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clwbintrin.h
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1 /*===---- clwbintrin.h - CLWB intrinsic ------------------------------------===
2  *
3  * Permission is hereby granted, free of charge, to any person obtaining a copy
4  * of this software and associated documentation files (the "Software"), to deal
5  * in the Software without restriction, including without limitation the rights
6  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7  * copies of the Software, and to permit persons to whom the Software is
8  * furnished to do so, subject to the following conditions:
9  *
10  * The above copyright notice and this permission notice shall be included in
11  * all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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19  * THE SOFTWARE.
20  *
21  *===-----------------------------------------------------------------------===
22  */
23 
24 #ifndef __IMMINTRIN_H
25 #error "Never use <clwbintrin.h> directly; include <immintrin.h> instead."
26 #endif
27 
28 #ifndef __CLWBINTRIN_H
29 #define __CLWBINTRIN_H
30 
31 /* Define the default attributes for the functions in this file. */
32 #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("clwb")))
33 
34 /// \brief Writes back to memory the cache line (if modified) that contains the
35 /// linear address specified in \a __p from any level of the cache hierarchy in
36 /// the cache coherence domain
37 ///
38 /// \headerfile <immintrin.h>
39 ///
40 /// This intrinsic corresponds to the <c> CLWB </c> instruction.
41 ///
42 /// \param __p
43 /// A pointer to the memory location used to identify the cache line to be
44 /// written back.
45 static __inline__ void __DEFAULT_FN_ATTRS
46 _mm_clwb(void const *__p) {
47  __builtin_ia32_clwb(__p);
48 }
49 
50 #undef __DEFAULT_FN_ATTRS
51 
52 #endif
static __inline unsigned char unsigned int unsigned int unsigned int * __p
Definition: adxintrin.h:38
static __inline__ void __DEFAULT_FN_ATTRS _mm_clwb(void const *__p)
Writes back to memory the cache line (if modified) that contains the linear address specified in __p ...
Definition: clwbintrin.h:46
#define __DEFAULT_FN_ATTRS
Definition: clwbintrin.h:32