This file is indexed.

/usr/lib/ocaml/compiler-libs/CSEgen.mli is in ocaml-compiler-libs 4.05.0-10ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
(**************************************************************************)
(*                                                                        *)
(*                                 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.          *)
(*                                                                        *)
(**************************************************************************)

(* Common subexpression elimination by value numbering over extended
   basic blocks. *)

type op_class =
  | Op_pure     (* pure, produce one result *)
  | Op_checkbound     (* checkbound-style: no result, can raise an exn *)
  | Op_load           (* memory load *)
  | Op_store of bool  (* memory store, false = init, true = assign *)
  | Op_other   (* anything else that does not allocate nor store in memory *)

class cse_generic : object
  (* The following methods can be overriden to handle processor-specific
     operations. *)

  method class_of_operation: Mach.operation -> op_class

  method is_cheap_operation: Mach.operation -> bool
    (* Operations that are so cheap that it isn't worth factoring them. *)

  (* The following method is the entry point and should not be overridden *)
  method fundecl: Mach.fundecl -> Mach.fundecl

end