diff -r ae2eb76c486d -r 5e8f9713e343 src/hotspot/share/gc/shared/c2/barrierSetC2.hpp
--- a/src/hotspot/share/gc/shared/c2/barrierSetC2.hpp	Thu Nov 28 13:02:39 2019 +0100
+++ b/src/hotspot/share/gc/shared/c2/barrierSetC2.hpp	Fri Nov 29 11:26:25 2019 +0100
@@ -325,6 +325,8 @@
   virtual void late_barrier_analysis() const { }
   virtual int estimate_stub_size() const { return 0; }
   virtual void emit_stubs(CodeBuffer& cb) const { }
+
+  static int arraycopy_payload_base_offset(bool is_array);
 };
 
 #endif // SHARE_GC_SHARED_C2_BARRIERSETC2_HPP