1/* Header file for loop interation estimates. 2 Copyright (C) 2013-2015 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING3. If not see 18<http://www.gnu.org/licenses/>. */ 19 20#ifndef GCC_TREE_SSA_LOOP_NITER_H 21#define GCC_TREE_SSA_LOOP_NITER_H 22 23extern tree expand_simple_operations (tree, tree = NULL); 24extern bool loop_only_exit_p (const struct loop *, const_edge); 25extern bool number_of_iterations_exit (struct loop *, edge, 26 struct tree_niter_desc *niter, bool, 27 bool every_iteration = true); 28extern tree find_loop_niter (struct loop *, edge *); 29extern bool finite_loop_p (struct loop *); 30extern tree loop_niter_by_eval (struct loop *, edge); 31extern tree find_loop_niter_by_eval (struct loop *, edge *); 32extern bool estimated_loop_iterations (struct loop *, widest_int *); 33extern HOST_WIDE_INT estimated_loop_iterations_int (struct loop *); 34extern bool max_loop_iterations (struct loop *, widest_int *); 35extern HOST_WIDE_INT max_loop_iterations_int (struct loop *); 36extern HOST_WIDE_INT max_stmt_executions_int (struct loop *); 37extern HOST_WIDE_INT estimated_stmt_executions_int (struct loop *); 38extern bool max_stmt_executions (struct loop *, widest_int *); 39extern bool estimated_stmt_executions (struct loop *, widest_int *); 40extern void estimate_numbers_of_iterations (void); 41extern bool stmt_dominates_stmt_p (gimple, gimple); 42extern bool nowrap_type_p (tree); 43extern bool scev_probably_wraps_p (tree, tree, gimple, struct loop *, bool); 44extern void free_numbers_of_iterations_estimates_loop (struct loop *); 45extern void free_numbers_of_iterations_estimates (void); 46extern void substitute_in_loop_info (struct loop *, tree, tree); 47 48#endif /* GCC_TREE_SSA_LOOP_NITER_H */ 49