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814 lines
34 KiB
OCaml
814 lines
34 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Heptagon *)
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(* *)
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(* Gwenael Delaval, LIG/INRIA, UJF *)
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(* Leonard Gerard, Parkas, ENS *)
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(* Adrien Guatto, Parkas, ENS *)
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(* Cedric Pasteur, Parkas, ENS *)
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(* *)
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(* Copyright 2012 ENS, INRIA, UJF *)
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(* *)
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(* This file is part of the Heptagon compiler. *)
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(* *)
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(* Heptagon is free software: you can redistribute it and/or modify it *)
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(* under the terms of the GNU General Public License as published by *)
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(* the Free Software Foundation, either version 3 of the License, or *)
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(* (at your option) any later version. *)
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(* *)
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(* Heptagon is distributed in the hope that it will be useful, *)
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(* but WITHOUT ANY WARRANTY; without even the implied warranty of *)
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(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *)
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(* GNU General Public License for more details. *)
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(* *)
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(* You should have received a copy of the GNU General Public License *)
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(* along with Heptagon. If not, see <http://www.gnu.org/licenses/> *)
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(* *)
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(***********************************************************************)
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(* Translation from Minils to Obc. *)
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open Misc
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open Names
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open Idents
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open Signature
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open Obc
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open Obc_utils
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open Obc_mapfold
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open Types
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open Clocks
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open Static
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open Initial
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let build_anon, find_anon =
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let anon_nodes = ref QualEnv.empty in
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let build_anon nodes =
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let build env nd = match nd with
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| Minils.Pnode nd ->
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if Itfusion.is_anon_node nd.Minils.n_name
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then QualEnv.add nd.Minils.n_name nd env
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else env
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| _ -> env
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in
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anon_nodes := List.fold_left build QualEnv.empty nodes
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in
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let find_anon qn = QualEnv.find qn !anon_nodes in
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build_anon, find_anon
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let var_from_name map x =
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begin try
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Env.find x map
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with
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_ ->
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Format.eprintf
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"Internal compiler error: unknown identifier %a@."
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Global_printer.print_ident x;
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assert false
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end
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let ext_value_exp_from_name map x =
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let w = ext_value_of_pattern (var_from_name map x) in
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mk_exp w.w_ty (Eextvalue w)
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(* let lvar_from_name map ty x = mk_pattern ty (Lvar (var_from_name map x)) *)
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let fresh_it () =
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let id = Idents.gen_var "mls2obc" "i" in
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id, mk_var_dec id Initial.tint
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let gen_obj_ident n = Idents.gen_var "mls2obc" ((shortname n) ^ "_inst")
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let fresh_for = fresh_for "mls2obc"
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(*let copy_array = copy_array "mls2obc"*)
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let op_from_string op = { qual = Pervasives; name = op; }
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let rec pattern_of_idx_list p l =
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let rec aux p l = match Modules.unalias_type p.pat_ty, l with
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| _, [] -> p
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| Tarray (ty',_), idx :: l -> aux (mk_pattern ty' (Larray (p, idx))) l
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| _ -> internal_error "mls2obc"
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in
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aux p l
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let rec exp_of_idx_list e l = match Modules.unalias_type e.w_ty, l with
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| _, [] -> e
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| Tarray (ty',_), idx :: l ->
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exp_of_idx_list (mk_ext_value ty' (Warray (e, idx))) l
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| _ -> internal_error "mls2obc exp_of_idx_list"
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let rec extvalue_of_idx_list w l = match Modules.unalias_type w.w_ty, l with
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| _, [] -> w
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| Tarray (ty',_), idx :: l ->
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extvalue_of_idx_list (mk_ext_value ty' (Warray (w, idx))) l
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| _ -> internal_error "mls2obc extvalue_of_idx_list"
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let rec ext_value_of_trunc_idx_list p l =
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let mk_between idx se =
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mk_exp_int (Eop (mk_pervasives "between", [idx; mk_ext_value_exp se.se_ty (Wconst se)]))
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in
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let rec aux p l = match p.w_ty, l with
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| _, [] -> p
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| Tarray (ty', se), idx :: l -> aux (mk_ext_value ty' (Warray (p, mk_between idx se))) l
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| _ -> internal_error "mls2obc ext_value_of_trunc_idx_list"
