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(* SPDX-License-Identifier: AGPL-3.0-or-later *)
(* Copyright © 2021-2024 OCamlPro *)
(* Written by the Owi programmers *)

type t = Smtml.Expr.t

open Smtml.Expr

let of_concrete (v : Concrete_v128.t) : t =
  let a, b = Concrete_v128.to_i64x2 v in
  concat (Symbolic_i64.of_concrete a) (Symbolic_i64.of_concrete b)

let zero : t = of_concrete Concrete_v128.zero

let of_i32x4 a b c d = concat (concat a b) (concat c d)

let to_i32x4 v =
  let a = extract v ~low:12 ~high:16 in
  let b = extract v ~low:8 ~high:12 in
  let c = extract v ~low:4 ~high:8 in
  let d = extract v ~low:0 ~high:4 in
  (a, b, c, d)

let of_i64x2 a b = concat a b

let to_i64x2 v =
  let a = extract v ~low:8 ~high:16 in
  let b = extract v ~low:0 ~high:8 in
  (a, b)

let pp ppf v = pp ppf v