mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-03-23 07:10:30 +08:00
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* 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 */
|