--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/meta/HotSpotWordOperationPlugin.java	2019-03-12 08:09:17.879458284 +0100
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/meta/HotSpotWordOperationPlugin.java	2019-03-12 08:09:17.503455842 +0100
@@ -121,7 +121,7 @@
                 ValueNode pointer = args[0];
                 assert pointer.stamp(NodeView.DEFAULT) instanceof MetaspacePointerStamp;
 
-                LogicNode isNull = b.addWithInputs(IsNullNode.create(pointer));
+                LogicNode isNull = b.add(IsNullNode.create(pointer));
                 b.addPush(returnKind, ConditionalNode.create(isNull, b.add(forBoolean(true)), b.add(forBoolean(false)), NodeView.DEFAULT));
                 break;