1/* Array bounds checking.
2 Copyright (C) 2020-2023 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 3, or (at your option)
9any later version.
10
11GCC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14GNU General Public License 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_GIMPLE_ARRAY_BOUNDS_H
21#define GCC_GIMPLE_ARRAY_BOUNDS_H
22
23#include "pointer-query.h"
24
25class array_bounds_checker
26{
27 friend class check_array_bounds_dom_walker;
28
29public:
30 array_bounds_checker (struct function *, range_query *);
31 void check ();
32
33private:
34 static tree check_array_bounds (tree *tp, int *walk_subtree, void *data);
35 bool check_array_ref (location_t, tree, gimple *, bool ignore_off_by_one);
36 bool check_mem_ref (location_t, tree, bool ignore_off_by_one);
37 void check_addr_expr (location_t, tree, gimple *);
38 void get_value_range (irange &r, const_tree op, gimple *);
39
40 /* Current function. */
41 struct function *fun;
42 /* A pointer_query object to store information about pointers and
43 their targets in. */
44 pointer_query m_ptr_qry;
45 /* Current statement. */
46 gimple *m_stmt;
47};
48
49#endif // GCC_GIMPLE_ARRAY_BOUNDS_H
50

source code of gcc/gimple-array-bounds.h