1 /* Header file for loop interation estimates.
2 Copyright (C) 2013-2021 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef GCC_TREE_SSA_LOOP_NITER_H
21 #define GCC_TREE_SSA_LOOP_NITER_H
23 extern tree
expand_simple_operations (tree
, tree
= NULL
);
24 extern tree
simplify_using_initial_conditions (class loop
*, tree
);
25 extern bool loop_only_exit_p (const class loop
*, basic_block
*body
,
27 extern bool number_of_iterations_exit (class loop
*, edge
,
28 class tree_niter_desc
*niter
, bool,
29 bool every_iteration
= true,
30 basic_block
* = NULL
);
31 extern bool number_of_iterations_exit_assumptions (class loop
*, edge
,
32 class tree_niter_desc
*,
33 gcond
**, bool = true,
34 basic_block
* = NULL
);
35 extern tree
find_loop_niter (class loop
*, edge
*);
36 extern bool finite_loop_p (class loop
*);
37 extern tree
loop_niter_by_eval (class loop
*, edge
);
38 extern tree
find_loop_niter_by_eval (class loop
*, edge
*);
39 extern bool estimated_loop_iterations (class loop
*, widest_int
*);
40 extern HOST_WIDE_INT
estimated_loop_iterations_int (class loop
*);
41 extern bool max_loop_iterations (class loop
*, widest_int
*);
42 extern HOST_WIDE_INT
max_loop_iterations_int (class loop
*);
43 extern bool likely_max_loop_iterations (class loop
*, widest_int
*);
44 extern HOST_WIDE_INT
likely_max_loop_iterations_int (class loop
*);
45 extern HOST_WIDE_INT
max_stmt_executions_int (class loop
*);
46 extern HOST_WIDE_INT
likely_max_stmt_executions_int (class loop
*);
47 extern HOST_WIDE_INT
estimated_stmt_executions_int (class loop
*);
48 extern bool max_stmt_executions (class loop
*, widest_int
*);
49 extern bool likely_max_stmt_executions (class loop
*, widest_int
*);
50 extern bool estimated_stmt_executions (class loop
*, widest_int
*);
51 extern void estimate_numbers_of_iterations (function
*);
52 extern void estimate_numbers_of_iterations (class loop
*);
53 extern bool stmt_dominates_stmt_p (gimple
*, gimple
*);
54 extern bool nowrap_type_p (tree
);
55 extern bool scev_probably_wraps_p (tree
, tree
, tree
, gimple
*,
57 extern void free_numbers_of_iterations_estimates (class loop
*);
58 extern void free_numbers_of_iterations_estimates (function
*);
59 extern tree
simplify_replace_tree (tree
, tree
,
60 tree
, tree (*)(tree
, void *) = NULL
,
61 void * = NULL
, bool do_fold
= true);
62 extern void substitute_in_loop_info (class loop
*, tree
, tree
);
64 #endif /* GCC_TREE_SSA_LOOP_NITER_H */