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-rw-r--r--lib/CodeGen/PHIElimination.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/PHIElimination.cpp b/lib/CodeGen/PHIElimination.cpp
index abad5c1..37e2ee1 100644
--- a/lib/CodeGen/PHIElimination.cpp
+++ b/lib/CodeGen/PHIElimination.cpp
@@ -116,6 +116,7 @@ INITIALIZE_PASS_END(PHIElimination, "phi-node-elimination",
void PHIElimination::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addPreserved<LiveVariables>();
+ AU.addPreserved<SlotIndexes>();
AU.addPreserved<LiveIntervals>();
AU.addPreserved<MachineDominatorTree>();
AU.addPreserved<MachineLoopInfo>();