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lustrec / src / backends / C / c_backend_common.ml @ 3b2bd83d

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(********************************************************************)
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(*                                                                  *)
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(*  The LustreC compiler toolset   /  The LustreC Development Team  *)
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(*  Copyright 2012 -    --   ONERA - CNRS - INPT                    *)
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(*                                                                  *)
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(*  LustreC is free software, distributed WITHOUT ANY WARRANTY      *)
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(*  under the terms of the GNU Lesser General Public License        *)
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(*  version 2.1.                                                    *)
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(*                                                                  *)
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(********************************************************************)
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open Format
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open LustreSpec
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open Corelang
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open Machine_code
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let print_version fmt =
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  Format.fprintf fmt 
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    "/* @[<v>C code generated by %s@,Version number %s@,Code is %s compliant@,Using %s numbers */@,@]@."
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    (Filename.basename Sys.executable_name) 
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    Version.number 
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    (if !Options.ansi then "ANSI C90" else "C99")
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    (if !Options.mpfr then "MPFR multi-precision" else "(double) floating-point")
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let file_to_module_name basename =
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  let baseNAME = String.uppercase basename in
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  let baseNAME = Str.global_replace (Str.regexp "\\.\\|\\ ") "_" baseNAME in
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  baseNAME
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(* Generation of a non-clashing name for the self memory variable (for step and reset functions) *)
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let mk_self m =
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  let used name =
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       (List.exists (fun v -> v.var_id = name) m.mstep.step_inputs)
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    || (List.exists (fun v -> v.var_id = name) m.mstep.step_outputs)
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    || (List.exists (fun v -> v.var_id = name) m.mstep.step_locals)
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    || (List.exists (fun v -> v.var_id = name) m.mmemory) in
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  mk_new_name used "self"
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(* Generation of a non-clashing name for the instance variable of static allocation macro *)
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let mk_instance m =
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  let used name =
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       (List.exists (fun v -> v.var_id = name) m.mstep.step_inputs)
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    || (List.exists (fun v -> v.var_id = name) m.mmemory) in
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  mk_new_name used "inst"
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(* Generation of a non-clashing name for the attribute variable of static allocation macro *)
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let mk_attribute m =
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  let used name =
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       (List.exists (fun v -> v.var_id = name) m.mstep.step_inputs)
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    || (List.exists (fun v -> v.var_id = name) m.mmemory) in
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  mk_new_name used "attr"
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let mk_call_var_decl loc id =
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  { var_id = id;
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    var_orig = false;
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    var_dec_type = mktyp Location.dummy_loc Tydec_any;
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    var_dec_clock = mkclock Location.dummy_loc Ckdec_any;
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    var_dec_const = false;
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    var_dec_value = None;
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    var_type = Type_predef.type_arrow (Types.new_var ()) (Types.new_var ());
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    var_clock = Clocks.new_var true;
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    var_loc = loc }
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(* counter for loop variable creation *)
