diff --git a/lib/CodeGen/LiveDebugValues.cpp b/lib/CodeGen/LiveDebugValues.cpp
index 423afba687c..1297273ee5b 100644
--- a/lib/CodeGen/LiveDebugValues.cpp
+++ b/lib/CodeGen/LiveDebugValues.cpp
@@ -247,6 +247,7 @@ LiveDebugValues::LiveDebugValues() : MachineFunctionPass(ID) {
 /// Tell the pass manager which passes we depend on and what information we
 /// preserve.
 void LiveDebugValues::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesCFG();
   MachineFunctionPass::getAnalysisUsage(AU);
 }