diff -r bdd155477289 -r e2722a66aba7 src/share/vm/opto/c2_globals.hpp
--- a/src/share/vm/opto/c2_globals.hpp	Thu Aug 22 09:39:54 2013 -0700
+++ b/src/share/vm/opto/c2_globals.hpp	Thu Sep 05 11:04:39 2013 -0700
@@ -185,6 +185,9 @@
   product_pd(intx,  LoopUnrollLimit,                                        \
           "Unroll loop bodies with node count less than this")              \
                                                                             \
+  product(intx,  LoopMaxUnroll, 16,                                         \
+          "Maximum number of unrolls for main loop")                        \
+                                                                            \
   product(intx,  LoopUnrollMin, 4,                                          \
           "Minimum number of unroll loop bodies before checking progress"   \
           "of rounds of unroll,optimize,..")                                \