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| 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__)) |
| 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__)) |
| 39 _mm_popcnt_u64(unsigned long long __A) |
| 40 { |
| 41 return __builtin_popcountll(__A); |
| 42 } |
| 43 #endif /* __x86_64__ */ |
| 44 |
| 45 #endif /* _POPCNTINTRIN_H */ |
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