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let loop_cpt = ref (-1)
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let reset_loop_counter () =
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 loop_cpt := -1
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let mk_loop_var m () =
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  let vars = m.mstep.step_inputs@m.mstep.step_outputs@m.mstep.step_locals@m.mmemory in
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  let rec aux () =
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    incr loop_cpt;
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    let s = Printf.sprintf "__%s_%d" "i" !loop_cpt in
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    if List.exists (fun v -> v.var_id = s) vars then aux () else s
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  in aux ()
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(*
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let addr_cpt = ref (-1)
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let reset_addr_counter () =
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 addr_cpt := -1
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let mk_addr_var m var =
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  let vars = m.mmemory in
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  let rec aux () =
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    incr addr_cpt;
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    let s = Printf.sprintf "%s_%s_%d" var "addr" !addr_cpt in
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    if List.exists (fun v -> v.var_id = s) vars then aux () else s
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  in aux ()
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*)
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let pp_global_init_name fmt id = fprintf fmt "%s_INIT" id
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let pp_global_clear_name fmt id = fprintf fmt "%s_CLEAR" id
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let pp_machine_memtype_name fmt id = fprintf fmt "struct %s_mem" id
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let pp_machine_regtype_name fmt id = fprintf fmt "struct %s_reg" id
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let pp_machine_alloc_name fmt id = fprintf fmt "%s_alloc" id
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let pp_machine_static_declare_name fmt id = fprintf fmt "%s_DECLARE" id
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let pp_machine_static_link_name fmt id = fprintf fmt "%s_LINK" id
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let pp_machine_static_alloc_name fmt id = fprintf fmt "%s_ALLOC" id
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let pp_machine_reset_name fmt id = fprintf fmt "%s_reset" id
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let pp_machine_init_name fmt id = fprintf fmt "%s_init" id
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let pp_machine_clear_name fmt id = fprintf fmt "%s_clear" id
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let pp_machine_step_name fmt id = fprintf fmt "%s_step" id
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let rec pp_c_dimension fmt dim =
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  match dim.Dimension.dim_desc with
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  | Dimension.Dident id       ->
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    fprintf fmt "%s" id
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  | Dimension.Dint i          ->
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    fprintf fmt "%d" i
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  | Dimension.Dbool b         ->
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    fprintf fmt "%B" b
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  | Dimension.Dite (i, t, e)  ->
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    fprintf fmt "((%a)?%a:%a)"
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       pp_c_dimension i pp_c_dimension t pp_c_dimension e
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 | Dimension.Dappl (f, args) ->
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     fprintf fmt "%a" (Basic_library.pp_c f pp_c_dimension) args
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 | Dimension.Dlink dim' -> fprintf fmt "%a" pp_c_dimension dim'
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 | Dimension.Dvar       -> fprintf fmt "_%s" (Utils.name_of_dimension dim.Dimension.dim_id)
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 | Dimension.Dunivar    -> fprintf fmt "'%s" (Utils.name_of_dimension dim.Dimension.dim_id)
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let is_basic_c_type t =
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  match (Types.repr t).Types.tdesc with
124
  | Types.Tbool | Types.Treal | Types.Tint  -> true
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  | _                                       -> false
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127
let pp_basic_c_type fmt t =
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  match (Types.repr t).Types.tdesc with
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  | Types.Tbool                    -> fprintf fmt "_Bool"
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  | Types.Treal when !Options.mpfr -> fprintf fmt "%s" Mpfr.mpfr_t
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  | Types.Treal                    -> fprintf fmt "double"
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  | Types.Tint                     -> fprintf fmt "int"
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  | _ -> assert false (* Not a basic C type. Do not handle arrays or pointers *)
