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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 INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
Require Import Asmblock.
(** Oracle taking as input a basic block,
returns a basic block with its instruction reordered *)
Axiom schedule: bblock -> bblock.
(** Oracle taking as input a basic block
splits it into several bblocks (representing bundles *)
Axiom split: bblock -> list bblock.
(* TODO - separate the postpass_schedule in two phases *)
Definition postpass_schedule (lb : list bblock) : list bblock :=
match lb with
| nil => nil
| (cons b lb) => split (schedule b) ++ lb
end.
Definition transf_function (f: function) : function :=
mkfunction (fn_sig f) (postpass_schedule (fn_blocks f)).
Definition transf_fundef (f: fundef) : fundef :=
AST.transf_fundef transf_function f.
Definition transf_program (p: program) : program :=
AST.transform_program transf_fundef p.
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