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path: root/lib/CodeGen/TwoAddressInstructionPass.cpp
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-rw-r--r--lib/CodeGen/TwoAddressInstructionPass.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index dd71bec7eb..8f0c473d48 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -69,6 +69,8 @@ const PassInfo *llvm::TwoAddressInstructionPassID = X.getPassInfo();
void TwoAddressInstructionPass::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<LiveVariables>();
AU.addPreserved<LiveVariables>();
+ AU.addPreservedID(MachineLoopInfoID);
+ AU.addPreservedID(MachineDominatorsID);
AU.addPreservedID(PHIEliminationID);
MachineFunctionPass::getAnalysisUsage(AU);
}