git.sesse.net Git - ffmpeg/blob - libavutil/x86/w64xmmtest.h

   1 /*
   2  * check XMM registers for clobbers on Win64
   3  * Copyright (c) 2008 Ramiro Polla <ramiro.polla@gmail.com>
   4  *
   5  * This file is part of Libav.
   6  *
   7  * Libav is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * Libav is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with Libav; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include <inttypes.h>
  23 #include <stdint.h>
  24 #include <stdlib.h>
  25 #include <stdarg.h>
  26 #include <string.h>
  27
  28 #include "libavutil/bswap.h"
  29
  30 #define storexmmregs(mem)               \
  31     __asm__ volatile(                   \
  32         "movups %%xmm6 , 0x00(%0)\n\t"  \
  33         "movups %%xmm7 , 0x10(%0)\n\t"  \
  34         "movups %%xmm8 , 0x20(%0)\n\t"  \
  35         "movups %%xmm9 , 0x30(%0)\n\t"  \
  36         "movups %%xmm10, 0x40(%0)\n\t"  \
  37         "movups %%xmm11, 0x50(%0)\n\t"  \
  38         "movups %%xmm12, 0x60(%0)\n\t"  \
  39         "movups %%xmm13, 0x70(%0)\n\t"  \
  40         "movups %%xmm14, 0x80(%0)\n\t"  \
  41         "movups %%xmm15, 0x90(%0)\n\t"  \
  42         :: "r"(mem) : "memory")
  43
  44 #define testxmmclobbers(func, ctx, ...)                         \
  45     uint64_t xmm[2][10][2];                                     \
  46     int ret;                                                    \
  47     storexmmregs(xmm[0]);                                       \
  48     ret = __real_ ## func(ctx, __VA_ARGS__);                    \
  49     storexmmregs(xmm[1]);                                       \
  50     if (memcmp(xmm[0], xmm[1], sizeof(xmm[0]))) {               \
  51         int i;                                                  \
  52         av_log(ctx, AV_LOG_ERROR,                               \
  53                "XMM REGS CLOBBERED IN %s!\n", #func);           \
  54         for (i = 0; i < 10; i ++)                               \
  55             if (xmm[0][i][0] != xmm[1][i][0] ||                 \
  56                 xmm[0][i][1] != xmm[1][i][1]) {                 \
  57                 av_log(ctx, AV_LOG_ERROR,                       \
  58                        "xmm%-2d = %016"PRIx64"%016"PRIx64"\n",  \
  59                        6 + i, av_bswap64(xmm[0][i][0]),         \
  60                        av_bswap64(xmm[0][i][1]));               \
  61                 av_log(ctx, AV_LOG_ERROR,                       \
  62                          "     -> %016"PRIx64"%016"PRIx64"\n",  \
  63                        av_bswap64(xmm[1][i][0]),                \
  64                        av_bswap64(xmm[1][i][1]));               \
  65             }                                                   \
  66         abort();                                                \
  67     }                                                           \
  68     return ret
  69
  70 #define wrap(func)      \
  71 int __real_ ## func;    \
  72 int __wrap_ ## func;    \
  73 int __wrap_ ## func