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in
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aux p l
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let rec ty_of_idx_list ty idx_list = match ty, idx_list with
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| _, [] -> ty
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| Tarray(ty, _), idx::idx_list -> ty_of_idx_list ty idx_list
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| _, _ -> internal_error "mls2obc ty_of_idx_list"
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let mk_static_array_power ty c params = match params with
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| [] -> mk_ext_value_exp ty (Wconst c)
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| _ ->
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let se = mk_static_exp ty (Sarray_power (c, params)) in
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mk_ext_value_exp ty (Wconst se)
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let array_elt_of_exp idx e =
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match e.e_desc, Modules.unalias_type e.e_ty with
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| Eextvalue { w_desc = Wconst { se_desc = Sarray_power (c, _::new_params) }; }, Tarray (ty,_) ->
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mk_static_array_power ty c new_params
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| _, Tarray (ty,_) ->
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mk_ext_value_exp ty (Warray(ext_value_of_exp e, idx))
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| _ -> internal_error "mls2obc array_elt_of_exp"
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let rec array_elt_of_exp_list idx_list e =
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match e.e_desc, Modules.unalias_type e.e_ty with
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| Eextvalue { w_desc = Wconst { se_desc = Sarray_power (c, params) } }, Tarray (ty,n) ->
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let new_params, _ = Misc.split_at (List.length params - List.length idx_list) params in
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let ty = ty_of_idx_list (Tarray(ty,n)) idx_list in
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mk_static_array_power ty c new_params
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| _ , t ->
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let rec ty id_l t = match id_l, Modules.unalias_type t with
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| [] , t -> t
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| _::id_l , Tarray (t,_) -> ty id_l t
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| _, _ -> internal_error "mls2obc ty"
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in
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mk_exp (ty idx_list t) (Eextvalue (extvalue_of_idx_list (ext_value_of_exp e) idx_list))
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(** Creates the expression that checks that the indices
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in idx_list are in the bounds. If idx_list=[e1;..;ep]
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and bounds = [n1;..;np], it returns
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0<= e1 < n1 && .. && 0 <= ep < np *)
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let rec bound_check_expr idx_list bounds =
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let mk_comp idx n =
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let e1 = mk_exp_bool (Eop (op_from_string "<",
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[idx; mk_ext_value_exp_int (Wconst n)])) in
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let e2 = mk_exp_bool (Eop (op_from_string "<=",
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[mk_ext_value_exp_int (Wconst (mk_static_int 0)); idx])) in
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mk_exp_bool (Eop (op_from_string "&", [e1;e2]))
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in
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match (idx_list, bounds) with
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| [idx], n::_ -> mk_comp idx n
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| (idx :: idx_list, n :: bounds) ->
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let e = mk_comp idx n in
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mk_exp_bool (Eop (op_from_string "&",
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[e; bound_check_expr idx_list bounds]))
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| (_, _) -> internal_error "mls2obc"
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let mk_plus_one e = match e.e_desc with
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| Eextvalue ({ w_desc = Wconst idx } as w) ->
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let idx_plus_one = mk_static_int_op (mk_pervasives "+") [idx; mk_static_int 1] in
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{ e with e_desc = Eextvalue { w with w_desc = Wconst idx_plus_one; }; }
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| _ ->
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let idx_plus_one = Eop (mk_pervasives "+", [e; mk_exp_const_int 1]) in
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{ e with e_desc = idx_plus_one }
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(** Creates the action list that copies [src] to [dest],
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updating the value at index [idx_list] with the value [v]. *)
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let rec ssa_update_array dest src idx_list v = match Modules.unalias_type dest.pat_ty, idx_list with
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| Tarray (t, n), idx::idx_list ->
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(*Body of the copy loops*)
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let copy i =
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let src_i = array_elt_of_exp i src in
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let dest_i = mk_pattern t (Larray (dest, i)) in
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[Aassgn(dest_i, src_i)]
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in
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(*Copy values < idx*)
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let a_lower = fresh_for (mk_exp_const_int 0) idx copy in
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(* Update the correct element*)
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let src_idx = array_elt_of_exp idx src in
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let dest_idx = mk_pattern t (Larray (dest, idx)) in
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let a_update = ssa_update_array dest_idx src_idx idx_list v in
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(*Copy values > idx*)
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let idx_plus_one = mk_plus_one idx in
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let a_upper = fresh_for idx_plus_one (mk_exp_static_int n) copy in
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[a_lower] @ a_update @ [a_upper]
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| _, _ ->
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[Aassgn(dest, v)]
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(** Creates the action list that copies [src] to [dest],
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updating the value of field [f] with the value [v]. *)
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let ssa_update_record dest src f v =
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let assgn_act { f_name = l; f_type = ty } =
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let dest_l = mk_pattern ty (Lfield(dest, l)) in
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let src_l = mk_ext_value_exp ty (Wfield(src, l)) in
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if f = l then
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Aassgn(dest_l, v)
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else
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Aassgn(dest_l, src_l)
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in
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let fields = match dest.pat_ty with