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let pp_c_type var fmt t =
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  let rec aux t pp_suffix =
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    match (Types.repr t).Types.tdesc with
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    | Types.Tclock t'       -> aux t' pp_suffix
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    | Types.Tbool | Types.Tint | Types.Treal
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                            -> fprintf fmt "%a %s%a" pp_basic_c_type t var pp_suffix ()
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    | Types.Tarray (d, t')  ->
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      let pp_suffix' fmt () = fprintf fmt "%a[%a]" pp_suffix () pp_c_dimension d in
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      aux t' pp_suffix'
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    | Types.Tstatic (_, t') -> fprintf fmt "const "; aux t' pp_suffix
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    | Types.Tconst ty       -> fprintf fmt "%s %s" ty var
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    | Types.Tarrow (_, _)   -> fprintf fmt "void (*%s)()" var
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    | _                     -> eprintf "internal error: C_backend_common.pp_c_type %a@." Types.print_ty t; assert false
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  in aux t (fun fmt () -> ())
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(*
150
let rec pp_c_initialize fmt t = 
151
  match (Types.repr t).Types.tdesc with
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  | Types.Tint -> pp_print_string fmt "0"
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  | Types.Tclock t' -> pp_c_initialize fmt t'
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  | Types.Tbool -> pp_print_string fmt "0" 
155
  | Types.Treal when not !Options.mpfr -> pp_print_string fmt "0."
156
  | Types.Tarray (d, t') when Dimension.is_dimension_const d ->
157
    fprintf fmt "{%a}"
158
      (Utils.fprintf_list ~sep:"," (fun fmt _ -> pp_c_initialize fmt t'))
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      (Utils.duplicate 0 (Dimension.size_const_dimension d))
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  | _ -> assert false
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 *)
162
let pp_c_tag fmt t =
163
 pp_print_string fmt (if t = tag_true then "1" else if t = tag_false then "0" else t)
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165
(* Prints a constant value *)
166
let rec pp_c_const fmt c =
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  match c with
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    | Const_int i     -> pp_print_int fmt i
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    | Const_real (c,e,s)-> pp_print_string fmt s (* Format.fprintf fmt "%ie%i" c e*)
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    (* | Const_float r   -> pp_print_float fmt r *)
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    | Const_tag t     -> pp_c_tag fmt t
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    | Const_array ca  -> fprintf fmt "{%a }" (Utils.fprintf_list ~sep:", " pp_c_const) ca
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    | Const_struct fl -> fprintf fmt "{%a }" (Utils.fprintf_list ~sep:", " (fun fmt (f, c) -> pp_c_const fmt c)) fl
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    | Const_string _ -> assert false (* string occurs in annotations not in C *)
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(* Prints a value expression [v], with internal function calls only.
177
   [pp_var] is a printer for variables (typically [pp_c_var_read]),
178
   but an offset suffix may be added for array variables
179
*)
180
let rec pp_c_val self pp_var fmt v =
181
  match v.value_desc with
182
  | Cst c         -> pp_c_const fmt c
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  | Array vl      -> fprintf fmt "{%a}" (Utils.fprintf_list ~sep:", " (pp_c_val self pp_var)) vl
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  | Access (t, i) -> fprintf fmt "%a[%a]" (pp_c_val self pp_var) t (pp_c_val self pp_var) i
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  | Power (v, n)  -> (Format.eprintf "internal error: C_backend_common.pp_c_val %a@." pp_val v; assert false)
186
  | LocalVar v    -> pp_var fmt v
187
  | StateVar v    ->
188
    (* array memory vars are represented by an indirection to a local var with the right type,
189
       in order to avoid casting everywhere. *)
190
    if Types.is_array_type v.var_type && not (Types.is_real_type v.var_type && !Options.mpfr)
191
    then fprintf fmt "%a" pp_var v
192
    else fprintf fmt "%s->_reg.%a" self pp_var v
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  | Fun (n, vl)   -> Basic_library.pp_c n (pp_c_val self pp_var) fmt vl
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195
(* Access to the value of a variable:
196
   - if it's not a scalar output, then its name is enough
197
   - otherwise, dereference it (it has been declared as a pointer,
198
     despite its scalar Lustre type)
199
   - moreover, dereference memory array variables.
200
*)
201
let pp_c_var_read m fmt id =
202
  (* mpfr_t is a static array, not treated as general arrays *)
203
  if Types.is_address_type id.var_type
204
  then
205
    if is_memory m id && not (Types.is_real_type id.var_type && !Options.mpfr)
206
    then fprintf fmt "(*%s)" id.var_id
207
    else fprintf fmt "%s" id.var_id
208
  else
209
    if is_output m id
210
    then fprintf fmt "*%s" id.var_id
211
    else fprintf fmt "%s" id.var_id
212

