Adding RUN lines.

llvm-svn: 17529
diff --git a/llvm/test/Regression/C++Frontend/2003-08-31-StructLayout.cpp b/llvm/test/Regression/C++Frontend/2003-08-31-StructLayout.cpp
index 78d8d33..21d504c 100644
--- a/llvm/test/Regression/C++Frontend/2003-08-31-StructLayout.cpp
+++ b/llvm/test/Regression/C++Frontend/2003-08-31-StructLayout.cpp
@@ -1,3 +1,5 @@
+// RUN: %llvmgxx -S %s -o - | llvm-as -f -o /dev/null
+
 // There is a HOLE in the derived2 object due to not wanting to place the two 
 // baseclass instances at the same offset!