--- a/src/hotspot/cpu/ppc/globals_ppc.hpp	Thu Nov 08 11:22:28 2018 -0800
+++ b/src/hotspot/cpu/ppc/globals_ppc.hpp	Thu Nov 08 11:45:13 2018 -0800
@@ -69,8 +69,6 @@
 define_pd_global(bool, RewriteBytecodes,      true);
 define_pd_global(bool, RewriteFrequentPairs,  true);
 
-define_pd_global(bool, UseMembar,             true);
-
 define_pd_global(bool, PreserveFramePointer,  false);
 
 // GC Ergo Flags