diff a/src/hotspot/cpu/s390/globals_s390.hpp b/src/hotspot/cpu/s390/globals_s390.hpp
--- a/src/hotspot/cpu/s390/globals_s390.hpp
+++ b/src/hotspot/cpu/s390/globals_s390.hpp
@@ -76,10 +76,13 @@
 define_pd_global(bool, CompactStrings, true);
 
 // 8146801 (Short Array Allocation): No performance work done here yet.
 define_pd_global(intx, InitArrayShortSize, 1*BytesPerLong);
 
+define_pd_global(bool, InlineTypePassFieldsAsArgs, false);
+define_pd_global(bool, InlineTypeReturnedAsFields, false);
+
 #define ARCH_FLAGS(develop,                                                   \
                    product,                                                   \
                    range,                                                     \
                    constraint)                                                \
                                                                               \