diff -r ac824485668b -r c5f050e1f982 hotspot/src/cpu/x86/vm/globals_x86.hpp
--- a/hotspot/src/cpu/x86/vm/globals_x86.hpp	Wed Dec 09 00:30:32 2015 +0300
+++ b/hotspot/src/cpu/x86/vm/globals_x86.hpp	Wed Dec 09 11:06:39 2015 +0100
@@ -175,9 +175,6 @@
           "Use RTM Xend instead of Xabort when lock busy")                  \
                                                                             \
   /* assembler */                                                           \
-  product(bool, Use486InstrsOnly, false,                                    \
-          "Use 80486 Compliant instruction subset")                         \
-                                                                            \
   product(bool, UseCountLeadingZerosInstruction, false,                     \
           "Use count leading zeros instruction")                            \
                                                                             \