}
/// findRegisterUseOperand() - Returns the MachineOperand that is a use of
- /// the specific register or NULL if it is not found.
- MachineOperand *findRegisterUseOperand(unsigned Reg);
+ /// the specific register or NULL if it is not found. It further tightening
+ /// the search criteria to a use that kills the register if isKill is true.
+ MachineOperand *findRegisterUseOperand(unsigned Reg, bool isKill = false);
/// findRegisterDefOperand() - Returns the MachineOperand that is a def of
/// the specific register or NULL if it is not found.
}
/// findRegisterUseOperand() - Returns the MachineOperand that is a use of
-/// the specific register or NULL if it is not found.
-MachineOperand *MachineInstr::findRegisterUseOperand(unsigned Reg) {
+/// the specific register or NULL if it is not found. It further tightening
+/// the search criteria to a use that kills the register if isKill is true.
+MachineOperand *MachineInstr::findRegisterUseOperand(unsigned Reg, bool isKill){
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
MachineOperand &MO = getOperand(i);
if (MO.isReg() && MO.isUse() && MO.getReg() == Reg)
- return &MO;
+ if (!isKill || MO.isKill())
+ return &MO;
}
return NULL;
}