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| Tid n -> Modules.find_struct n
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| _ -> Misc.internal_error "mls2obc field of nonstruct"
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in
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List.map assgn_act fields
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let rec control map ck s = match ck with
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| Cbase | Cvar { contents = Cindex _ } -> s
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| Cvar { contents = Clink ck } -> control map ck s
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| Con(ck, c, n) ->
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let x = ext_value_exp_from_name map n in
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control map ck (Acase(x, [(c, mk_block [s])]))
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let reinit o =
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Acall ([], o, Mreset, [])
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let rec translate_pat map ty pat = match pat, ty with
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| Minils.Evarpat x, _ -> [ var_from_name map x ]
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| Minils.Etuplepat pat_list, Tprod ty_l ->
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List.fold_right2 (fun ty pat acc -> (translate_pat map ty pat) @ acc)
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ty_l pat_list []
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| Minils.Etuplepat _, _ -> Misc.internal_error "Ill-typed pattern"
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let translate_var_dec l =
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let one_var { Minils.v_ident = x; Minils.v_type = t; Minils.v_linearity = lin; v_loc = loc } =
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mk_var_dec ~loc:loc ~linearity:lin x t
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in
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List.map one_var l
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let rec translate_extvalue map w = match w.Minils.w_desc with
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| Minils.Wvar x -> ext_value_of_pattern (var_from_name map x)
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| _ ->
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let desc = match w.Minils.w_desc with
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| Minils.Wconst v -> Wconst v
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| Minils.Wvar x -> assert false
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| Minils.Wfield (w1, f) -> Wfield (translate_extvalue map w1, f)
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| Minils.Wwhen (w1, _, _) | Minils.Wreinit(_, w1) -> (translate_extvalue map w1).w_desc
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in
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mk_ext_value w.Minils.w_ty desc
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and translate_extvalue_to_exp map w =
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mk_exp ~loc:w.Minils.w_loc w.Minils.w_ty (Eextvalue (translate_extvalue map w))
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(* [translate e = c] *)
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let rec translate map e =
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let desc = match e.Minils.e_desc with
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| Minils.Eextvalue w ->
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let w = translate_extvalue map w in Eextvalue w
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| Minils.Eapp ({ Minils.a_op = Minils.Eequal }, w_list, _) ->
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Eop (op_from_string "=", List.map (translate_extvalue_to_exp map) w_list)
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| Minils.Eapp ({ Minils.a_op = Minils.Efun n }, e_list, _)
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when Mls_utils.is_op n ->
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Eop (n, List.map (translate_extvalue_to_exp map ) e_list)
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| Minils.Estruct f_e_list ->
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let type_name = (match e.Minils.e_ty with
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| Tid name -> name
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| _ -> assert false) in
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let f_e_list = List.map
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(fun (f, e) -> (f, (translate_extvalue_to_exp map e))) f_e_list in
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Estruct (type_name, f_e_list)
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(*Remaining array operators*)
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| Minils.Eapp ({ Minils.a_op = Minils.Earray }, e_list, _) ->
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Earray (List.map (translate_extvalue_to_exp map ) e_list)
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| Minils.Eapp ({ Minils.a_op = Minils.Eselect;
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Minils.a_params = idx_list }, e_list, _) ->
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let e = translate_extvalue map (assert_1 e_list) in
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let idx_list = List.map mk_exp_static_int idx_list in
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Eextvalue (extvalue_of_idx_list e idx_list)
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| Minils.Ewhen(e,_,_) ->
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let e = translate map e in
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e.e_desc
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(* Already treated cases when translating the [eq] *)
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| Minils.Eiterator _ | Minils.Emerge _ | Minils.Efby _
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| Minils.Eapp ({Minils.a_op=(Minils.Enode _|Minils.Efun _|Minils.Econcat
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|Minils.Eupdate|Minils.Eselect_dyn
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|Minils.Eselect_trunc|Minils.Eselect_slice
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|Minils.Earray_fill|Minils.Efield_update
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|Minils.Eifthenelse)}, _, _) ->
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internal_error "mls2obc"
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in
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mk_exp e.Minils.e_ty desc
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and translate_act_extvalue map pat w =
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match pat with
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| Minils.Evarpat n ->
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[Aassgn (var_from_name map n, translate_extvalue_to_exp map w)]
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| _ -> assert false
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(* [translate pat act = si, d] *)
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and translate_act map pat
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({ Minils.e_desc = desc } as act) =
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match pat, desc with
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(* When Merge *)
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| pat, Minils.Ewhen (e,_,_) -> translate_act map pat e
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| Minils.Evarpat x, Minils.Emerge (y, c_act_list) ->
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let x = var_from_name map x in
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let translate_c_extvalue (c, w) =
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c, mk_block [Aassgn (x, translate_extvalue_to_exp map w)]
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in
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[Acase (ext_value_exp_from_name map y,
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List.map translate_c_extvalue c_act_list)]
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(* Array ops *)
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| Minils.Evarpat x,
