| 1 | /* Measuring the complexity of svalues/regions. |
|---|
| 2 | Copyright (C) 2020-2024 Free Software Foundation, Inc. |
|---|
| 3 | Contributed by David Malcolm <dmalcolm@redhat.com>. |
|---|
| 4 | |
|---|
| 5 | This file is part of GCC. |
|---|
| 6 | |
|---|
| 7 | GCC is free software; you can redistribute it and/or modify it |
|---|
| 8 | under the terms of the GNU General Public License as published by |
|---|
| 9 | the Free Software Foundation; either version 3, or (at your option) |
|---|
| 10 | any later version. |
|---|
| 11 | |
|---|
| 12 | GCC is distributed in the hope that it will be useful, but |
|---|
| 13 | WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 15 | General Public License for more details. |
|---|
| 16 | |
|---|
| 17 | You should have received a copy of the GNU General Public License |
|---|
| 18 | along with GCC; see the file COPYING3. If not see |
|---|
| 19 | <http://www.gnu.org/licenses/>. */ |
|---|
| 20 | |
|---|
| 21 | #ifndef GCC_ANALYZER_COMPLEXITY_H |
|---|
| 22 | #define GCC_ANALYZER_COMPLEXITY_H |
|---|
| 23 | |
|---|
| 24 | namespace ana { |
|---|
| 25 | |
|---|
| 26 | /* A measurement of the complexity of an svalue or region, so that |
|---|
| 27 | we can impose bounds on the growth of these tree-like structures |
|---|
| 28 | and thus avoid infinite chains of analysis. */ |
|---|
| 29 | |
|---|
| 30 | struct complexity |
|---|
| 31 | { |
|---|
| 32 | complexity (unsigned num_nodes, unsigned max_depth) |
|---|
| 33 | : m_num_nodes (num_nodes), m_max_depth (max_depth) |
|---|
| 34 | {} |
|---|
| 35 | |
|---|
| 36 | complexity (const region *reg); |
|---|
| 37 | complexity (const svalue *sval); |
|---|
| 38 | static complexity from_pair (const complexity &c1, const complexity &c); |
|---|
| 39 | static complexity from_vec_svalue (const vec<const svalue *> &vec); |
|---|
| 40 | |
|---|
| 41 | /* The total number of svalues and regions in the tree of this |
|---|
| 42 | entity, including the entity itself. */ |
|---|
| 43 | unsigned m_num_nodes; |
|---|
| 44 | |
|---|
| 45 | /* The maximum depth of the tree of this entity, including the |
|---|
| 46 | entity itself. */ |
|---|
| 47 | unsigned m_max_depth; |
|---|
| 48 | }; |
|---|
| 49 | |
|---|
| 50 | } // namespace ana |
|---|
| 51 | |
|---|
| 52 | #endif /* GCC_ANALYZER_COMPLEXITY_H */ |
|---|
| 53 | |
|---|
