--- old/src/share/vm/opto/c2_globals.hpp	2013-10-17 18:54:50.033766666 +0200
+++ new/src/share/vm/opto/c2_globals.hpp	2013-10-17 18:54:49.727644663 +0200
@@ -641,7 +641,10 @@
           "Enables intrinsification of various java.lang.Math functions")   \
                                                                             \
   product(bool, ReplaceInParentMaps, false,                                 \
-          "Propagate type improvements in callers of inlinee if possible")
+          "Propagate type improvements in callers of inlinee if possible")  \
+                                                                            \
+  diagnostic(bool, UseTypeSpeculation, true,                                \
+          "Speculatively propagate types from profiles")
 
 C2_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG)