On Sun, Nov 12, 2017 at 9:59 PM, Rostislav Pehlivanov <atomnu...@gmail.com> wrote: > No longer needed as AUTO_REP_RET deals with it on normal RETs.
Only when the RET follows a branch instruction. If it's a branch target (that isn't by itself preceded by a branch instruction) there is no way of automatically detecting whether or not a rep prefix should be used as far as I know. On the other hand, the CPU:s where it even matters in the first place are old legacy stuff which aren't relevant any more and eliminating those few cases (if there are any, I didn't check) for simplicity is probably worth it anyway. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
