--- old/src/hotspot/share/opto/node.hpp	2018-12-03 17:49:04.466714541 +0100
+++ new/src/hotspot/share/opto/node.hpp	2018-12-03 17:49:04.309715662 +0100
@@ -142,6 +142,7 @@
 class RootNode;
 class SafePointNode;
 class SafePointScalarObjectNode;
+class ShenandoahBarrierNode;
 class StartNode;
 class State;
 class StoreNode;
@@ -675,6 +676,7 @@
       DEFINE_CLASS_ID(EncodeNarrowPtr, Type, 6)
         DEFINE_CLASS_ID(EncodeP, EncodeNarrowPtr, 0)
         DEFINE_CLASS_ID(EncodePKlass, EncodeNarrowPtr, 1)
+      DEFINE_CLASS_ID(ShenandoahBarrier, Type, 7)
 
     DEFINE_CLASS_ID(Proj,  Node, 3)
       DEFINE_CLASS_ID(CatchProj, Proj, 0)
@@ -873,6 +875,7 @@
   DEFINE_CLASS_QUERY(Root)
   DEFINE_CLASS_QUERY(SafePoint)
   DEFINE_CLASS_QUERY(SafePointScalarObject)
+  DEFINE_CLASS_QUERY(ShenandoahBarrier)
   DEFINE_CLASS_QUERY(Start)
   DEFINE_CLASS_QUERY(Store)
   DEFINE_CLASS_QUERY(Sub)