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-rw-r--r--lib/CodeGen/LiveIntervalAnalysis.cpp3
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 8b181150f6..6521d97805 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -1058,10 +1058,9 @@ bool LiveIntervals::JoinCopy(MachineInstr *CopyMI,
for (const unsigned *AS = mri_->getAliasSet(repDstReg); *AS; ++AS)
getInterval(*AS).MergeInClobberRanges(SrcInt);
} else {
- // Merge UsedBlocks info if the destination is a virtual register.
+ // Merge use info if the destination is a virtual register.
LiveVariables::VarInfo& dVI = lv_->getVarInfo(repDstReg);
LiveVariables::VarInfo& sVI = lv_->getVarInfo(repSrcReg);
- dVI.UsedBlocks |= sVI.UsedBlocks;
dVI.NumUses += sVI.NumUses;
}