(** Compatibility between a compilation environment and an address-taken set. *)

Definition compat_cenv (atk: VSet.t) (cenv: compilenv) : Prop :=
  forall id, VSet.In id atk -> VSet.In id cenv -> False.

Lemma alloc_variables_initial_value: forall e m vars e' m', alloc_variables ge e m vars e' m' -> env_initial_value e m -> env_initial_value e' m'.