Adding RUN lines.

llvm-svn: 17532
diff --git a/llvm/test/Regression/CFrontend/2002-03-12-StructInitializer.c b/llvm/test/Regression/CFrontend/2002-03-12-StructInitializer.c
index de2d847..cf2ba4e 100644
--- a/llvm/test/Regression/CFrontend/2002-03-12-StructInitializer.c
+++ b/llvm/test/Regression/CFrontend/2002-03-12-StructInitializer.c
@@ -1,3 +1,5 @@
+// RUN: %llvmgcc -S %s -o - | llvm-as -f -o /dev/null
+
 /* GCC was not emitting string constants of the correct length when
  * embedded into a structure field like this.  It thought the strlength
  * was -1.