diff -r 1820670a3362 -r 46e6bbecd9e5 hotspot/src/share/vm/opto/c2_globals.hpp
--- a/hotspot/src/share/vm/opto/c2_globals.hpp	Wed Oct 23 10:00:39 2013 +0200
+++ b/hotspot/src/share/vm/opto/c2_globals.hpp	Wed Oct 23 12:40:23 2013 +0200
@@ -641,7 +641,10 @@
           "Enables intrinsification of various java.lang.Math functions")   \
                                                                             \
   experimental(bool, ReplaceInParentMaps, false,                            \
-          "Propagate type improvements in callers of inlinee if possible")
+          "Propagate type improvements in callers of inlinee if possible")  \
+                                                                            \
+  experimental(bool, UseTypeSpeculation, false,                             \
+          "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)