(* TEST
 include tool-ocaml-lib;
 flags = "-w -a";
 ocaml_script_as_argument = "true";
 setup-ocaml-build-env;
 ocaml;
*)

type t = {
  mutable a : int;
};;

{ a = 0 };;

(**
       0 CONST0
       1 MAKEBLOCK1 0
       3 ATOM0
       4 SETGLOBAL T040-makeblock1
       6 STOP
**)