--- a/src/hotspot/cpu/s390/globalDefinitions_s390.hpp	Mon Sep 02 12:10:21 2019 +0200
+++ b/src/hotspot/cpu/s390/globalDefinitions_s390.hpp	Mon Aug 12 19:20:12 2019 +0200
@@ -42,6 +42,8 @@
 
 #define SUPPORTS_NATIVE_CX8
 
+#define CPU_MULTI_COPY_ATOMIC
+
 // Indicates whether the C calling conventions require that
 // 32-bit integer argument values are extended to 64 bits.
 // This is the case on z/Architecture.