mirror of https://git.ffmpeg.org/ffmpeg.git
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
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/*
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* Copyright (c) 2015 James Almer
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_X86_INTMATH_H
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#define AVUTIL_X86_INTMATH_H
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#include <stdint.h>
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#include "config.h"
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/* Our generic version of av_popcount is faster than GCC's built-in on
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* CPUs that don't support the popcnt instruction.
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*/
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#if defined(__GNUC__) && defined(__POPCNT__)
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#define av_popcount __builtin_popcount
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#if ARCH_X86_64
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#define av_popcount64 __builtin_popcountll
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#endif
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#endif /* defined(__GNUC__) && defined(__POPCNT__) */
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#endif /* AVUTIL_X86_INTMATH_H */
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