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(***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* Xavier Leroy, projet Gallium, INRIA Rocquencourt *)
(* Bill O'Farrell, IBM *)
(* *)
(* Copyright 2015 Institut National de Recherche en Informatique *)
(* et en Automatique. Copyright 2015 IBM (Bill O'Farrell with *)
(* help from Tristan Amini). All rights reserved. This file is *)
(* distributed under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* CSE for the Z Processor *)
open Arch
open Mach
open CSEgen
class cse = object (self)
inherit cse_generic as super
method! class_of_operation op =
match op with
| Ispecific(Imultaddf | Imultsubf) -> Op_pure
| _ -> super#class_of_operation op
method! is_cheap_operation op =
match op with
| Iconst_int n | Iconst_blockheader n ->
n >= -0x8000_0000n && n <= 0x7FFF_FFFFn
| _ -> false
end
let fundecl f =
(new cse)#fundecl f
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