1 /*===----------------------- clzerointrin.h - CLZERO ----------------------=== 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 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 * THE SOFTWARE. 20 * 21 *===-----------------------------------------------------------------------=== 22 */ 23 #ifndef __X86INTRIN_H 24 #error "Never use <clzerointrin.h> directly; include <x86intrin.h> instead." 25 #endif 26 27 #ifndef _CLZEROINTRIN_H 28 #define _CLZEROINTRIN_H 29 30 /* Define the default attributes for the functions in this file. */ 31 #define __DEFAULT_FN_ATTRS \ 32 __attribute__((__always_inline__, __nodebug__, __target__("clzero"))) 33 34 /// \brief Loads the cache line address and zero's out the cacheline 35 /// 36 /// \headerfile <clzerointrin.h> 37 /// 38 /// This intrinsic corresponds to the <c> CLZERO </c> instruction. 39 /// 40 /// \param __line 41 /// A pointer to a cacheline which needs to be zeroed out. 42 static __inline__ void __DEFAULT_FN_ATTRS 43 _mm_clzero (void * __line) 44 { 45 __builtin_ia32_clzero ((void *)__line); 46 } 47 48 #undef __DEFAULT_FN_ATTRS 49 50 #endif /* _CLZEROINTRIN_H */ 51
