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/*

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 * check NEON registers for clobbering

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 * Copyright (c) 2008 Ramiro Polla <[email protected]>

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 * Copyright (c) 2013 Martin Storsjo

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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_AARCH64_NEONTEST_H

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#define AVUTIL_AARCH64_NEONTEST_H

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#include <inttypes.h>

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#include <stdint.h>

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#include <stdlib.h>

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#include <stdarg.h>

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#include <string.h>

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#include "libavutil/bswap.h"

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#define storeneonregs(mem)                \

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    __asm__ volatile(                     \

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        "stp d8,  d9,  [%0]\n\t"          \

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        "stp d10, d11, [%0, #16]\n\t"     \

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        "stp d12, d13, [%0, #32]\n\t"     \

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        "stp d14, d15, [%0, #48]\n\t"     \

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        :: "r"(mem) : "memory")

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#define testneonclobbers(func, ctx, ...)                        \

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    uint64_t neon[2][8];                                        \

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    int ret;                                                    \

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    storeneonregs(neon[0]);                                     \

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    ret = __real_ ## func(ctx, __VA_ARGS__);                    \

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    storeneonregs(neon[1]);                                     \

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    if (memcmp(neon[0], neon[1], sizeof(neon[0]))) {            \

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        int i;                                                  \

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        av_log(ctx, AV_LOG_ERROR,                               \

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               "NEON REGS CLOBBERED IN %s!\n", #func);          \

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        for (i = 0; i < 8; i ++)                                \

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            if (neon[0][i] != neon[1][i]) {                     \

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                av_log(ctx, AV_LOG_ERROR,                       \

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                       "d%-2d = %016"PRIx64"\n",                \

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                       8 + i, av_bswap64(neon[0][i]));          \

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                av_log(ctx, AV_LOG_ERROR,                       \

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                       "   -> %016"PRIx64"\n",                  \

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                       av_bswap64(neon[1][i]));                 \

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            }                                                   \

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        abort();                                                \

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    }                                                           \

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    return ret

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#define wrap(func)      \

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int __real_ ## func;    \

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int __wrap_ ## func;    \

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int __wrap_ ## func

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#endif /* AVUTIL_AARCH64_NEONTEST_H */

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