Le torstaina 15. kesäkuuta 2023, 13.36.45 EEST Peiting Shen a écrit : > From: Shen Peiting <shenpeit...@eswincomputing.com> > > Use RVB instruction clz to calculate the number of leading zeros of MSB > instead of av_log2. > > Benchmarks on Spike(cycles): > ac3_extract_exponents_c: 8226 > ac3_extract_exponents_rvb: 1167
FWIW, RV-Zbb can be benchmarked on real hardware. I would have done it already if only there was a checkasm case for this. -- Rémi Denis-Courmont http://www.remlab.net/ _______________________________________________ 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".
