--- old/src/share/vm/opto/compile.hpp	2013-11-03 16:17:05.000000000 -0800
+++ new/src/share/vm/opto/compile.hpp	2013-11-03 16:17:05.000000000 -0800
@@ -1148,6 +1148,9 @@
   // graph is strongly connected from root in both directions.
   void verify_graph_edges(bool no_dead_code = false) PRODUCT_RETURN;
 
+  // Verify GC barrier patterns
+  void verify_barriers() PRODUCT_RETURN;
+
   // End-of-run dumps.
   static void print_statistics() PRODUCT_RETURN;