diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index d65270e..c775c38 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -3050,6 +3050,7 @@
   DbgVariableToDbgInstMap.clear();
   DeleteContainerSeconds(DbgScopeMap);
   InsnsNeedsLabelAfter.clear();
+  RegClobberInsn.clear();
   ConcreteScopes.clear();
   DeleteContainerSeconds(AbstractScopes);
   AbstractScopesList.clear();