root / lab4 / .minix-src / include / clang-3.6 / popcntintrin.h @ 13
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1 | 13 | up20180614 | /*===---- popcntintrin.h - POPCNT intrinsics -------------------------------===
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2 | *
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3 | * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 | * of this software and associated documentation files (the "Software"), to deal
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5 | * in the Software without restriction, including without limitation the rights
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6 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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7 | * copies of the Software, and to permit persons to whom the Software is
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8 | * furnished to do so, subject to the following conditions:
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9 | *
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10 | * The above copyright notice and this permission notice shall be included in
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11 | * all copies or substantial portions of the Software.
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12 | *
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13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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18 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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19 | * THE SOFTWARE.
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20 | *
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21 | *===-----------------------------------------------------------------------===
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22 | */
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23 | |||
24 | #ifndef __POPCNT__
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25 | #error "POPCNT instruction set not enabled" |
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26 | #endif
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27 | |||
28 | #ifndef _POPCNTINTRIN_H
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29 | #define _POPCNTINTRIN_H
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30 | |||
31 | static __inline__ int __attribute__((__always_inline__, __nodebug__)) |
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32 | _mm_popcnt_u32(unsigned int __A) |
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33 | { |
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34 | return __builtin_popcount(__A);
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35 | } |
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36 | |||
37 | #ifdef __x86_64__
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38 | static __inline__ long long __attribute__((__always_inline__, __nodebug__)) |
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39 | _mm_popcnt_u64(unsigned long long __A) |
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40 | { |
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41 | return __builtin_popcountll(__A);
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42 | } |
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43 | #endif /* __x86_64__ */ |
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44 | |||
45 | #endif /* _POPCNTINTRIN_H */ |