--- a/src/hotspot/share/opto/callnode.cpp	Fri Jul 13 11:21:55 2018 +0800
+++ b/src/hotspot/share/opto/callnode.cpp	Thu Jul 12 16:31:28 2018 +0200
@@ -759,6 +759,7 @@
         }
       }
     }
+    guarantee(dest != NULL, "Call had only one ptr in, broken IR!");
     if (!dest->is_top() && may_modify_arraycopy_helper(phase->type(dest)->is_oopptr(), t_oop, phase)) {
       return true;
     }