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Add preservation of SlotIndexes to PHIElimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175596 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -116,6 +116,7 @@ INITIALIZE_PASS_END(PHIElimination, "phi-node-elimination",
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void PHIElimination::getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addPreserved<LiveVariables>();
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AU.addPreserved<SlotIndexes>();
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AU.addPreserved<LiveIntervals>();
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AU.addPreserved<MachineDominatorTree>();
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AU.addPreserved<MachineLoopInfo>();
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