Gitly


1 /*
2  * Copyright (c) 2022 Ivan Maidanski
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to deal
6  * in the Software without restriction, including without limitation the rights
7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  * copies of the Software, and to permit persons to whom the Software is
9  * furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20  * SOFTWARE.
21  */
22 
23 /* As of clang-9, all __GCC_HAVE_SYNC_COMPARE_AND_SWAP_n are missing.   */
24 #define AO_GCC_FORCE_HAVE_CAS
25 
26 #if (__SIZEOF_SIZE_T__ == 4) \
27     || (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) && !defined(__clang__)) \
28     || (defined(__clang__) && __iset__ >= 5 /* elbrus-v5 or later */ \
29         && defined(AO_PREFER_BUILTIN_ATOMICS))
30   /* Note for 128-bit operations: clang reports warning                 */
31   /* "large atomic operation may incur significant performance penalty" */
32   /* and requires LDFLAGS="-latomic", thus this is not on by default.   */
33 # define AO_GCC_HAVE_double_SYNC_CAS
34 # include "../standard_ao_double_t.h"
35 #endif
36 
37 #include "generic.h"
38 
39 #undef AO_GCC_FORCE_HAVE_CAS
40 #undef AO_GCC_HAVE_double_SYNC_CAS
41

1	/*
2	* Copyright (c) 2022 Ivan Maidanski
3	*
4	* Permission is hereby granted, free of charge, to any person obtaining a copy
5	* of this software and associated documentation files (the "Software"), to deal
6	* in the Software without restriction, including without limitation the rights
7	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8	* copies of the Software, and to permit persons to whom the Software is
9	* furnished to do so, subject to the following conditions:
10	*
11	* The above copyright notice and this permission notice shall be included in
12	* all copies or substantial portions of the Software.
13	*
14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20	* SOFTWARE.
21	*/
22
23	/ As of clang-9, all __GCC_HAVE_SYNC_COMPARE_AND_SWAP_n are missing. /
24	#define AO_GCC_FORCE_HAVE_CAS
25
26	#if (__SIZEOF_SIZE_T__ == 4) \
27	\|\| (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) && !defined(__clang__)) \
28	\|\| (defined(__clang__) && __iset__ >= 5 / elbrus-v5 or later / \
29	&& defined(AO_PREFER_BUILTIN_ATOMICS))
30	/ Note for 128-bit operations: clang reports warning /
31	/ "large atomic operation may incur significant performance penalty" /
32	/ and requires LDFLAGS="-latomic", thus this is not on by default. /
33	# define AO_GCC_HAVE_double_SYNC_CAS
34	# include "../standard_ao_double_t.h"
35	#endif
36
37	#include "generic.h"
38
39	#undef AO_GCC_FORCE_HAVE_CAS
40	#undef AO_GCC_HAVE_double_SYNC_CAS
41