remove_unused_program_constructs.mli

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(*                                                                        *)
(*                                 OCaml                                  *)
(*                                                                        *)
(*                       Pierre Chambart, OCamlPro                        *)
(*           Mark Shinwell and Leo White, Jane Street Europe              *)
(*                                                                        *)
(*   Copyright 2013--2016 OCamlPro SAS                                    *)
(*   Copyright 2014--2016 Jane Street Group LLC                           *)
(*                                                                        *)
(*   All rights reserved.  This file is distributed under the terms of    *)
(*   the GNU Lesser General Public License version 2.1, with the          *)
(*   special exception on linking described in the file LICENSE.          *)
(*                                                                        *)
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[@@@ocaml.warning "+a-4-9-30-40-41-42"]

(* Remove unused [Flambda.program] constructs from the given program.
   - Symbols (whose defining expressions have no effects) are eliminated
     if unused.
   - [Effect] constructs that turn out to have no effects are eliminated.
*)
val remove_unused_program_constructs : Flambda.program -> Flambda.program