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Minils.Eapp ({ Minils.a_op = Minils.Econcat }, [e1; e2], _) ->
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let cpt1, cpt1d = fresh_it () in
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let cpt2, cpt2d = fresh_it () in
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let x = var_from_name map x in
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let t = x.pat_ty in
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(match e1.Minils.w_ty, e2.Minils.w_ty with
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| Tarray (t1, n1), Tarray (t2, n2) ->
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let e1 = translate_extvalue_to_exp map e1 in
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let e2 = translate_extvalue_to_exp map e2 in
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let a1 =
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Afor (cpt1d, mk_exp_const_int 0, mk_exp_static_int n1,
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mk_block [Aassgn (mk_pattern t1 (Larray (x, mk_evar_int cpt1)),
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array_elt_of_exp (mk_evar_int cpt1) e1)] ) in
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let idx = mk_exp_int (Eop (op_from_string "+",
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[ mk_exp_static_int n1; mk_evar_int cpt2])) in
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let p2 = array_elt_of_exp (mk_evar_int cpt2) e2 in
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let a2 = Afor (cpt2d, mk_exp_const_int 0, mk_exp_static_int n2,
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mk_block [Aassgn (mk_pattern t2 (Larray (x, idx)), p2)] )
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in
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[a1; a2]
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| _ -> assert false)
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| Minils.Evarpat x,
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Minils.Eapp ({ Minils.a_op = Minils.Earray_fill; Minils.a_params = n_list }, [e], _) ->
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let e = translate_extvalue_to_exp map e in
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let x = var_from_name map x in
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let t = match x.pat_ty with
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| Tarray (t,_) -> t
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| _ -> Misc.internal_error "mls2obc select slice type"
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in
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let rec make_loop power_list replace = match power_list with
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| [] -> x, replace
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| p :: power_list ->
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let cpt, cptd = fresh_it () in
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let e, replace =
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make_loop power_list
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(fun y -> [Afor (cptd, mk_exp_const_int 0,
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mk_exp_static_int p, mk_block (replace y))]) in
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let e = Larray (e, mk_evar_int cpt) in
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(mk_pattern t e, replace)
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in
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let e, b = make_loop n_list (fun y -> [Aassgn (y, e)]) in
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b e
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| Minils.Evarpat x,
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Minils.Eapp ({ Minils.a_op = Minils.Eselect_slice;
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Minils.a_params = [idx1; idx2] }, [e], _) ->
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let cpt, cptd = fresh_it () in
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let e = translate_extvalue_to_exp map e in
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let x = var_from_name map x in
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let t = match x.pat_ty with
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| Tarray (t,_) -> t
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| _ -> Misc.internal_error "mls2obc select slice type"
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in
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let idx = mk_exp_int (Eop (op_from_string "+",
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[mk_evar_int cpt; mk_exp_static_int idx1 ])) in
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(* bound = (idx2 - idx1) + 1*)
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let bound = mk_static_int_op (op_from_string "+")
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[ mk_static_int 1; mk_static_int_op (op_from_string "-") [idx2;idx1] ] in
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[ Afor (cptd, mk_exp_const_int 0, mk_exp_static_int bound,
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mk_block [Aassgn (mk_pattern t (Larray (x, mk_evar_int cpt)),
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array_elt_of_exp idx e)] ) ]
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| Minils.Evarpat x, Minils.Eapp ({ Minils.a_op = Minils.Eselect_dyn }, e1::e2::idx, _) ->
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let x = var_from_name map x in
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let bounds = Mls_utils.bounds_list e1.Minils.w_ty in
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let e1 = translate_extvalue map e1 in
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let idx = List.map (translate_extvalue_to_exp map) idx in
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let w = extvalue_of_idx_list e1 idx in
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let true_act = Aassgn (x, mk_exp w.w_ty (Eextvalue w)) in
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let false_act = Aassgn (x, translate_extvalue_to_exp map e2) in
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let cond = bound_check_expr idx bounds in
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[ mk_ifthenelse cond [true_act] [false_act] ]
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| Minils.Evarpat x, Minils.Eapp ({ Minils.a_op = Minils.Eselect_trunc }, e1::idx, _) ->
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let x = var_from_name map x in
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let bounds = Mls_utils.bounds_list e1.Minils.w_ty in
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let e1 = translate_extvalue map e1 in
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let idx = List.map (translate_extvalue_to_exp map) idx in
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let w = ext_value_of_trunc_idx_list e1 idx in
|
|
[Aassgn (x, mk_exp w.w_ty (Eextvalue w))]
|
|
|
|
| Minils.Evarpat x, Minils.Eapp ({ Minils.a_op = Minils.Eupdate }, e1::e2::idx, _) ->
|
|
let x = var_from_name map x in
|
|
let bounds = Mls_utils.bounds_list e1.Minils.w_ty in
|
|
let idx = List.map (translate_extvalue_to_exp map) idx in
|
|
let e1 = translate_extvalue_to_exp map e1 in
|
|
let e2 = translate_extvalue_to_exp map e2 in
|
|
let cond = bound_check_expr idx bounds in
|
|
let copy = Aassgn (x, e1) in
|
|
if !Compiler_options.strict_ssa
|
|
then (
|
|
let ssa_up = ssa_update_array x e1 idx e2 in
|
|
[ mk_ifthenelse cond ssa_up [copy] ]
|
|
) else (
|
|
let assgn = Aassgn (pattern_of_idx_list x idx, e2) in
|
|
[copy; mk_if cond [assgn]]
|
|
)
|
|
|
|
| Minils.Evarpat x,
|
|
Minils.Eapp ({ Minils.a_op = Minils.Efield_update;
|
|
Minils.a_params = [{ se_desc = Sfield f }] }, [e1; e2], _) ->
|
|
let x = var_from_name map x in
|
|
let e1' = translate_extvalue map e1 in
|
|
let e2 = translate_extvalue_to_exp map e2 in
|
|
if !Compiler_options.strict_ssa
|
|
then ssa_update_record x e1' f e2
|
|
else (
|
|
let copy = Aassgn (x, translate_extvalue_to_exp map e1) in
|
|
let action = Aassgn (mk_pattern (Types.Tid (Modules.find_field f)) (Lfield (x, f)), e2) in
|
|
[copy; action]
|
|
)
|
|
| Minils.Evarpat n, _ ->
|
|
[Aassgn (var_from_name map n, translate map act)]
|
|
| _ ->
|
|
Format.eprintf "%a The pattern %a should be a simple var to be translated to obc.@."
