1 | /* Traits for hashing trees. |
2 | Copyright (C) 2014-2023 Free Software Foundation, Inc. |
3 | |
4 | This file is part of GCC. |
5 | |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free |
8 | Software Foundation; either version 3, or (at your option) any later |
9 | version. |
10 | |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
14 | for more details. |
15 | |
16 | You should have received a copy of the GNU General Public License |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ |
19 | |
20 | #ifndef tree_hash_traits_h |
21 | #define tree_hash_traits_h |
22 | |
23 | /* Hash for trees based on operand_equal_p. */ |
24 | struct tree_operand_hash : ggc_ptr_hash <tree_node> |
25 | { |
26 | static inline hashval_t hash (const value_type &); |
27 | static inline bool equal (const value_type &, |
28 | const compare_type &); |
29 | }; |
30 | |
31 | inline hashval_t |
32 | tree_operand_hash::hash (const value_type &t) |
33 | { |
34 | return iterative_hash_expr (tree: t, seed: 0); |
35 | } |
36 | |
37 | inline bool |
38 | tree_operand_hash::equal (const value_type &t1, |
39 | const compare_type &t2) |
40 | { |
41 | return operand_equal_p (t1, t2, flags: 0); |
42 | } |
43 | |
44 | #endif |
45 | |