Sep 3, 2022, 21:59 by r...@remlab.net: > Le lauantaina 3. syyskuuta 2022, 22.20.20 EEST Lynne a écrit : > >> Sep 3, 2022, 21:01 by r...@remlab.net: >> > From: Rémi Denis-Courmont <r...@remlab.net> >> > >> > RVV defines a total of 12 different extensions: V, Zvl32b, Zvl64b, >> > Zvl128b, Zvl256b, Zvl512b, Zvl1024b, Zve32x, Zve32f, Zve64x, Zve64f and >> > Zve64d. >> > >> > At this stage, we don't care about the vector length extensions Zvl*, >> > as most or all optimisations will be running in a loop that is >> > independent on the data set size. >> >> I need to know the maximum length to write an FFT. >> Could you add flags for it? >> > > I think we should cross that bridge if/when the need actually arises. In most > cases, the vector length returned at run-time from VSETVL is good enough. >
I need to know the length in C, not assembly. Whilst you're at adding initial support, I think it makes sense to support all code that's targetting RISC-V, not just the ones it's convenient to. I'll probably write the FFT as soon as I get access to a real machine. _______________________________________________ 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".
