zig/lib/include/clwbintrin.h
Andrew Kelley 49d1a4c562 move lib dirs to lib subdir
also start prefering NtDll API. so far:
 * NtQueryInformationFile
 * NtClose

adds a performance workaround for windows unicode conversion. but that
should probably be removed before merging
2019-07-15 17:54:50 -04:00

53 lines
2.1 KiB
C
Vendored

/*===---- clwbintrin.h - CLWB intrinsic ------------------------------------===
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*===-----------------------------------------------------------------------===
*/
#ifndef __IMMINTRIN_H
#error "Never use <clwbintrin.h> directly; include <immintrin.h> instead."
#endif
#ifndef __CLWBINTRIN_H
#define __CLWBINTRIN_H
/* Define the default attributes for the functions in this file. */
#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("clwb")))
/// Writes back to memory the cache line (if modified) that contains the
/// linear address specified in \a __p from any level of the cache hierarchy in
/// the cache coherence domain
///
/// \headerfile <immintrin.h>
///
/// This intrinsic corresponds to the <c> CLWB </c> instruction.
///
/// \param __p
/// A pointer to the memory location used to identify the cache line to be
/// written back.
static __inline__ void __DEFAULT_FN_ATTRS
_mm_clwb(void const *__p) {
__builtin_ia32_clwb(__p);
}
#undef __DEFAULT_FN_ATTRS
#endif