    
213
(* Addressable value of a variable, the one that is passed around in calls:
214
   - if it's not a scalar non-output, then its name is enough
215
   - otherwise, reference it (it must be passed as a pointer,
216
     despite its scalar Lustre type)
217
*)
218
let pp_c_var_write m fmt id =
219
  if Types.is_address_type id.var_type
220
  then
221
    fprintf fmt "%s" id.var_id
222
  else
223
    if is_output m id
224
    then
225
      fprintf fmt "%s" id.var_id
226
    else
227
      fprintf fmt "&%s" id.var_id
228

    
229
(* Declaration of an input variable:
230
   - if its type is array/matrix/etc, then declare it as a mere pointer,
231
     in order to cope with unknown/parametric array dimensions, 
232
     as it is the case for generics
233
*)
234
let pp_c_decl_input_var fmt id =
235
  if !Options.ansi && Types.is_address_type id.var_type
236
  then pp_c_type (sprintf "(*%s)" id.var_id) fmt (Types.array_base_type id.var_type)
237
  else pp_c_type id.var_id fmt id.var_type
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239
(* Declaration of an output variable:
240
   - if its type is scalar, then pass its address
241
   - if its type is array/matrix/struct/etc, then declare it as a mere pointer,
242
     in order to cope with unknown/parametric array dimensions, 
243
     as it is the case for generics
244
*)
245
let pp_c_decl_output_var fmt id =
246
  if (not !Options.ansi) && Types.is_address_type id.var_type
247
  then pp_c_type                  id.var_id  fmt id.var_type
248
  else pp_c_type (sprintf "(*%s)" id.var_id) fmt (Types.array_base_type id.var_type)
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250
(* Declaration of a local/mem variable:
251
   - if it's an array/matrix/etc, its size(s) should be
252
     known in order to statically allocate memory, 
253
     so we print the full type
254
*)
255
let pp_c_decl_local_var m fmt id =
256
  if id.var_dec_const
257
  then
258
    Format.fprintf fmt "%a = %a"
259
      (pp_c_type id.var_id) id.var_type
260
      (pp_c_val "" (pp_c_var_read m)) (get_const_assign m id)
261
  else
262
    Format.fprintf fmt "%a"
263
      (pp_c_type id.var_id) id.var_type
264

    
265
let pp_c_decl_array_mem self fmt id =
266
  fprintf fmt "%a = (%a) (%s->_reg.%s)"
267
    (pp_c_type (sprintf "(*%s)" id.var_id)) id.var_type
268
    (pp_c_type "(*)") id.var_type
269
    self
270
    id.var_id
271

    
272
(* Declaration of a struct variable:
273
   - if it's an array/matrix/etc, we declare it as a pointer
274
*)
275
let pp_c_decl_struct_var fmt id =
276
  if Types.is_array_type id.var_type
277
  then pp_c_type (sprintf "(*%s)" id.var_id) fmt (Types.array_base_type id.var_type)
278
  else pp_c_type                  id.var_id  fmt id.var_type
279

    
280
let pp_c_decl_instance_var fmt (name, (node, static)) = 
281
  fprintf fmt "%a *%s" pp_machine_memtype_name (node_name node) name
282

    
283
let pp_c_checks self fmt m =
284
  Utils.fprintf_list ~sep:"" 
285
    (fun fmt (loc, check) -> 
286
      fprintf fmt 
287
	"@[<v>%a@,assert (%a);@]@," 
288
	Location.pp_c_loc loc
289
	(pp_c_val self (pp_c_var_read m)) check
290
    ) 
291
    fmt 
292
    m.mstep.step_checks
293

    
294
(********************************************************************************************)
295
(*                       Struct Printing functions                                          *)
296
(********************************************************************************************)
297

    
298
let pp_registers_struct fmt m =
299
  if m.mmemory <> []
300
  then
301
    fprintf fmt "@[%a {@[<v>%a;@ @]}@] _reg; "
302
      pp_machine_regtype_name m.mname.node_id
303
      (Utils.fprintf_list ~sep:";@ " pp_c_decl_struct_var) m.mmemory
304
  else
305
    ()
306

