--- old/src/hotspot/cpu/zero/globals_zero.hpp	2019-03-11 14:25:01.486356050 +0100
+++ new/src/hotspot/cpu/zero/globals_zero.hpp	2019-03-11 14:25:01.266356053 +0100
@@ -76,6 +76,9 @@
 
 define_pd_global(bool, PreserveFramePointer, false);
 
+define_pd_global(bool, ValueTypePassFieldsAsArgs, false);
+define_pd_global(bool, ValueTypeReturnedAsFields, false);
+
 // No performance work done here yet.
 define_pd_global(bool, CompactStrings, false);