--- old/src/hotspot/share/opto/macro.cpp	2018-10-25 10:48:36.928227588 +0200
+++ new/src/hotspot/share/opto/macro.cpp	2018-10-25 10:48:28.476209697 +0200
@@ -940,6 +940,7 @@
           }
           k -= (oc2 - use->outcnt());
         }
+        _igvn.remove_dead_node(use);
       } else if (use->is_ArrayCopy()) {
         // Disconnect ArrayCopy node
         ArrayCopyNode* ac = use->as_ArrayCopy();