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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/tree-hasher.h | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/tree-hasher.h')
-rw-r--r-- | gcc-4.9/gcc/tree-hasher.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/tree-hasher.h b/gcc-4.9/gcc/tree-hasher.h new file mode 100644 index 000000000..6b2800835 --- /dev/null +++ b/gcc-4.9/gcc/tree-hasher.h @@ -0,0 +1,59 @@ +/* Hash Table Helper for Trees + Copyright (C) 2012-2014 Free Software Foundation, Inc. + Contributed by Lawrence Crowl <crowl@google.com> + +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_TREE_HASHER_H +#define GCC_TREE_HASHER_H 1 + +#include "hash-table.h" + +struct int_tree_map { + unsigned int uid; + tree to; +}; + +/* Hashtable helpers. */ + +struct int_tree_hasher : typed_free_remove <int_tree_map> +{ + typedef int_tree_map value_type; + typedef int_tree_map compare_type; + static inline hashval_t hash (const value_type *); + static inline bool equal (const value_type *, const compare_type *); +}; + +/* Hash a UID in a int_tree_map. */ + +inline hashval_t +int_tree_hasher::hash (const value_type *item) +{ + return item->uid; +} + +/* Return true if the uid in both int tree maps are equal. */ + +inline bool +int_tree_hasher::equal (const value_type *a, const compare_type *b) +{ + return (a->uid == b->uid); +} + +typedef hash_table <int_tree_hasher> int_tree_htab_type; + +#endif /* GCC_TREE_HASHER_H */ |