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Diffstat (limited to 'gcc/gimple-array-bounds.h')
| -rw-r--r-- | gcc/gimple-array-bounds.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/gimple-array-bounds.h b/gcc/gimple-array-bounds.h new file mode 100644 index 0000000..faa227d --- /dev/null +++ b/gcc/gimple-array-bounds.h @@ -0,0 +1,43 @@ +/* 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 |