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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. *)
(* *)
(**************************************************************************)
[@@@ocaml.warning "+a-4-9-30-40-41-42"]
type allocation_point =
| Symbol of Symbol.t
| Variable of Variable.t
type allocated_const =
| Normal of Allocated_const.t
| Array of Lambda.array_kind * Asttypes.mutable_flag * Variable.t list
| Duplicate_array of Lambda.array_kind * Asttypes.mutable_flag * Variable.t
type constant_defining_value =
| Allocated_const of allocated_const
| Block of Tag.t * Variable.t list
| Set_of_closures of Flambda.set_of_closures
| Project_closure of Flambda.project_closure
| Move_within_set_of_closures of Flambda.move_within_set_of_closures
| Project_var of Flambda.project_var
| Field of Variable.t * int
| Symbol_field of Symbol.t * int
| Const of Flambda.const
| Symbol of Symbol.t
| Variable of Variable.t
type initialize_symbol_field = Variable.t option
(** Simple alias analysis working over information about which
symbols have been assigned to variables; and which constants have
been assigned to symbols. The return value gives the assignment
of the defining values of constants to variables.
Also see comments for [Lift_constants], whose input feeds this
pass.
Variables found to be ill-typed accesses to other constants, for
example arising from dead code, will be pointed at [the_dead_constant].
*)
val run
: constant_defining_value Variable.Tbl.t
-> initialize_symbol_field list Symbol.Tbl.t
-> Flambda.constant_defining_value Symbol.Tbl.t
-> the_dead_constant:Symbol.t
-> allocation_point Variable.Map.t
val print_constant_defining_value
: Format.formatter
-> constant_defining_value
-> unit
|
