initializeSimpleRegisterCoalescingPass(*PassRegistry::getPassRegistry());
}
- struct InstrSlots {
- enum {
- LOAD = 0,
- USE = 1,
- DEF = 2,
- STORE = 3,
- NUM = 4
- };
- };
-
virtual void getAnalysisUsage(AnalysisUsage &AU) const;
virtual void releaseMemory();
unsigned DstReg, unsigned DstSubIdx,
MachineInstr *CopyMI);
+ /// shouldJoinPhys - Return true if a physreg copy should be joined.
+ bool shouldJoinPhys(CoalescerPair &CP);
+
/// isWinToJoinCrossClass - Return true if it's profitable to coalesce
/// two virtual registers from different register classes.
bool isWinToJoinCrossClass(unsigned SrcReg,
/// cycles Start and End or NULL if there are no uses.
MachineOperand *lastRegisterUse(SlotIndex Start, SlotIndex End,
unsigned Reg, SlotIndex &LastUseIdx) const;
+
+ /// markAsJoined - Remember that CopyMI has already been joined.
+ void markAsJoined(MachineInstr *CopyMI);
};
} // End llvm namespace