diff --git a/lib/CodeGen/DwarfEHPrepare.cpp b/lib/CodeGen/DwarfEHPrepare.cpp
index 705e5d657c3..75b74d9a6c3 100644
--- a/lib/CodeGen/DwarfEHPrepare.cpp
+++ b/lib/CodeGen/DwarfEHPrepare.cpp
@@ -51,6 +51,11 @@ namespace {
 
     bool runOnFunction(Function &Fn) override;
 
+    bool doFinalization(Module &M) override {
+      RewindFunction = nullptr;
+      return false;
+    }
+
     void getAnalysisUsage(AnalysisUsage &AU) const override { }
 
     const char *getPassName() const override {