Mercurial > hg > CbC > CbC_gcc
comparison gcc/tree-hash-traits.h @ 145:1830386684a0
gcc-9.2.0
| author | anatofuz |
|---|---|
| date | Thu, 13 Feb 2020 11:34:05 +0900 |
| parents | 84e7813d76e9 |
| children |
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| 131:84e7813d76e9 | 145:1830386684a0 |
|---|---|
| 1 /* Traits for hashing trees. | 1 /* Traits for hashing trees. |
| 2 Copyright (C) 2014-2018 Free Software Foundation, Inc. | 2 Copyright (C) 2014-2020 Free Software Foundation, Inc. |
| 3 | 3 |
| 4 This file is part of GCC. | 4 This file is part of GCC. |
| 5 | 5 |
| 6 GCC is free software; you can redistribute it and/or modify it under | 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 | 7 the terms of the GNU General Public License as published by the Free |
| 39 const compare_type &t2) | 39 const compare_type &t2) |
| 40 { | 40 { |
| 41 return operand_equal_p (t1, t2, 0); | 41 return operand_equal_p (t1, t2, 0); |
| 42 } | 42 } |
| 43 | 43 |
| 44 /* Hasher for tree decls. Pointer equality is enough here, but the DECL_UID | |
| 45 is a better hash than the pointer value and gives a predictable traversal | |
| 46 order. */ | |
| 47 struct tree_decl_hash : ggc_ptr_hash <tree_node> | |
| 48 { | |
| 49 static inline hashval_t hash (tree); | |
| 50 }; | |
| 51 | |
| 52 inline hashval_t | |
| 53 tree_decl_hash::hash (tree t) | |
| 54 { | |
| 55 return DECL_UID (t); | |
| 56 } | |
| 57 | |
| 58 /* Hash for SSA_NAMEs in the same function. Pointer equality is enough | |
| 59 here, but the SSA_NAME_VERSION is a better hash than the pointer | |
| 60 value and gives a predictable traversal order. */ | |
| 61 struct tree_ssa_name_hash : ggc_ptr_hash <tree_node> | |
| 62 { | |
| 63 static inline hashval_t hash (tree); | |
| 64 }; | |
| 65 | |
| 66 inline hashval_t | |
| 67 tree_ssa_name_hash::hash (tree t) | |
| 68 { | |
| 69 return SSA_NAME_VERSION (t); | |
| 70 } | |
| 71 | |
| 72 /* Hasher for general trees, based on their TREE_HASH. */ | |
| 73 struct tree_hash : ggc_ptr_hash <tree_node> | |
| 74 { | |
| 75 static hashval_t hash (tree); | |
| 76 }; | |
| 77 | |
| 78 inline hashval_t | |
| 79 tree_hash::hash (tree t) | |
| 80 { | |
| 81 return TREE_HASH (t); | |
| 82 } | |
| 83 | |
| 84 #endif | 44 #endif |