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/* Array bounds checking.
Copyright (C) 2020 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
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