Index: COFF/MinGW.cpp
===================================================================
--- COFF/MinGW.cpp
+++ COFF/MinGW.cpp
@@ -93,6 +93,8 @@
     return false;
   if (ExcludeSymbols.count(Sym->getName()))
     return false;
+  if (!Sym->getFile())
+    return false;
   StringRef LibName = sys::path::filename(Sym->getFile()->ParentName);
   // Drop the file extension.
   LibName = LibName.substr(0, LibName.rfind('.'));