/// Code Generation virtual methods...
int storeRegToStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator &MBBI,
+ MachineBasicBlock::iterator MI,
unsigned SrcReg, int FrameIndex,
const TargetRegisterClass *RC) const;
int loadRegFromStackSlot(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator &MBBI,
+ MachineBasicBlock::iterator MI,
unsigned DestReg, int FrameIndex,
const TargetRegisterClass *RC) const;
- int copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI,
+ int copyRegToReg(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const;
- int eliminateCallFramePseudoInstr(MachineFunction &MF,
- MachineBasicBlock &MBB,
- MachineBasicBlock::iterator &I) const;
+ /// foldMemoryOperand - If this target supports it, fold a load or store of
+ /// the specified stack slot into the specified machine instruction for the
+ /// specified operand. If this is possible, the target should perform the
+ /// folding and return true, otherwise it should return false. If it folds
+ /// the instruction, it is likely that the MachineInstruction the iterator
+ /// references has been changed.
+ virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
+ unsigned OpNum,
+ int FrameIndex) const;
- int eliminateFrameIndex(MachineFunction &MF,
- MachineBasicBlock::iterator &II) const;
- int processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
+ void eliminateCallFramePseudoInstr(MachineFunction &MF,
+ MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI) const;
- int emitPrologue(MachineFunction &MF) const;
- int emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+ void eliminateFrameIndex(MachineFunction &MF,
+ MachineBasicBlock::iterator MI) const;
+
+ void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
+
+ void emitPrologue(MachineFunction &MF) const;
+ void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
};
} // End llvm namespace