--- old/src/hotspot/share/opto/graphKit.cpp	2019-03-14 14:00:03.251849259 +0100
+++ new/src/hotspot/share/opto/graphKit.cpp	2019-03-14 14:00:03.095848660 +0100
@@ -1798,10 +1798,6 @@
       // We don't pass value type arguments by reference but instead
       // pass each field of the value type
       ValueTypeNode* vt = arg->isa_ValueType();
-      if (vt == NULL) {
-        // TODO why is that?? Shouldn't we always see a valuetype node here?
-        vt = ValueTypeNode::make_from_oop(this, arg, t->value_klass());
-      }
       vt->pass_fields(this, call, sig_cc, idx);
       // If a value type argument is passed as fields, attach the Method* to the call site
       // to be able to access the extended signature later via attached_method_before_pc().