diff -r c887851da33d -r 97d13893ec3c src/hotspot/share/gc/g1/g1BarrierSet.cpp
--- a/src/hotspot/share/gc/g1/g1BarrierSet.cpp	Wed Nov 27 10:21:22 2019 +0100
+++ b/src/hotspot/share/gc/g1/g1BarrierSet.cpp	Tue Nov 26 10:47:46 2019 +0100
@@ -37,6 +37,7 @@
 #include "oops/oop.inline.hpp"
 #include "runtime/interfaceSupport.inline.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/orderAccess.hpp"
 #include "runtime/thread.inline.hpp"
 #include "utilities/macros.hpp"
 #ifdef COMPILER1