diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index b8d38dc229e..defd6ce6fbe 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -70,6 +70,7 @@ void TwoAddressInstructionPass::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<LiveVariables>();
   AU.addPreserved<LiveVariables>();
   AU.addPreservedID(PHIEliminationID);
+  AU.addPreservedID(BreakCriticalMachineEdgesID);
   MachineFunctionPass::getAnalysisUsage(AU);
 }