|
|
Location.print_location act.Minils.e_loc Mls_printer.print_pat pat;
|
|
assert false
|
|
|
|
(** In an iteration, objects used are element of object arrays *)
|
|
type obj_array = { oa_index : Obc.pattern list; oa_size : static_exp list }
|
|
|
|
(** A [None] context is normal, otherwise, we are in an iteration *)
|
|
type call_context = obj_array option
|
|
|
|
let mk_obj_call_from_context c n = match c with
|
|
| None -> Oobj n
|
|
| Some oa -> Oarray (n, oa.oa_index)
|
|
|
|
let size_from_call_context c = match c with
|
|
| None -> None
|
|
| Some oa -> Some (oa.oa_size)
|
|
|
|
let empty_call_context = None
|
|
|
|
(** [si] the initialization actions used in the reset method,
|
|
[j] obj decs
|
|
[s] the actions used in the step method.
|
|
[v] var decs *)
|
|
let rec translate_eq map call_context
|
|
({ Minils.eq_lhs = pat; Minils.eq_base_ck = ck; Minils.eq_rhs = e } as eq)
|
|
(v, si, j, s) =
|
|
let { Minils.e_desc = desc; Minils.e_loc = loc } = e in
|
|
match (pat, desc) with
|
|
| pat, Minils.Ewhen (e,_,_) ->
|
|
translate_eq map call_context {eq with Minils.eq_rhs = e} (v, si, j, s)
|
|
(* TODO Efby and Eifthenelse should be dealt with in translate_act, no ? *)
|
|
| Minils.Evarpat n, Minils.Efby (opt_c, e) ->
|
|
let x = var_from_name map n in
|
|
let si = (match opt_c with
|
|
| None -> si
|
|
| Some c -> (Aassgn (x, mk_ext_value_exp_static x.pat_ty c)) :: si) in
|
|
let action = Aassgn (var_from_name map n, translate_extvalue_to_exp map e) in
|
|
v, si, j, (control map ck action) :: s
|
|
(* should be unnecessary
|
|
| Minils.Etuplepat p_list,
|
|
Minils.Eapp({ Minils.a_op = Minils.Etuple }, act_list, _) ->
|
|
List.fold_right2
|
|
(fun pat e ->
|
|
translate_eq map call_context
|
|
(Minils.mk_equation pat e))
|
|
p_list act_list (v, si, j, s)
|
|
*)
|
|
| pat, Minils.Eapp({ Minils.a_op = Minils.Eifthenelse }, [e1;e2;e3], _) ->
|
|
let cond = translate_extvalue_to_exp map e1 in
|
|
let true_act = translate_act_extvalue map pat e2 in
|
|
let false_act = translate_act_extvalue map pat e3 in
|
|
let action = mk_ifthenelse cond true_act false_act in
|
|
v, si, j, (control map ck action) :: s
|
|
|
|
| pat, Minils.Eapp({ Minils.a_op =
|
|
Minils.Efun ({ qual = Module "Iostream"; name = "printf" | "fprintf" } as q)},
|
|
args, _) ->
|
|
let action = Aop (q, List.map (translate_extvalue_to_exp map) args) in
|
|
v, si, j, (control map ck action) :: s
|
|
|
|
| pat, Minils.Eapp ({ Minils.a_op = Minils.Efun _ | Minils.Enode _ } as app, e_list, r) ->
|
|
let name_list = translate_pat map e.Minils.e_ty pat in
|
|
let c_list = List.map (translate_extvalue_to_exp map) e_list in
|
|
let v', si', j', action = mk_node_call map call_context
|
|
app loc name_list c_list e.Minils.e_ty in
|
|
let action = List.map (control map ck) action in
|
|
let s = (match r, app.Minils.a_op with
|
|
| Some r, Minils.Enode _ ->
|
|
let ck = Clocks.Con (ck, Initial.ptrue, r) in
|
|
let ra = List.map (control map ck) si' in
|
|
ra @ action @ s
|
|
| _, _ -> action @ s) in
|
|
v' @ v, si'@si, j'@j, s
|
|
|
|
| pat, Minils.Eiterator (it, app, n_list, pe_list, e_list, reset) ->
|
|
let name_list = translate_pat map e.Minils.e_ty pat in
|
|
let p_list = List.map (translate_extvalue_to_exp map) pe_list in
|
|
let c_list = List.map (translate_extvalue_to_exp map) e_list in
|
|
let xl, xdl = List.split (List.map (fun _ -> fresh_it ()) n_list) in
|
|
let call_context =
|
|
Some { oa_index = List.map (fun x -> mk_pattern_int (Lvar x)) xl;
|
|
oa_size = n_list} in
|
|
let n_list = List.map mk_exp_static_int n_list in
|
|
let si', j', action = translate_iterator map call_context it
|
|
name_list app loc n_list xl xdl p_list c_list e.Minils.e_ty in
|
|
let action = List.map (control map ck) action in
|
|
let s =
|
|
(match reset, app.Minils.a_op with
|
|
