Adding RUN lines.

llvm-svn: 17527
diff --git a/llvm/test/Regression/CodeGen/CBackend/2003-05-13-VarArgFunction.ll b/llvm/test/Regression/CodeGen/CBackend/2003-05-13-VarArgFunction.ll
index 1b2c2b8..45638a0 100644
--- a/llvm/test/Regression/CodeGen/CBackend/2003-05-13-VarArgFunction.ll
+++ b/llvm/test/Regression/CodeGen/CBackend/2003-05-13-VarArgFunction.ll
@@ -1,3 +1,5 @@
+; RUN: llvm-as < %s | llc -march=c
+
 ; This testcase breaks the C backend, because gcc doesn't like (...) functions
 ; with no arguments at all.