intmath.h

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/*
 * Copyright (c) 2015 James Almer
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVUTIL_X86_INTMATH_H
#define AVUTIL_X86_INTMATH_H

#include <stdint.h>
#include "config.h"

/* Our generic version of av_popcount is faster than GCC's built-in on
 * CPUs that don't support the popcnt instruction.
 */
#if defined(__GNUC__) && defined(__POPCNT__)
    #define av_popcount   __builtin_popcount
#if ARCH_X86_64
    #define av_popcount64 __builtin_popcountll
#endif

#endif /* defined(__GNUC__) && defined(__POPCNT__) */

#endif /* AVUTIL_X86_INTMATH_H */