--- old/src/cpu/x86/vm/globals_x86.hpp	2016-07-13 16:44:57.604461500 -0700
+++ new/src/cpu/x86/vm/globals_x86.hpp	2016-07-13 16:44:57.279461500 -0700
@@ -121,6 +121,9 @@
   product(bool, UseCLMUL, false,                                            \
           "Control whether CLMUL instructions can be used on x86/x64")      \
                                                                             \
+  product(bool, UseFMA, false,                                              \
+          "Control whether FMA instructions can be used on x86/x64")        \
+                                                                            \
   diagnostic(bool, UseIncDec, true,                                         \
           "Use INC, DEC instructions on x86")                               \
                                                                             \