| Some r, Minils.Enode _ ->
|
|
let ck = Clocks.Con (ck, Initial.ptrue, r) in
|
|
let ra = List.map (control map ck) si' in
|
|
ra @ action @ s
|
|
| _, _ -> action @ s)
|
|
in (v, si' @ si, j' @ j, s)
|
|
|
|
| (pat, _) ->
|
|
let action = translate_act map pat e in
|
|
let action = List.map (control map ck) action in
|
|
v, si, j, action @ s
|
|
|
|
and translate_eq_list map call_context act_list =
|
|
List.fold_right (translate_eq map call_context) act_list ([], [], [], [])
|
|
|
|
and mk_node_call map call_context app loc (name_list : Obc.pattern list) args ty =
|
|
match app.Minils.a_op with
|
|
| Minils.Efun f when Mls_utils.is_op f ->
|
|
let act = match name_list with
|
|
| [] -> Aop (f, args)
|
|
| [name] ->
|
|
let e = mk_exp ty (Eop(f, args)) in
|
|
Aassgn (name, e)
|
|
| _ ->
|
|
Misc.unsupported "mls2obc: external function with multiple return values" in
|
|
[], [], [], [act]
|
|
|
|
| Minils.Enode f when Itfusion.is_anon_node f ->
|
|
let add_input env vd =
|
|
Env.add vd.Minils.v_ident
|
|
(mk_pattern vd.Minils.v_type (Lvar vd.Minils.v_ident)) env in
|
|
let build env vd a = Env.add vd.Minils.v_ident a env in
|
|
let subst_act_list env act_list =
|
|
let exp funs env e = match e.e_desc with
|
|
| Eextvalue { w_desc = Wvar x } ->
|
|
let e =
|
|
(try Env.find x env
|
|
with Not_found -> e) in
|
|
e, env
|
|
| _ -> Obc_mapfold.exp funs env e
|
|
in
|
|
let funs = { Obc_mapfold.defaults with exp = exp } in
|
|
let act_list, _ = mapfold (Obc_mapfold.act_it funs) env act_list in
|
|
act_list
|
|
in
|
|
|
|
let nd = find_anon f in
|
|
let map = List.fold_left add_input map nd.Minils.n_input in
|
|
let map = List.fold_left2 build map nd.Minils.n_output name_list in
|
|
let map = List.fold_left add_input map nd.Minils.n_local in
|
|
let v, si, j, s = translate_eq_list map call_context nd.Minils.n_equs in
|
|
let env = List.fold_left2 build Env.empty nd.Minils.n_input args in
|
|
v @ nd.Minils.n_local, si, j, subst_act_list env s
|
|
|
|
| Minils.Enode f | Minils.Efun f ->
|
|
let id = match app.Minils.a_id with
|
|
| None -> gen_obj_ident f
|
|
| Some id -> id
|
|
in
|
|
let o = mk_obj_call_from_context call_context id in
|
|
let obj =
|
|
{ o_ident = obj_ref_name o; o_class = f;
|
|
o_params = app.Minils.a_params;
|
|
o_size = size_from_call_context call_context; o_loc = loc } in
|
|
let si = match app.Minils.a_op with
|
|
| Minils.Efun _ -> []
|
|
| Minils.Enode _ -> [reinit o]
|
|
| _ -> assert false
|
|
in
|
|
let s = [Acall (name_list, o, Mstep, args)] in
|
|
[], si, [obj], s
|
|
| _ -> assert false
|
|
|
|
and translate_iterator map call_context it name_list
|
|
app loc n_list xl xdl p_list c_list ty =
|
|
let rec unarray n ty = match ty, n with
|
|
| Tarray (t,_), 1 -> t
|
|
| Tarray (t,_), n -> unarray (n-1) t
|
|
| _ ->
|
|
Format.eprintf "%a" Global_printer.print_type ty;
|
|
internal_error "mls2obc"
|
|
in
|
|
let unarray = unarray (List.length n_list) in
|
|
let array_of_output name_list ty_list =
|
|
let rec aux l ty xl = match ty, xl with
|
|
| _, [] -> l
|
|
| Tarray(tyn, _), x :: xl -> aux (mk_pattern ~loc:loc tyn (Larray(l, mk_evar_int x))) tyn xl
|
|
| _, _ -> assert false
|
|
in
|
|
List.map2 (fun l ty -> aux l ty xl) name_list ty_list
|
|
in
|
|
let array_of_input c_list =
|
|
List.map (array_elt_of_exp_list (List.map mk_evar_int xl)) c_list
|
|
in
|
|
let mk_loop b xdl nl =
|
|
let rec mk_loop b xdl nl = match xdl, nl with
|
|
| xd::[], n::[] -> Afor (xd, mk_exp_const_int 0, n, b)
|
|
| xd::xdl, n::nl -> mk_loop (mk_block [Afor (xd, mk_exp_const_int 0, n, b)]) xdl nl
|
|
| _, _ -> assert false
|
|
in
|
|
mk_loop b (List.rev xdl) nl
|
|
in
|
|
match it with
|
|
| Minils.Imap ->
|
|
let c_list = array_of_input c_list in
|
|
let ty_list = List.map unarray (Types.unprod ty) in
|
|
