Adding RUN lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17527 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/CBackend/2003-10-28-CastToPtrToStruct.ll b/test/CodeGen/CBackend/2003-10-28-CastToPtrToStruct.ll
index f3a5775..ae0679e 100644
--- a/test/CodeGen/CBackend/2003-10-28-CastToPtrToStruct.ll
+++ b/test/CodeGen/CBackend/2003-10-28-CastToPtrToStruct.ll
@@ -1,3 +1,5 @@
+; RUN: llvm-as < %s | llc -march=c
+
 ; reduced from DOOM.
 %union._XEvent = type { int }
 %.X_event_9 = global %union._XEvent zeroinitializer