From: "Rémi Denis-Courmont" <remi@remlab.net>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 3/3] lavc/svq1enc: R-V V ssd_int8_vs_int16
Date: Tue, 16 Jan 2024 20:04:43 +0200
Message-ID: <3079800.pS2Zx2IOaJ@basile.remlab.net> (raw)
In-Reply-To: <CAEa-L+vxoZpYZXYBfU37av1ko=N4sb32=duW2Zq7BnqGztDjXg@mail.gmail.com>
+ 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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next prev parent reply other threads:[~2024-01-16 18:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-29 11:57 flow gg
2023-12-30 12:15 ` Rémi Denis-Courmont
2023-12-30 14:00 ` flow gg
2023-12-30 14:01 ` flow gg
2023-12-30 15:45 ` Rémi Denis-Courmont
2023-12-30 16:20 ` flow gg
2024-01-04 16:00 ` Rémi Denis-Courmont
2024-01-05 0:56 ` flow gg
2024-01-06 15:04 ` Rémi Denis-Courmont
2024-01-07 1:33 ` flow gg
2024-01-07 8:03 ` Rémi Denis-Courmont
2024-01-07 8:36 ` flow gg
2024-01-16 18:00 ` Rémi Denis-Courmont
2024-01-16 18:04 ` Rémi Denis-Courmont [this message]
2024-01-16 18:46 ` flow gg
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