| /* Array bounds checking. |
| Copyright (C) 2020-2021 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef GCC_GIMPLE_ARRAY_BOUNDS_H |
| #define GCC_GIMPLE_ARRAY_BOUNDS_H |
| |
| class array_bounds_checker |
| { |
| friend class check_array_bounds_dom_walker; |
| |
| public: |
| array_bounds_checker (struct function *fun, class vr_values *v) |
| : fun (fun), ranges (v) { } |
| void check (); |
| |
| private: |
| static tree check_array_bounds (tree *tp, int *walk_subtree, void *data); |
| bool check_array_ref (location_t, tree, bool ignore_off_by_one); |
| bool check_mem_ref (location_t, tree, bool ignore_off_by_one); |
| void check_addr_expr (location_t, tree); |
| const value_range *get_value_range (const_tree op); |
| |
| struct function *fun; |
| class vr_values *ranges; |
| }; |
| |
| #endif // GCC_GIMPLE_ARRAY_BOUNDS_H |