--- old/src/share/vm/opto/c2_globals.hpp	2016-05-12 00:29:45.194767244 +0300
+++ new/src/share/vm/opto/c2_globals.hpp	2016-05-12 00:29:45.058767774 +0300
@@ -63,10 +63,10 @@
 
 #define C2_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, range, constraint) \
                                                                             \
-  develop(bool, StressLCM, false,                                           \
+  diagnostic(bool, StressLCM, false,                                        \
           "Randomize instruction scheduling in LCM")                        \
                                                                             \
-  develop(bool, StressGCM, false,                                           \
+  diagnostic(bool, StressGCM, false,                                        \
           "Randomize instruction scheduling in GCM")                        \
                                                                             \
   develop(intx, OptoPrologueNops, 0,                                        \