, |
| MachineInstr* MI, |
| SmallVectorImpl<unsigned> &Ops, |
| int FrameIndex) const; |
| |
| //! Fold any load/store to an operand |
| virtual MachineInstr* foldMemoryOperand(MachineFunction &MF, |
| MachineInstr* MI, |
| SmallVectorImpl<unsigned> &Ops, |
| MachineInstr* LoadMI) const { |
| return 0; |
| } |
| }; |
| } |
| |
| #endif |