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      1 /*===------------- pkuintrin.h - PKU intrinsics ------------------===
      2  *
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a copy
      5  * of this software and associated documentation files (the "Software"), to deal
      6  * in the Software without restriction, including without limitation the rights
      7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      8  * copies of the Software, and to permit persons to whom the Software is
      9  * furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice shall be included in
     12  * all copies or substantial portions of the Software.
     13  *
     14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     20  * THE SOFTWARE.
     21  *
     22  *===-----------------------------------------------------------------------===
     23  */
     24 #ifndef __IMMINTRIN_H
     25 #error "Never use <pkuintrin.h> directly; include <immintrin.h> instead."
     26 #endif
     27 
     28 #ifndef __PKUINTRIN_H
     29 #define __PKUINTRIN_H
     30 
     31 /* Define the default attributes for the functions in this file. */
     32 #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("pku")))
     33 
     34 static __inline__ unsigned int __DEFAULT_FN_ATTRS
     35 _rdpkru_u32(void)
     36 {
     37   return __builtin_ia32_rdpkru();
     38 }
     39 
     40 static __inline__ void __DEFAULT_FN_ATTRS
     41 _wrpkru(unsigned int __val)
     42 {
     43   return __builtin_ia32_wrpkru(__val);
     44 }
     45 
     46 #undef __DEFAULT_FN_ATTRS
     47 
     48 #endif
     49