1 /* Copyright (C) 2009 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 __POPCNT__ 25 # error "POPCNT instruction set not enabled" 26 #endif /* __POPCNT__ */ 27 28 #ifndef _POPCNTINTRIN_H_INCLUDED 29 #define _POPCNTINTRIN_H_INCLUDED 30 31 /* Calculate a number of bits set to 1. */ 32 extern __inline int __attribute__((__gnu_inline__, __always_inline__, __artificial__)) 33 _mm_popcnt_u32 (unsigned int __X) 34 { 35 return __builtin_popcount (__X); 36 } 37 38 #ifdef __x86_64__ 39 extern __inline long long __attribute__((__gnu_inline__, __always_inline__, __artificial__)) 40 _mm_popcnt_u64 (unsigned long long __X) 41 { 42 return __builtin_popcountll (__X); 43 } 44 #endif 45 46 #endif /* _POPCNTINTRIN_H_INCLUDED */ 47
