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  1. /*
  2.  * This file is part of FFmpeg.
  3.  *
  4.  * FFmpeg is free software; you can redistribute it and/or
  5.  * modify it under the terms of the GNU Lesser General Public
  6.  * License as published by the Free Software Foundation; either
  7.  * version 2.1 of the License, or (at your option) any later version.
  8.  *
  9.  * FFmpeg is distributed in the hope that it will be useful,
  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12.  * Lesser General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU Lesser General Public
  15.  * License along with FFmpeg; if not, write to the Free Software
  16.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17.  */
  18.  
  19. #include "libavutil/aarch64/asm.S"
  20.  
  21. function ff_prefetch_aarch64, export=1
  22.         subs            w2,  w2,  #2
  23.         prfm            pldl1strm, [x0]
  24.         prfm            pldl1strm, [x0,  x1]
  25.         add             x0,  x0,  x1,  lsl #1
  26.         b.gt            X(ff_prefetch_aarch64)
  27.         ret
  28. endfunc
  29.