50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
/* Array bounds checking.
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Copyright (C) 2020-2023 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_GIMPLE_ARRAY_BOUNDS_H
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#define GCC_GIMPLE_ARRAY_BOUNDS_H
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#include "pointer-query.h"
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class array_bounds_checker
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{
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friend class check_array_bounds_dom_walker;
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public:
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array_bounds_checker (struct function *, range_query *);
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void check ();
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private:
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static tree check_array_bounds (tree *tp, int *walk_subtree, void *data);
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bool check_array_ref (location_t, tree, gimple *, bool ignore_off_by_one);
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bool check_mem_ref (location_t, tree, bool ignore_off_by_one);
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void check_addr_expr (location_t, tree, gimple *);
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const value_range *get_value_range (const_tree op, gimple *);
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/* Current function. */
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struct function *fun;
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/* A pointer_query object to store information about pointers and
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their targets in. */
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pointer_query m_ptr_qry;
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/* Current statement. */
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gimple *m_stmt;
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};
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#endif // GCC_GIMPLE_ARRAY_BOUNDS_H
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