[FFmpeg-devel] [PATCH 3/3] lavc/svq1enc: R-V V ssd_int8_vs_int16

[flow gg]

Okay, I updated it in the reply

Rémi Denis-Courmont <remi at remlab.net> 于2024年1月17日周三 02:04写道：

> +        vsetvli      t0, a2, e8, m2, tu, ma
> +        vle8.v       v0, (a0)
> +        sub          a2, a2, t0
> +        vsetvli      zero, t0, e16, m4, tu, ma
> +        vle16.v      v8, (a1)
> +        vsetvli      zero, t0, e8, m2, tu, ma
> +        vwsub.wv     v16, v8, v0
> +        vsetvli      zero, t0, e16, m4, tu, ma
>
> It looks to me like the second vsetvli is unnecessary, and consequently
> the
> third as well. As for the later ones, please use `vsetvli zero, zero` if
> you
> intend to change SEW while preserving VL and the LMUL:SEW ratio.
>
> --
> 雷米‧德尼-库尔蒙
> http://www.remlab.net/
>
>
>
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