--- old/src/hotspot/share/gc/shared/c2/barrierSetC2.hpp	2018-11-07 22:36:32.218269366 +0100
+++ new/src/hotspot/share/gc/shared/c2/barrierSetC2.hpp	2018-11-07 22:36:32.054270342 +0100
@@ -288,6 +288,9 @@
 #ifdef ASSERT
   virtual bool verify_gc_alias_type(const TypePtr* adr_type, int offset) const { return false; }
 #endif
+
+  virtual bool final_graph_reshaping(Compile* compile, Node* n, uint opcode) const { return false; }
+
 };
 
 #endif // SHARE_GC_SHARED_C2_BARRIERSETC2_HPP