--- old/src/share/vm/c1/c1_globals.hpp	2016-03-22 16:54:12.775256726 +0100
+++ new/src/share/vm/c1/c1_globals.hpp	2016-03-22 16:54:12.704257769 +0100
@@ -169,6 +169,13 @@
   develop(bool, EliminateFieldAccess, true,                                 \
           "Optimize field loads and stores")                                \
                                                                             \
+  develop_pd(intx, InitArrayShortSize,                                      \
+          "Threshold small size (in bytes) for clearing arrays. "           \
+          "Anything this size or smaller may get converted to discrete "    \
+          "scalar stores.")                                                 \
+          range(0, max_intx)                                                \
+          constraint(InitArrayShortSizeConstraintFunc, AfterErgo)           \
+                                                                            \
   develop(bool, InlineMethodsWithExceptionHandlers, true,                   \
           "Inline methods containing exception handlers "                   \
           "(NOTE: does not work with current backend)")                     \