Dan Albert | 287553d | 2017-02-16 10:47:51 -0800 | [diff] [blame] | 1 | /* Copyright (C) 2009-2014 Free Software Foundation, Inc. |
| 2 | |
| 3 | This file is part of GCC. |
| 4 | |
| 5 | GCC is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 3, or (at your option) |
| 8 | any later version. |
| 9 | |
| 10 | GCC is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | Under Section 7 of GPL version 3, you are granted additional |
| 16 | permissions described in the GCC Runtime Library Exception, version |
| 17 | 3.1, as published by the Free Software Foundation. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License and |
| 20 | a copy of the GCC Runtime Library Exception along with this program; |
| 21 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| 22 | <http://www.gnu.org/licenses/>. */ |
| 23 | |
| 24 | #ifndef _POPCNTINTRIN_H_INCLUDED |
| 25 | #define _POPCNTINTRIN_H_INCLUDED |
| 26 | |
| 27 | #ifndef __POPCNT__ |
| 28 | #pragma GCC push_options |
| 29 | #pragma GCC target("popcnt") |
| 30 | #define __DISABLE_POPCNT__ |
| 31 | #endif /* __POPCNT__ */ |
| 32 | |
| 33 | /* Calculate a number of bits set to 1. */ |
| 34 | extern __inline int __attribute__((__gnu_inline__, __always_inline__, __artificial__)) |
| 35 | _mm_popcnt_u32 (unsigned int __X) |
| 36 | { |
| 37 | return __builtin_popcount (__X); |
| 38 | } |
| 39 | |
| 40 | #ifdef __x86_64__ |
| 41 | extern __inline long long __attribute__((__gnu_inline__, __always_inline__, __artificial__)) |
| 42 | _mm_popcnt_u64 (unsigned long long __X) |
| 43 | { |
| 44 | return __builtin_popcountll (__X); |
| 45 | } |
| 46 | #endif |
| 47 | |
| 48 | #ifdef __DISABLE_POPCNT__ |
| 49 | #undef __DISABLE_POPCNT__ |
| 50 | #pragma GCC pop_options |
| 51 | #endif /* __DISABLE_POPCNT__ */ |
| 52 | |
| 53 | #endif /* _POPCNTINTRIN_H_INCLUDED */ |