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(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, Collège de France and Inria Paris *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU Lesser General Public License as *)
(* published by the Free Software Foundation, either version 2.1 of *)
(* the License, or (at your option) any later version. *)
(* This file is also distributed under the terms of the *)
(* INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
(** Platform-specific built-in functions *)
Require Import String Coqlib.
Require Import AST Integers Floats Values.
Require Import Builtins0.
Require ExtValues.
Inductive platform_builtin : Type :=
| BI_bits_of_float
| BI_bits_of_double
| BI_float_of_bits
| BI_double_of_bits.
Local Open Scope string_scope.
Definition platform_builtin_table : list (string * platform_builtin) :=
("__builtin_bits_of_float", BI_bits_of_float)
:: ("__builtin_bits_of_double", BI_bits_of_double)
:: ("__builtin_float_of_bits", BI_float_of_bits)
:: ("__builtin_double_of_bits", BI_double_of_bits)
:: nil.
Definition platform_builtin_sig (b: platform_builtin) : signature :=
match b with
| BI_bits_of_float => mksignature (Tsingle :: nil) Tint cc_default
| BI_bits_of_double => mksignature (Tfloat :: nil) Tlong cc_default
| BI_float_of_bits => mksignature (Tint :: nil) Tsingle cc_default
| BI_double_of_bits => mksignature (Tlong :: nil) Tfloat cc_default
end.
Definition platform_builtin_sem (b: platform_builtin) : builtin_sem (sig_res (platform_builtin_sig b)) :=
match b with
| BI_bits_of_float => mkbuiltin_n1t Tsingle Tint Float32.to_bits
| BI_bits_of_double => mkbuiltin_n1t Tfloat Tlong Float.to_bits
| BI_float_of_bits => mkbuiltin_n1t Tint Tsingle Float32.of_bits
| BI_double_of_bits => mkbuiltin_n1t Tlong Tfloat Float.of_bits
end.
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