I tested this in '[FFmpeg-devel] [PATCH] lavc/vc1dsp: R-V V inv_trans'. The logic here is the same, using vext can reduce vset, making it a bit faster
Rémi Denis-Courmont <r...@remlab.net> 于2024年2月13日周二 03:46写道： > Le keskiviikkona 31. tammikuuta 2024, 19.58.55 EET flow gg a écrit : > > Fixed the rv32 break in this reply > > It looks like widening add would avoid the sign extension. > > Although you'd need as many instructions, since V lacks signed to unsigned > clipping. > > -- > 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". > _______________________________________________ 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".
