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-rw-r--r--lib/CodeGen/ProcessImplicitDefs.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/ProcessImplicitDefs.cpp b/lib/CodeGen/ProcessImplicitDefs.cpp
index 48567a0fc7..23b78c7438 100644
--- a/lib/CodeGen/ProcessImplicitDefs.cpp
+++ b/lib/CodeGen/ProcessImplicitDefs.cpp
@@ -209,6 +209,10 @@ bool ProcessImplicitDefs::runOnMachineFunction(MachineFunction &fn) {
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
if (tii_->isMoveInstr(*RMI, SrcReg, DstReg, SrcSubReg, DstSubReg) &&
Reg == SrcReg) {
+ if (RMO.isKill()) {
+ LiveVariables::VarInfo& vi = lv_->getVarInfo(Reg);
+ vi.removeKill(RMI);
+ }
RMI->setDesc(tii_->get(TargetInstrInfo::IMPLICIT_DEF));
for (int j = RMI->getNumOperands() - 1, ee = 0; j > ee; --j)
RMI->RemoveOperand(j);