    
307
let print_machine_struct fmt m =
308
  if fst (get_stateless_status m) then
309
    begin
310
    end
311
  else
312
    begin
313
      (* Define struct *)
314
      fprintf fmt "@[%a {@[<v>%a%t%a%t@]};@]@."
315
	pp_machine_memtype_name m.mname.node_id
316
	pp_registers_struct m
317
	(Utils.pp_final_char_if_non_empty "@ " m.mmemory)
318
	(Utils.fprintf_list ~sep:";@ " pp_c_decl_instance_var) m.minstances
319
	(Utils.pp_final_char_if_non_empty ";@ " m.minstances)
320
    end
321

    
322
let print_machine_struct_from_header fmt inode =
323
  if inode.nodei_stateless then
324
    begin
325
    end
326
  else
327
    begin
328
      (* Declare struct *)
329
      fprintf fmt "@[%a;@]@."
330
	pp_machine_memtype_name inode.nodei_id
331
    end
332

    
333
(********************************************************************************************)
334
(*                      Prototype Printing functions                                        *)
335
(********************************************************************************************)
336

    
337
let print_global_init_prototype fmt baseNAME =
338
  fprintf fmt "void %a ()"
339
    pp_global_init_name baseNAME
340

    
341
let print_global_clear_prototype fmt baseNAME =
342
  fprintf fmt "void %a ()"
343
    pp_global_clear_name baseNAME
344

    
345
let print_alloc_prototype fmt (name, static) =
346
  fprintf fmt "%a * %a (%a)"
347
    pp_machine_memtype_name name
348
    pp_machine_alloc_name name
349
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_input_var) static
350

    
351
let print_reset_prototype self fmt (name, static) =
352
  fprintf fmt "void %a (@[<v>%a%t%a *%s@])"
353
    pp_machine_reset_name name
354
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_input_var) static
355
    (Utils.pp_final_char_if_non_empty ",@," static) 
356
    pp_machine_memtype_name name
357
    self
358

    
359
let print_init_prototype self fmt (name, static) =
360
  fprintf fmt "void %a (@[<v>%a%t%a *%s@])"
361
    pp_machine_init_name name
362
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_input_var) static
363
    (Utils.pp_final_char_if_non_empty ",@," static) 
364
    pp_machine_memtype_name name
365
    self
366

    
367
let print_clear_prototype self fmt (name, static) =
368
  fprintf fmt "void %a (@[<v>%a%t%a *%s@])"
369
    pp_machine_clear_name name
370
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_input_var) static
371
    (Utils.pp_final_char_if_non_empty ",@," static) 
372
    pp_machine_memtype_name name
373
    self
374

    
375
let print_stateless_prototype fmt (name, inputs, outputs) =
376
  fprintf fmt "void %a (@[<v>@[%a%t@]@,@[%a@]@,@])"
377
    pp_machine_step_name name
378
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_input_var) inputs
379
    (Utils.pp_final_char_if_non_empty ",@ " inputs) 
380
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_output_var) outputs
381

    
382
let print_step_prototype self fmt (name, inputs, outputs) =
383
  fprintf fmt "void %a (@[<v>@[%a%t@]@,@[%a@]%t@[%a *%s@]@])"
384
    pp_machine_step_name name
385
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_input_var) inputs
386
    (Utils.pp_final_char_if_non_empty ",@ " inputs) 
387
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_output_var) outputs
388
    (Utils.pp_final_char_if_non_empty ",@," outputs) 
389
    pp_machine_memtype_name name
390
    self
391

    
392
let print_stateless_C_prototype fmt (name, inputs, outputs) =
393
  let output = 
394
    match outputs with
395
    | [hd] -> hd
396
    | _ -> assert false
397
  in
398
  fprintf fmt "%a %s (@[<v>@[%a@]@,@])"
399
    pp_basic_c_type output.var_type
400
    name
401
    (Utils.fprintf_list ~sep:",@ " pp_c_decl_input_var) inputs
402
    
