--- a/src/hotspot/cpu/ppc/globals_ppc.hpp	Thu Oct 05 10:55:34 2017 +0200
+++ b/src/hotspot/cpu/ppc/globals_ppc.hpp	Thu Oct 05 12:56:42 2017 +0200
@@ -103,6 +103,9 @@
           "CPU Version: x for PowerX. Currently recognizes Power5 to "      \
           "Power8. Default is 0. Newer CPUs will be recognized as Power8.") \
                                                                             \
+  product(bool, SuperwordUseVSX, false,                                     \
+          "Use Power8 VSX instructions for superword optimization.")        \
+                                                                            \
   /* Reoptimize code-sequences of calls at runtime, e.g. replace an */      \
   /* indirect call by a direct call.                                */      \
   product(bool, ReoptimizeCallSequences, true,                              \