1 /*===---- popcntintrin.h - POPCNT intrinsics -------------------------------===
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
24 #ifndef __POPCNT__
25 #error "POPCNT instruction set not enabled"
26 #endif
27
28 #ifndef _POPCNTINTRIN_H
29 #define _POPCNTINTRIN_H
30
31 static __inline__ int __attribute__((__always_inline__, __nodebug__))
_mm_popcnt_u32(unsigned int __A)32 _mm_popcnt_u32(unsigned int __A)
33 {
34 return __builtin_popcount(__A);
35 }
36
37 #ifdef __x86_64__
38 static __inline__ long long __attribute__((__always_inline__, __nodebug__))
_mm_popcnt_u64(unsigned long long __A)39 _mm_popcnt_u64(unsigned long long __A)
40 {
41 return __builtin_popcountll(__A);
42 }
43 #endif /* __x86_64__ */
44
45 #endif /* _POPCNTINTRIN_H */
46