403
let print_import_init fmt (Dep (local, basename, _, _)) =
404
  if local then
405
    let baseNAME = file_to_module_name basename in
406
    fprintf fmt "%a();" pp_global_init_name baseNAME
407
  else ()
408

    
409
let print_import_clear fmt (Dep (local, basename, _, _)) =
410
  if local then
411
    let baseNAME = file_to_module_name basename in
412
    fprintf fmt "%a();" pp_global_clear_name baseNAME
413
  else ()
414

    
415
let print_import_prototype fmt (Dep (_, s, _, _)) =
416
  fprintf fmt "#include \"%s.h\"@," s
417

    
418
let print_import_alloc_prototype fmt (Dep (_, s, _, stateful)) =
419
  if stateful then
420
    fprintf fmt "#include \"%s_alloc.h\"@," s
421

    
422
let print_extern_alloc_prototypes fmt (Dep (_,_, header,_)) =
423
  List.iter (fun decl -> match decl.top_decl_desc with
424
  | ImportedNode ind when not ind.nodei_stateless ->
425
    let static = List.filter (fun v -> v.var_dec_const) ind.nodei_inputs
426
    in fprintf fmt "extern %a;@." print_alloc_prototype (ind.nodei_id, static)
427
  | _                -> ()
428
  ) header
429

    
430

    
431
let pp_c_main_var_input fmt id =  
432
  fprintf fmt "%s" id.var_id
433

    
434
let pp_c_main_var_output fmt id =
435
  if Types.is_address_type id.var_type
436
  then
437
    fprintf fmt "%s" id.var_id
438
  else
439
    fprintf fmt "&%s" id.var_id
440

    
441
let pp_main_call mname self fmt m (inputs: value_t list) (outputs: var_decl list) =
442
  if fst (get_stateless_status m)
443
  then
444
    fprintf fmt "%a (%a%t%a);"
445
      pp_machine_step_name mname
446
      (Utils.fprintf_list ~sep:", " (pp_c_val self pp_c_main_var_input)) inputs
447
      (Utils.pp_final_char_if_non_empty ", " inputs) 
448
      (Utils.fprintf_list ~sep:", " pp_c_main_var_output) outputs
449
  else
450
    fprintf fmt "%a (%a%t%a%t%s);"
451
      pp_machine_step_name mname
452
      (Utils.fprintf_list ~sep:", " (pp_c_val self pp_c_main_var_input)) inputs
453
      (Utils.pp_final_char_if_non_empty ", " inputs) 
454
      (Utils.fprintf_list ~sep:", " pp_c_main_var_output) outputs
455
      (Utils.pp_final_char_if_non_empty ", " outputs)
456
      self
457

    
458
let pp_c_var m self pp_var fmt var =
459
  if is_memory m var
460
  then
461
    pp_c_val self pp_var fmt (mk_val (StateVar var) var.var_type)
462
  else
463
    pp_c_val self pp_var fmt (mk_val (LocalVar var) var.var_type)
464

    
465
let pp_array_suffix fmt loop_vars =
466
  Utils.fprintf_list ~sep:"" (fun fmt v -> fprintf fmt "[%s]" v) fmt loop_vars
467

    
468
(* type directed initialization: useless wrt the lustre compilation model,
469
   except for MPFR injection, where values are dynamically allocated
470
*)
471
let pp_initialize m self pp_var fmt var =
472
  let rec aux indices fmt typ =
473
    if Types.is_array_type typ
474
    then
475
      let dim = Types.array_type_dimension typ in
476
      let idx = mk_loop_var m () in
477
      fprintf fmt "@[<v 2>{@,int %s;@,for(%s=0;%s<%a;%s++)@,%a @]@,}"
478
	idx idx idx pp_c_dimension dim idx
479
	(aux (idx::indices)) (Types.array_element_type typ)
480
    else
481
      let indices = List.rev indices in
482
      let pp_var_suffix fmt var =
483
	fprintf fmt "%a%a" (pp_c_var m self pp_var) var pp_array_suffix indices in
484
      Mpfr.pp_inject_init pp_var_suffix fmt var
485
  in
486
  if !Options.mpfr && Types.is_real_type (Types.array_base_type var.var_type)
487
  then
488
    begin
489
      reset_loop_counter ();
490
      aux [] fmt var.var_type
491
    end
492

