diff -r b9d85fcdf743 -r 9e321dcfa5b7 src/share/vm/runtime/globals.hpp
--- a/src/share/vm/runtime/globals.hpp	Wed Apr 07 10:35:56 2010 -0700
+++ b/src/share/vm/runtime/globals.hpp	Wed Apr 07 12:39:27 2010 -0700
@@ -2708,7 +2708,8 @@
   product(intx,  AllocatePrefetchStyle, 1,                                  \
           "0 = no prefetch, "                                               \
           "1 = prefetch instructions for each allocation, "                 \
-          "2 = use TLAB watermark to gate allocation prefetch")             \
+          "2 = use TLAB watermark to gate allocation prefetch, "            \
+          "3 = use BIS instruction on Sparc for allocation prefetch")       \
                                                                             \
   product(intx,  AllocatePrefetchDistance, -1,                              \
           "Distance to prefetch ahead of allocation pointer")               \