1 //===- SPUInstrInfo.h - Cell SPU Instruction Information --------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the CellSPU implementation of the TargetInstrInfo class.
12 //===----------------------------------------------------------------------===//
14 #ifndef SPU_INSTRUCTIONINFO_H
15 #define SPU_INSTRUCTIONINFO_H
18 #include "llvm/Target/TargetInstrInfo.h"
19 #include "SPURegisterInfo.h"
22 //! Cell SPU instruction information class
23 class SPUInstrInfo : public TargetInstrInfoImpl {
25 const SPURegisterInfo RI;
27 SPUInstrInfo(SPUTargetMachine &tm);
29 /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info. As
30 /// such, whenever a client has an instance of instruction info, it should
31 /// always be able to get register info as well (through this method).
33 virtual const MRegisterInfo &getRegisterInfo() const { return RI; }
35 /// getPointerRegClass - Return the register class to use to hold pointers.
36 /// This is used for addressing modes.
37 virtual const TargetRegisterClass *getPointerRegClass() const;
39 // Return true if the instruction is a register to register move and
40 // leave the source and dest operands in the passed parameters.
42 virtual bool isMoveInstr(const MachineInstr& MI,
44 unsigned& destReg) const;
46 unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const;
47 unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const;
49 virtual void copyRegToReg(MachineBasicBlock &MBB,
50 MachineBasicBlock::iterator MI,
51 unsigned DestReg, unsigned SrcReg,
52 const TargetRegisterClass *DestRC,
53 const TargetRegisterClass *SrcRC) const;