refactor some code, no functionality change

[oota-llvm.git] / lib / CodeGen / MachineInstr.cpp

diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 8c5da0272f0908f27738e605a8b6f412ff238d26..1c0d9cc4eb1c195d1efb270f2d6e6f5352d0b9d0 100644 (file)
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -169,17 +169,17 @@ bool MachineOperand::isIdenticalTo(const MachineOperand &Other) const {
   }
 }
 
-/// findRegisterUseOperand() - Returns the MachineOperand that is a use of
-/// the specific register or NULL if it is not found. It further tightening
+/// findRegisterUseOperandIdx() - Returns the MachineOperand that is a use of
+/// the specific register or -1 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){
+int MachineInstr::findRegisterUseOperandIdx(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)
       if (!isKill || MO.isKill())
-        return &MO;
+        return i;
   }
-  return NULL;
+  return -1;
 }
   
 /// findRegisterDefOperand() - Returns the MachineOperand that is a def of