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# 2 "asmcomp/power/CSE.ml"
(**************************************************************************)
(* *)
(* OCaml *)
(* *)
(* Xavier Leroy, projet Gallium, INRIA Rocquencourt *)
(* *)
(* Copyright 2014 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 version 2.1, with the *)
(* special exception on linking described in the file LICENSE. *)
(* *)
(**************************************************************************)
(* CSE for the PowerPC *)
open Arch
open Mach
open CSEgen
class cse = object
inherit cse_generic as super
method! class_of_operation op =
match op with
| Ispecific(Imultaddf | Imultsubf) -> Op_pure
| Ispecific(Ialloc_far _) | Ispecific(Ipoll_far _) -> Op_other
| _ -> super#class_of_operation op
method! is_cheap_operation op =
match op with
| Iconst_int n -> n <= 0x7FFF_FFFFn && n >= -0x8000_0000n
| _ -> false
end
let fundecl f =
(new cse)#fundecl f
|
