MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const;
+
+ void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
+ unsigned DestReg, const MachineInstr *Orig) const;
/// foldMemoryOperand - If this target supports it, fold a load or store of
/// the specified stack slot into the specified machine instruction for the
/// length of this list match the getCalleeSavedRegs() list.
const TargetRegisterClass* const* getCalleeSavedRegClasses() const;
+ /// getReservedRegs - Returns a bitset indexed by physical register number
+ /// indicating if a register is a special register that has particular uses and
+ /// should be considered unavailable at all times, e.g. SP, RA. This is used by
+ /// register scavenger to determine what registers are free.
+ BitVector getReservedRegs(const MachineFunction &MF) const;
+
bool hasFP(const MachineFunction &MF) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI) const;
- void eliminateFrameIndex(MachineBasicBlock::iterator MI) const;
+ void eliminateFrameIndex(MachineBasicBlock::iterator MI,
+ int SPAdj, RegScavenger *RS = NULL) const;
void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
// Debug information queries.
unsigned getRARegister() const;
unsigned getFrameRegister(MachineFunction &MF) const;
+ void getInitialFrameState(std::vector<MachineMove> &Moves) const;
+
+ // Exception handling queries.
+ unsigned getEHExceptionRegister() const;
+ unsigned getEHHandlerRegister() const;
};
// getX86SubSuperRegister - X86 utility function. It returns the sub or super