fix another GCC bootstrap problem, which manifested as things
like:
foo.s:2412:non-relocatable subtraction expression, "_gomp_tls_key" minus "L1$pb"



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81596 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp b/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
index 3cdb83f..9b2b71b 100644
--- a/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
+++ b/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
@@ -91,7 +91,7 @@
       Mang->getNameWithPrefix(Name, GV, false);
       StubSym = OutContext.GetOrCreateSymbol(Name.str());
     }
-    break;
+    return Sym;
   }
   case X86II::MO_DARWIN_STUB: {
     Name += "$stub";