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52 lines
2.8 KiB
OCaml
52 lines
2.8 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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open Clocks
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open Minils
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(* Any clock variable left after clocking is free and should be set to level_ck.
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Since inputs and outputs are grounded to Cbase, this happens when
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no data dependence exists between an expression and the inputs/outputs.*)
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(* We are confident that it is sufficient to unify level_ck with base_ck
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for expressions having a base_ck == Cvar.
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The other ones are coming from one like this one,
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indeed if it was Con (Cvar,c,x) x would have to be defined with an expression of clock Cvar.*)
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let eq _ acc eq =
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let _ = match ck_repr eq.eq_base_ck with
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| Cvar {contents = Cindex _} -> unify_ck eq.eq_base_ck eq.eq_rhs.e_level_ck
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| _ -> ()
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in
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eq,acc (* no recursion since in minils exps are not recursive *)
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let program p =
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let funs = { Mls_mapfold.defaults with Mls_mapfold.eq = eq } in
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let p, _ = Mls_mapfold.program_it funs [] p in
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p
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