2 * Copyright (c) 2004 Hewlett-Packard Development Company, L.P.
3 * Copyright (c) 2013 Ivan Maidanski
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 /* Definitions for architectures on which AO_double_t loads and stores */
25 /* are atomic (either for suitably aligned data only or for any legal */
29 AO_double_load(const volatile AO_double_t *addr)
33 # ifdef AO_ACCESS_double_CHECK_ALIGNED
34 assert(((size_t)addr & (sizeof(AO_double_t) - 1)) == 0);
36 /* Cast away the volatile in case it adds fence semantics. */
37 result.AO_whole = ((const AO_double_t *)addr)->AO_whole;
40 #define AO_HAVE_double_load
43 AO_double_store(volatile AO_double_t *addr, AO_double_t new_val)
45 # ifdef AO_ACCESS_double_CHECK_ALIGNED
46 assert(((size_t)addr & (sizeof(AO_double_t) - 1)) == 0);
48 ((AO_double_t *)addr)->AO_whole = new_val.AO_whole;
50 #define AO_HAVE_double_store