From: "Rémi Denis-Courmont" <remi@remlab.net>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH] lavc/flacdsp: fix sign extension in R-V V wasted33
Date: Thu, 6 Jun 2024 22:22:54 +0300
Message-ID: <20240606192254.43845-1-remi@remlab.net> (raw)
We need to use either VWCVT.X.X.V or VSEXT.VF2. The later is preferable
to avoid changing VTYPE.
---
libavcodec/riscv/flacdsp_rvv.S | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/libavcodec/riscv/flacdsp_rvv.S b/libavcodec/riscv/flacdsp_rvv.S
index ea42f8bea4..1724aee9d7 100644
--- a/libavcodec/riscv/flacdsp_rvv.S
+++ b/libavcodec/riscv/flacdsp_rvv.S
@@ -163,12 +163,11 @@ func ff_flac_wasted33_rvv, zve64x
ret
2: // Pessimistic case: wasted >= 32
- vsetvli t0, a3, e32, m4, ta, ma
+ vsetvli t0, a3, e64, m8, ta, ma
vle32.v v8, (a1)
sub a3, a3, t0
- vwcvtu.x.x.v v16, v8
+ vsext.vf2 v16, v8
sh2add a1, t0, a1
- vsetvli zero, zero, e64, m8, ta, ma
vsll.vx v16, v16, a2
vse64.v v16, (a0)
sh3add a0, t0, a0
--
2.45.1
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
reply other threads:[~2024-06-06 19:23 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240606192254.43845-1-remi@remlab.net \
--to=remi@remlab.net \
--cc=ffmpeg-devel@ffmpeg.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
This inbox may be cloned and mirrored by anyone:
git clone --mirror https://master.gitmailbox.com/ffmpegdev/0 ffmpegdev/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 ffmpegdev ffmpegdev/ https://master.gitmailbox.com/ffmpegdev \
ffmpegdev@gitmailbox.com
public-inbox-index ffmpegdev
Example config snippet for mirrors.
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git