--- old/src/share/vm/opto/c2_globals.hpp	2015-11-25 15:47:03.685768449 +0100
+++ new/src/share/vm/opto/c2_globals.hpp	2015-11-25 15:47:03.537768456 +0100
@@ -744,7 +744,10 @@
           range(0, max_intx)                                                \
                                                                             \
   develop(bool, StressArrayCopyMacroNode, false,                            \
-          "Perform ArrayCopy load/store replacement during IGVN only")
+          "Perform ArrayCopy load/store replacement during IGVN only")      \
+                                                                            \
+  develop(bool, RenumberLiveNodes, true,                                    \
+          "Renumber live nodes")                                            \
 
 C2_FLAGS(DECLARE_DEVELOPER_FLAG, \
          DECLARE_PD_DEVELOPER_FLAG, \