--- old/src/share/vm/runtime/globals.hpp	2016-04-26 13:47:37.706707029 +0200
+++ new/src/share/vm/runtime/globals.hpp	2016-04-26 13:47:37.462707041 +0200
@@ -2901,10 +2901,10 @@
                                                                             \
   product(intx,  AllocatePrefetchStyle, 1,                                  \
           "0 = no prefetch, "                                               \
-          "1 = prefetch instructions for each allocation, "                 \
+          "1 = generate prefetch instructions for each allocation, "        \
           "2 = use TLAB watermark to gate allocation prefetch, "            \
-          "3 = use BIS instruction on Sparc for allocation prefetch")       \
-          range(0, 3)                                                       \
+          "3 = use BIS instruction for prefetch (only available on SPARC)") \
+          constraint(AllocatePrefetchStyleConstraintFunc, AfterErgo)        \
                                                                             \
   product(intx,  AllocatePrefetchDistance, -1,                              \
           "Distance to prefetch ahead of allocation pointer. "              \
@@ -2926,7 +2926,7 @@
           constraint(AllocatePrefetchStepSizeConstraintFunc,AfterMemoryInit)\
                                                                             \
   product(intx,  AllocatePrefetchInstr, 0,                                  \
-          "Prefetch instruction to prefetch ahead of allocation pointer")   \
+          "Select instruction to prefetch ahead of allocation pointer")     \
           constraint(AllocatePrefetchInstrConstraintFunc, AfterErgo)        \
                                                                             \
   /* deoptimization */                                                      \