| 1 | /* Header file for loop interation estimates. |
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| 2 | Copyright (C) 2013-2023 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of GCC. |
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| 5 | |
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| 6 | GCC is free software; you can redistribute it and/or modify it under |
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| 7 | the terms of the GNU General Public License as published by the Free |
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| 8 | Software Foundation; either version 3, or (at your option) any later |
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| 9 | version. |
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| 10 | |
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| 11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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| 14 | for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with GCC; see the file COPYING3. If not see |
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| 18 | <http://www.gnu.org/licenses/>. */ |
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| 19 | |
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| 20 | #ifndef GCC_TREE_SSA_LOOP_NITER_H |
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| 21 | #define GCC_TREE_SSA_LOOP_NITER_H |
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| 22 | |
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| 23 | extern tree expand_simple_operations (tree, tree = NULL); |
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| 24 | extern tree simplify_using_initial_conditions (class loop *, tree); |
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| 25 | extern bool loop_only_exit_p (const class loop *, basic_block *body, |
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| 26 | const_edge); |
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| 27 | extern bool number_of_iterations_exit (class loop *, edge, |
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| 28 | class tree_niter_desc *niter, bool, |
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| 29 | bool every_iteration = true, |
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| 30 | basic_block * = NULL); |
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| 31 | extern bool number_of_iterations_exit_assumptions (class loop *, edge, |
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| 32 | class tree_niter_desc *, |
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| 33 | gcond **, bool = true, |
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| 34 | basic_block * = NULL); |
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| 35 | extern tree find_loop_niter (class loop *, edge *); |
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| 36 | extern bool finite_loop_p (class loop *); |
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| 37 | extern tree loop_niter_by_eval (class loop *, edge); |
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| 38 | extern tree find_loop_niter_by_eval (class loop *, edge *); |
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| 39 | extern bool estimated_loop_iterations (class loop *, widest_int *); |
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| 40 | extern HOST_WIDE_INT estimated_loop_iterations_int (class loop *); |
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| 41 | extern bool max_loop_iterations (class loop *, widest_int *); |
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| 42 | extern HOST_WIDE_INT max_loop_iterations_int (class loop *); |
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| 43 | extern bool likely_max_loop_iterations (class loop *, widest_int *); |
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| 44 | extern HOST_WIDE_INT likely_max_loop_iterations_int (class loop *); |
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| 45 | extern HOST_WIDE_INT max_stmt_executions_int (class loop *); |
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| 46 | extern HOST_WIDE_INT likely_max_stmt_executions_int (class loop *); |
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| 47 | extern HOST_WIDE_INT estimated_stmt_executions_int (class loop *); |
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| 48 | extern bool max_stmt_executions (class loop *, widest_int *); |
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| 49 | extern bool likely_max_stmt_executions (class loop *, widest_int *); |
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| 50 | extern bool estimated_stmt_executions (class loop *, widest_int *); |
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| 51 | extern void estimate_numbers_of_iterations (function *); |
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| 52 | extern void estimate_numbers_of_iterations (class loop *); |
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| 53 | extern bool stmt_dominates_stmt_p (gimple *, gimple *); |
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| 54 | extern bool nowrap_type_p (tree); |
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| 55 | extern bool scev_probably_wraps_p (tree, tree, tree, gimple *, |
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| 56 | class loop *, bool); |
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| 57 | extern void free_numbers_of_iterations_estimates (class loop *); |
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| 58 | extern void free_numbers_of_iterations_estimates (function *); |
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| 59 | extern tree simplify_replace_tree (tree, tree, |
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| 60 | tree, tree (*)(tree, void *) = NULL, |
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| 61 | void * = NULL, bool do_fold = true); |
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| 62 | extern void substitute_in_loop_info (class loop *, tree, tree); |
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| 63 | |
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| 64 | #endif /* GCC_TREE_SSA_LOOP_NITER_H */ |
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| 65 | |
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