    
493
let pp_const_initialize pp_var fmt const =
494
  let var = mk_val (LocalVar (Corelang.var_decl_of_const const)) const.const_type in
495
  let rec aux indices value fmt typ =
496
    if Types.is_array_type typ
497
    then
498
      let dim = Types.array_type_dimension typ in
499
      let szl = Utils.enumerate (Dimension.size_const_dimension dim) in
500
      let typ' = Types.array_element_type typ in
501
      let value = match value with
502
	| Const_array ca -> List.nth ca
503
	| _                      -> assert false in
504
      fprintf fmt "%a"
505
	(Utils.fprintf_list ~sep:"@," (fun fmt i -> aux (string_of_int i::indices) (value i) fmt typ')) szl
506
    else
507
      let indices = List.rev indices in
508
      let pp_var_suffix fmt var =
509
	fprintf fmt "%a%a" (pp_c_val "" pp_var) var pp_array_suffix indices in
510
      begin
511
	Mpfr.pp_inject_init pp_var_suffix fmt var;
512
	fprintf fmt "@,";
513
	Mpfr.pp_inject_real pp_var_suffix pp_c_const fmt var value
514
      end
515
  in
516
  if !Options.mpfr && Types.is_real_type (Types.array_base_type const.const_type)
517
  then
518
    begin
519
      reset_loop_counter ();
520
      aux [] const.const_value fmt const.const_type
521
    end
522

    
523
(* type directed clear: useless wrt the lustre compilation model,
524
   except for MPFR injection, where values are dynamically allocated
525
*)
526
let pp_clear m self pp_var fmt var =
527
  let rec aux indices fmt typ =
528
    if Types.is_array_type typ
529
    then
530
      let dim = Types.array_type_dimension typ in
531
      let idx = mk_loop_var m () in
532
      fprintf fmt "@[<v 2>{@,int %s;@,for(%s=0;%s<%a;%s++)@,%a @]@,}"
533
	idx idx idx pp_c_dimension dim idx
534
	(aux (idx::indices)) (Types.array_element_type typ)
535
    else
536
      let indices = List.rev indices in
537
      let pp_var_suffix fmt var =
538
	fprintf fmt "%a%a" (pp_c_var m self pp_var) var pp_array_suffix indices in
539
      Mpfr.pp_inject_clear pp_var_suffix fmt var
540
  in
541
  if !Options.mpfr && Types.is_real_type (Types.array_base_type var.var_type)
542
  then
543
    begin
544
      reset_loop_counter ();
545
      aux [] fmt var.var_type
546
    end
547

    
548
let pp_const_clear pp_var fmt const =
549
  let m = Machine_code.empty_machine in
550
  let var = Corelang.var_decl_of_const const in
551
  let rec aux indices fmt typ =
552
    if Types.is_array_type typ
553
    then
554
      let dim = Types.array_type_dimension typ in
555
      let idx = mk_loop_var m () in
556
      fprintf fmt "@[<v 2>{@,int %s;@,for(%s=0;%s<%a;%s++)@,%a @]@,}"
557
	idx idx idx pp_c_dimension dim idx
558
	(aux (idx::indices)) (Types.array_element_type typ)
559
    else
560
      let indices = List.rev indices in
561
      let pp_var_suffix fmt var =
562
	fprintf fmt "%a%a" (pp_c_var m "" pp_var) var pp_array_suffix indices in
563
      Mpfr.pp_inject_clear pp_var_suffix fmt var 
564
  in
565
  if !Options.mpfr && Types.is_real_type (Types.array_base_type var.var_type)
566
  then
567
    begin
568
      reset_loop_counter ();
569
      aux [] fmt var.var_type
570
    end
571

