Correctly update LiveVariables when an instruction changes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12561 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp
index 10c2158..1b43ff3 100644
--- a/lib/CodeGen/LiveVariables.cpp
+++ b/lib/CodeGen/LiveVariables.cpp
@@ -326,14 +326,14 @@
MachineInstr *NewMI) {
// If the instruction defines any virtual registers, update the VarInfo for
// the instruction.
- for (unsigned i = 0, e = NewMI->getNumOperands(); i != e; ++i) {
- MachineOperand &MO = NewMI->getOperand(i);
+ for (unsigned i = 0, e = OldMI->getNumOperands(); i != e; ++i) {
+ MachineOperand &MO = OldMI->getOperand(i);
if (MO.isRegister() && MO.isDef() && MO.getReg() &&
MRegisterInfo::isVirtualRegister(MO.getReg())) {
unsigned Reg = MO.getReg();
VarInfo &VI = getVarInfo(Reg);
if (VI.DefInst == OldMI)
- VI.DefInst = NewMI;
+ VI.DefInst = NewMI;
}
}