--- old/src/hotspot/share/opto/macroArrayCopy.cpp	2019-10-08 15:53:45.943651597 +0200
+++ new/src/hotspot/share/opto/macroArrayCopy.cpp	2019-10-08 15:53:45.631651601 +0200
@@ -203,7 +203,7 @@
   Node* kls = NULL;
   if (_igvn.type(obj_or_klass)->isa_oopptr()) {
     Node* k_adr = basic_plus_adr(obj_or_klass, oopDesc::klass_offset_in_bytes());
-    kls = transform_later(LoadKlassNode::make(_igvn, NULL, C->immutable_memory(), k_adr, TypeInstPtr::KLASS));
+    kls = transform_later(LoadKlassNode::make(_igvn, NULL, C->immutable_memory(), k_adr, TypeInstPtr::KLASS, TypeKlassPtr::OBJECT, /* clear_prop_bits = */ true));
   } else {
     assert(_igvn.type(obj_or_klass)->isa_klassptr(), "what else?");
     kls = obj_or_klass;