1 /*===----------------------- clzerointrin.h - CLZERO ----------------------===
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4 * of this software and associated documentation files (the "Software"), to deal
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7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
10 * The above copyright notice and this permission notice shall be included in
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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,
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21 *===-----------------------------------------------------------------------===
24 #error "Never use <clzerointrin.h> directly; include <x86intrin.h> instead."
27 #ifndef _CLZEROINTRIN_H
28 #define _CLZEROINTRIN_H
30 /* Define the default attributes for the functions in this file. */
31 #define __DEFAULT_FN_ATTRS \
32 __attribute__((__always_inline__, __nodebug__, __target__("clzero")))
34 /// \brief Loads the cache line address and zero's out the cacheline
36 /// \headerfile <clzerointrin.h>
38 /// This intrinsic corresponds to the <c> CLZERO </c> instruction.
41 /// A pointer to a cacheline which needs to be zeroed out.
42 static __inline__ void __DEFAULT_FN_ATTRS
43 _mm_clzero (void * __line)
45 __builtin_ia32_clzero ((void *)__line);
48 #undef __DEFAULT_FN_ATTRS
50 #endif /* _CLZEROINTRIN_H */