Can't we just use the compiler built-ins here? AFAIK, they (GCC, LLVM) use the same algorithm if the CPU doesn't support native CTZ. And they will pick the right instruction if CPU does have CTZ.
I get it that maybe it wasn't working so well 20 years ago, but we've increased compiler version requirements since then. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
