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