let name_list = array_of_output name_list (Types.unprod ty) in
|
|
let node_out_ty = Types.prod ty_list in
|
|
let v, si, j, action = mk_node_call map call_context
|
|
app loc name_list (p_list@c_list) node_out_ty in
|
|
let v = translate_var_dec v in
|
|
let b = mk_block ~locals:v action in
|
|
let bi = mk_block si in
|
|
[mk_loop bi xdl n_list], j, [mk_loop b xdl n_list]
|
|
|
|
| Minils.Imapi ->
|
|
let c_list = array_of_input c_list in
|
|
let ty_list = List.map unarray (Types.unprod ty) in
|
|
let name_list = array_of_output name_list (Types.unprod ty) in
|
|
let node_out_ty = Types.prod ty_list in
|
|
let v, si, j, action = mk_node_call map call_context
|
|
app loc name_list (p_list@c_list@(List.map mk_evar_int xl)) node_out_ty in
|
|
let v = translate_var_dec v in
|
|
let b = mk_block ~locals:v action in
|
|
let bi = mk_block si in
|
|
[mk_loop bi xdl n_list], j, [mk_loop b xdl n_list]
|
|
|
|
| Minils.Imapfold ->
|
|
let (c_list, acc_in) = split_last c_list in
|
|
let c_list = array_of_input c_list in
|
|
let ty_list = Types.unprod ty in
|
|
let ty_name_list, _ = Misc.split_last ty_list in
|
|
let (name_list, acc_out) = Misc.split_last name_list in
|
|
let name_list = array_of_output name_list ty_name_list in
|
|
let node_out_ty = Types.prod (Misc.map_butlast unarray ty_list) in
|
|
let v, si, j, action = mk_node_call map call_context app loc
|
|
(name_list @ [ acc_out ])
|
|
(p_list @ c_list @ [ exp_of_pattern acc_out ])
|
|
node_out_ty
|
|
in
|
|
let v = translate_var_dec v in
|
|
let b = mk_block ~locals:v action in
|
|
let bi = mk_block si in
|
|
[mk_loop bi xdl n_list], j,
|
|
[Aassgn (acc_out, acc_in); mk_loop b xdl n_list]
|
|
|
|
| Minils.Ifold ->
|
|
let (c_list, acc_in) = split_last c_list in
|
|
let c_list = array_of_input c_list in
|
|
let acc_out = last_element name_list in
|
|
let v, si, j, action =
|
|
mk_node_call map call_context app loc name_list
|
|
(p_list @ c_list @ [ exp_of_pattern acc_out ]) ty
|
|
in
|
|
let v = translate_var_dec v in
|
|
let b = mk_block ~locals:v action in
|
|
let bi = mk_block si in
|
|
[mk_loop bi xdl n_list], j,
|
|
[ Aassgn (acc_out, acc_in); mk_loop b xdl n_list]
|
|
|
|
| Minils.Ifoldi ->
|
|
let (c_list, acc_in) = split_last c_list in
|
|
let c_list = array_of_input c_list in
|
|
let acc_out = last_element name_list in
|
|
let v, si, j, action = mk_node_call map call_context app loc name_list
|
|
(p_list @ c_list @ (List.map mk_evar_int xl) @ [ exp_of_pattern acc_out ]) ty
|
|
in
|
|
let v = translate_var_dec v in
|
|
let b = mk_block ~locals:v action in
|
|
let bi = mk_block si in
|
|
[mk_loop bi xdl n_list], j,
|
|
[ Aassgn (acc_out, acc_in); mk_loop b xdl n_list]
|
|
|
|
let remove m d_list =
|
|
List.filter (fun { Minils.v_ident = n } -> not (List.mem_assoc n m)) d_list
|
|
|
|
let translate_contract map mem_var_tys =
|
|
function
|
|
| None -> ([], [], [], [])
|
|
| Some
|
|
{
|
|
Minils.c_eq = eq_list;
|
|
Minils.c_local = d_list;
|
|
} ->
|
|
let (v, si, j, s_list) = translate_eq_list map empty_call_context eq_list in
|
|
let d_list = translate_var_dec (v @ d_list) in
|
|
let d_list = List.filter
|
|
(fun vd -> not (List.exists (fun (i,_) -> i = vd.v_ident) mem_var_tys)) d_list in
|
|
(si, j, s_list, d_list)
|
|
|
|
(** Returns a map, mapping variables names to the variables
|
|
where they will be stored. *)
|
|
let subst_map inputs outputs controllables c_locals locals mem_tys =
|
|
(* Create a map that simply maps each var to itself *)
|
|
let map =
|
|
List.fold_left
|
|
(fun m { Minils.v_ident = x; Minils.v_type = ty } -> Env.add x (mk_pattern ty (Lvar x)) m)
|
|
Env.empty (inputs @ outputs @ controllables @ c_locals @ locals)
|
|
in
|
|
List.fold_left (fun map (x, x_ty) -> Env.add x (mk_pattern x_ty (Lmem x)) map) map mem_tys
|
|
|
|
let translate_node
|
|
