forked from OSchip/llvm-project
51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/*===----------------------- clzerointrin.h - CLZERO ----------------------===
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*===-----------------------------------------------------------------------===
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*/
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#if !defined __X86INTRIN_H && !defined __IMMINTRIN_H
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#error "Never use <clzerointrin.h> directly; include <x86intrin.h> instead."
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#endif
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#ifndef __CLZEROINTRIN_H
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#define __CLZEROINTRIN_H
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/* Define the default attributes for the functions in this file. */
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#define __DEFAULT_FN_ATTRS \
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__attribute__((__always_inline__, __nodebug__, __target__("clzero")))
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/// Loads the cache line address and zero's out the cacheline
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///
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/// \headerfile <clzerointrin.h>
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///
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/// This intrinsic corresponds to the <c> CLZERO </c> instruction.
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///
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/// \param __line
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/// A pointer to a cacheline which needs to be zeroed out.
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static __inline__ void __DEFAULT_FN_ATTRS
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_mm_clzero (void * __line)
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{
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__builtin_ia32_clzero ((void *)__line);
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}
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#undef __DEFAULT_FN_ATTRS
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#endif /* __CLZEROINTRIN_H */
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