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(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris-Rocquencourt *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU General Public License as published by *)
(* the Free Software Foundation, either version 2 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. *)
(* *)
(* *********************************************************************)
(** All imports and definitions used by .v Clight files generated by clightgen *)
From Coq Require Import String List ZArith.
From compcert Require Import Integers Floats Maps Errors AST Ctypes Cop Clight.
Definition tvoid := Tvoid.
Definition tschar := Tint I8 Signed noattr.
Definition tuchar := Tint I8 Unsigned noattr.
Definition tshort := Tint I16 Signed noattr.
Definition tushort := Tint I16 Unsigned noattr.
Definition tint := Tint I32 Signed noattr.
Definition tuint := Tint I32 Unsigned noattr.
Definition tbool := Tint IBool Unsigned noattr.
Definition tlong := Tlong Signed noattr.
Definition tulong := Tlong Unsigned noattr.
Definition tfloat := Tfloat F32 noattr.
Definition tdouble := Tfloat F64 noattr.
Definition tptr (t: type) := Tpointer t noattr.
Definition tarray (t: type) (sz: Z) := Tarray t sz noattr.
Definition volatile_attr := {| attr_volatile := true; attr_alignas := None |}.
Definition tattr (a: attr) (ty: type) :=
match ty with
| Tvoid => Tvoid
| Tint sz si _ => Tint sz si a
| Tlong si _ => Tlong si a
| Tfloat sz _ => Tfloat sz a
| Tpointer elt _ => Tpointer elt a
| Tarray elt sz _ => Tarray elt sz a
| Tfunction args res cc => Tfunction args res cc
| Tstruct id _ => Tstruct id a
| Tunion id _ => Tunion id a
end.
Definition tvolatile (ty: type) := tattr volatile_attr ty.
Definition talignas (n: N) (ty: type) :=
tattr {| attr_volatile := false; attr_alignas := Some n |} ty.
Definition tvolatile_alignas (n: N) (ty: type) :=
tattr {| attr_volatile := true; attr_alignas := Some n |} ty.
Definition wf_composites (types: list composite_definition) : Prop :=
match build_composite_env types with OK _ => True | Error _ => False end.
Definition build_composite_env' (types: list composite_definition)
(WF: wf_composites types)
: { ce | build_composite_env types = OK ce }.
Proof.
revert WF. unfold wf_composites. case (build_composite_env types); intros.
- exists c; reflexivity.
- contradiction.
Defined.
Definition mkprogram (types: list composite_definition)
(defs: list (ident * globdef fundef type))
(public: list ident)
(main: ident)
(WF: wf_composites types) : Clight.program :=
let (ce, EQ) := build_composite_env' types WF in
{| prog_defs := defs;
prog_public := public;
prog_main := main;
prog_types := types;
prog_comp_env := ce;
prog_comp_env_eq := EQ |}.
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