diff -r af8765fafc07 -r 61bfc8995bb3 hotspot/src/cpu/x86/vm/globals_x86.hpp
--- a/hotspot/src/cpu/x86/vm/globals_x86.hpp	Tue Jul 02 07:51:31 2013 +0200
+++ b/hotspot/src/cpu/x86/vm/globals_x86.hpp	Tue Jul 02 20:42:12 2013 -0400
@@ -96,6 +96,9 @@
   product(intx, UseAVX, 99,                                                 \
           "Highest supported AVX instructions set on x86/x64")              \
                                                                             \
+  product(bool, UseCLMUL, false,                                            \
+          "Control whether CLMUL instructions can be used on x86/x64")      \
+                                                                            \
   diagnostic(bool, UseIncDec, true,                                         \
           "Use INC, DEC instructions on x86")                               \
                                                                             \