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(**************************************************************************)
(* *)
(* OCaml *)
(* *)
(* Marcell Fischbach, University of Siegen *)
(* Benedikt Meurer, University of Siegen *)
(* *)
(* Copyright 2011 Lehrstuhl für Compilerbau und Softwareanalyse, *)
(* Universität Siegen. *)
(* *)
(* All rights reserved. This file is distributed under the terms of *)
(* the GNU Lesser General Public License version 2.1, with the *)
(* special exception on linking described in the file LICENSE. *)
(* *)
(**************************************************************************)
(* Live intervals for the linear scan register allocator. *)
type range =
{
mutable rbegin: int;
mutable rend: int;
}
type t =
{
mutable reg: Reg.t;
mutable ibegin: int;
mutable iend: int;
mutable ranges: range list;
}
type result =
{
intervals : t list;
fixed_intervals : t list;
}
val overlap: t -> t -> bool
val is_live: t -> int -> bool
val remove_expired_ranges: t -> int -> unit
val build_intervals: Mach.fundecl -> result
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