    
572
let pp_call m self pp_read pp_write fmt i (inputs: value_t list) (outputs: var_decl list) =
573
 try (* stateful node instance *)
574
   let (n,_) = List.assoc i m.minstances in
575
   fprintf fmt "%a (%a%t%a%t%s->%s);"
576
     pp_machine_step_name (node_name n)
577
     (Utils.fprintf_list ~sep:", " (pp_c_val self pp_read)) inputs
578
     (Utils.pp_final_char_if_non_empty ", " inputs) 
579
     (Utils.fprintf_list ~sep:", " pp_write) outputs
580
     (Utils.pp_final_char_if_non_empty ", " outputs)
581
     self
582
     i
583
 with Not_found -> (* stateless node instance *)
584
   let (n,_) = List.assoc i m.mcalls in
585
   fprintf fmt "%a (%a%t%a);"
586
     pp_machine_step_name (node_name n)
587
     (Utils.fprintf_list ~sep:", " (pp_c_val self pp_read)) inputs
588
     (Utils.pp_final_char_if_non_empty ", " inputs) 
589
     (Utils.fprintf_list ~sep:", " pp_write) outputs 
590

    
591
let pp_basic_instance_call m self fmt i (inputs: value_t list) (outputs: var_decl list) =
592
  pp_call m self (pp_c_var_read m) (pp_c_var_write m) fmt i inputs outputs
593
(*
594
 try (* stateful node instance *)
595
   let (n,_) = List.assoc i m.minstances in
596
   fprintf fmt "%a (%a%t%a%t%s->%s);"
597
     pp_machine_step_name (node_name n)
598
     (Utils.fprintf_list ~sep:", " (pp_c_val self (pp_c_var_read m))) inputs
599
     (Utils.pp_final_char_if_non_empty ", " inputs) 
600
     (Utils.fprintf_list ~sep:", " (pp_c_var_write m)) outputs
601
     (Utils.pp_final_char_if_non_empty ", " outputs)
602
     self
603
     i
604
 with Not_found -> (* stateless node instance *)
605
   let (n,_) = List.assoc i m.mcalls in
606
   fprintf fmt "%a (%a%t%a);"
607
     pp_machine_step_name (node_name n)
608
     (Utils.fprintf_list ~sep:", " (pp_c_val self (pp_c_var_read m))) inputs
609
     (Utils.pp_final_char_if_non_empty ", " inputs) 
610
     (Utils.fprintf_list ~sep:", " (pp_c_var_write m)) outputs 
611
*)
612

    
613
let pp_instance_call m self fmt i (inputs: value_t list) (outputs: var_decl list) =
614
  let pp_offset pp_var indices fmt var =
615
    match indices with
616
    | [] -> fprintf fmt "%a" pp_var var
617
    | _  -> fprintf fmt "%a[%a]" pp_var var (Utils.fprintf_list ~sep:"][" pp_print_string) indices in
618
  let rec aux indices fmt typ =
619
    if Types.is_array_type typ
620
    then
621
      let dim = Types.array_type_dimension typ in
622
      let idx = mk_loop_var m () in
623
      fprintf fmt "@[<v 2>{@,int %s;@,for(%s=0;%s<%a;%s++)@,%a @]@,}"
624
	idx idx idx pp_c_dimension dim idx
625
	(aux (idx::indices)) (Types.array_element_type typ)
626
    else
627
      let pp_read  = pp_offset (pp_c_var_read  m) indices in
628
      let pp_write = pp_offset (pp_c_var_write m) indices in
629
      pp_call m self pp_read pp_write fmt i inputs outputs
630
  in
631
  begin
632
    reset_loop_counter ();
633
    aux [] fmt (List.hd inputs).value_type
634
  end
635

    
636
(* Local Variables: *)
637
(* compile-command:"make -C ../../.." *)
638
(* End: *)