6773078: UseCompressedOops: assert(kid == 0L || s->_leaf->in(0) ==...

6773078: UseCompressedOops: assert(kid == 0L || s->_leaf->in(0) == 0L,"internal operands have no control")
Summary: Don't set the control edge of a klass load node.
Reviewed-by: never

src/share/vm/opto/macro.cpp

@@ -1673,7 +1673,6 @@ void PhaseMacroExpand::expand_lock_node(LockNode *lock) {
     if (klass_node == NULL) {
       Node* k_adr = basic_plus_adr(obj, oopDesc::klass_offset_in_bytes());
       klass_node = transform_later( LoadKlassNode::make(_igvn, mem, k_adr, _igvn.type(k_adr)->is_ptr()) );
-      klass_node->init_req(0, ctrl);
     }
     Node *proto_node = make_load(ctrl, mem, klass_node, Klass::prototype_header_offset_in_bytes() + sizeof(oopDesc), TypeX_X, TypeX_X->basic_type());