({ Minils.n_name = f; Minils.n_input = i_list; Minils.n_output = o_list;
|
|
Minils.n_local = d_list; Minils.n_equs = eq_list; Minils.n_stateful = stateful;
|
|
Minils.n_contract = contract; Minils.n_params = params; Minils.n_loc = loc;
|
|
Minils.n_mem_alloc = mem_alloc
|
|
} as n) =
|
|
Idents.enter_node f;
|
|
let mem_var_tys = Mls_utils.node_memory_vars n in
|
|
let c_list, c_locals =
|
|
match contract with
|
|
| None -> [], []
|
|
| Some c -> c.Minils.c_controllables, c.Minils.c_local in
|
|
let subst_map = subst_map i_list o_list c_list c_locals d_list mem_var_tys in
|
|
let (v, si, j, s_list) = translate_eq_list subst_map empty_call_context eq_list in
|
|
let (si', j', s_list', d_list') = translate_contract subst_map mem_var_tys contract in
|
|
let i_list = translate_var_dec i_list in
|
|
let o_list = translate_var_dec o_list in
|
|
let d_list = translate_var_dec (v @ d_list) in
|
|
let m, d_list = List.partition
|
|
(fun vd -> List.exists (fun (i,_) -> i = vd.v_ident) mem_var_tys) d_list in
|
|
let m', o_list =
|
|
List.partition
|
|
(fun vd -> List.exists (fun (i,_) -> i = vd.v_ident) mem_var_tys) o_list in
|
|
let s = s_list @ s_list' in
|
|
let j = j' @ j in
|
|
let si = si @ si' in
|
|
let stepm = { m_name = Mstep; m_inputs = i_list; m_outputs = o_list;
|
|
m_body = mk_block ~locals:(d_list' @ d_list) s }
|
|
in
|
|
let resetm = { m_name = Mreset; m_inputs = []; m_outputs = []; m_body = mk_block si } in
|
|
if stateful
|
|
then { cd_name = f; cd_stateful = true; cd_mems = m' @ m; cd_params = params;
|
|
cd_objs = j; cd_methods = [stepm; resetm]; cd_loc = loc; cd_mem_alloc = mem_alloc }
|
|
else (
|
|
(* Functions won't have [Mreset] or memories,
|
|
they still have [params] and instances (of functions) *)
|
|
{ cd_name = f; cd_stateful = false; cd_mems = []; cd_params = params;
|
|
cd_objs = j; cd_methods = [stepm]; cd_loc = loc; cd_mem_alloc = mem_alloc }
|
|
)
|
|
|
|
let translate_ty_def { Minils.t_name = name; Minils.t_desc = tdesc;
|
|
Minils.t_loc = loc } =
|
|
let tdesc = match tdesc with
|
|
| Minils.Type_abs -> Type_abs
|
|
| Minils.Type_alias ln -> Type_alias ln
|
|
| Minils.Type_enum tag_name_list -> Type_enum tag_name_list
|
|
| Minils.Type_struct field_ty_list -> Type_struct field_ty_list
|
|
in
|
|
{ t_name = name; t_desc = tdesc; t_loc = loc }
|
|
|
|
let translate_const_def { Minils.c_name = name; Minils.c_value = se;
|
|
Minils.c_type = ty; Minils.c_loc = loc } =
|
|
{ c_name = name;
|
|
c_value = se;
|
|
c_type = ty;
|
|
c_loc = loc }
|
|
|
|
let program { Minils.p_modname = p_modname; Minils.p_opened = p_o; Minils.p_desc = pd; } =
|
|
build_anon pd;
|
|
|
|
let program_desc pd acc = match pd with
|
|
| Minils.Pnode n when not (Itfusion.is_anon_node n.Minils.n_name) ->
|
|
Pclass (translate_node n) :: acc
|
|
(* dont't translate anonymous nodes, they will be inlined *)
|
|
| Minils.Pnode n -> acc
|
|
| Minils.Ptype t -> Ptype (translate_ty_def t) :: acc
|
|
| Minils.Pconst c -> Pconst (translate_const_def c) :: acc
|
|
in
|
|
let p_desc = List.fold_right program_desc pd [] in
|
|
{ p_modname = p_modname;
|
|
p_opened = p_o;
|
|
p_desc = p_desc }
|
|
|
|
|
|
let signature s =
|
|
{ sig_name = s.Minils.sig_name;
|
|
sig_inputs = s.Minils.sig_inputs;
|
|
sig_stateful = s.Minils.sig_stateful;
|
|
sig_outputs = s.Minils.sig_outputs;
|
|
sig_params = s.Minils.sig_params;
|
|
sig_param_constraints = s.Minils.sig_param_constraints;
|
|
sig_loc = s.Minils.sig_loc }
|
|
|
|
let interface i =
|
|
let interface_decl id = match id with
|
|
| Minils.Itypedef td -> Itypedef (translate_ty_def td)
|
|
| Minils.Iconstdef cd -> Iconstdef (translate_const_def cd)
|
|
| Minils.Isignature s -> Isignature (signature s)
|
|
in
|
|
{ i_modname = i.Minils.i_modname;
|
|
i_opened = i.Minils.i_opened;
|
|
i_desc = List.map interface_decl i.Minils.i_desc }
|