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39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
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/*===----------------------- clzerointrin.h - CLZERO ----------------------===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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*===-----------------------------------------------------------------------===
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*/
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#ifndef __X86INTRIN_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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/// Zeroes out the cache line for the address \a __line. This uses a
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/// non-temporal store. Calling \c _mm_sfence() afterward might be needed
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/// to enforce ordering.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the \c CLZERO instruction.
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///
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/// \param __line
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/// An address within the cache line to zero 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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