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From: "Martin Storsjö" <martin@martin.st>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 1/4] configure: aarch64: Support assembling the dotprod and i8mm arch extensions
Date: Thu, 1 Jun 2023 14:04:17 +0300 (EEST)
Message-ID: <cc52a2c-5852-7486-c116-62f77d9a43@martin.st> (raw)
In-Reply-To: <7d1f4cab-bf50-b1fa-3dc6-b5996f6c32d@martin.st>

On Sun, 28 May 2023, Martin Storsjö wrote:

> The documentation for .arch_extension hints at it being possible to disable 
> support for extensions with it too, but that doesn't seem to be the case in 
> practice. If it was, we could add macros to only enable specifically the 
> extensions we want around those functions that should use them and nothing 
> more. But I guess if that's not actually supported we can't do that.

Actually, yes, this does work, it just uses a different syntax than I 
expected. To disable the extension <ext>, one can write the directive 
".arch_extension no<ext>".

Is the updated, less complex version of the configure patch more 
tolerable?

// Martin
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      parent reply	other threads:[~2023-06-01 11:04 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-26  8:03 Martin Storsjö
2023-05-26  8:03 ` [FFmpeg-devel] [PATCH 2/4] aarch64: Add cpu flags for the dotprod and i8mm extensions Martin Storsjö
2023-05-26  8:03 ` [FFmpeg-devel] [PATCH 3/4] aarch64: Add linux runtime cpu feature detection using getauxval(AT_HWCAP) Martin Storsjö
2023-05-27  9:04   ` Rémi Denis-Courmont
2023-05-27 20:35     ` Martin Storsjö
2023-05-28  5:58       ` Rémi Denis-Courmont
2023-05-26  8:03 ` [FFmpeg-devel] [PATCH 4/4] aarch64: Add Apple runtime detection of dotprod and i8mm using sysctl Martin Storsjö
2023-05-27  8:44 ` [FFmpeg-devel] [PATCH 1/4] configure: aarch64: Support assembling the dotprod and i8mm arch extensions Rémi Denis-Courmont
2023-05-27 21:34   ` Martin Storsjö
2023-05-28  5:50     ` Rémi Denis-Courmont
2023-05-30 12:25       ` Martin Storsjö
2023-05-31 16:29         ` Rémi Denis-Courmont
2023-06-01 11:04     ` Martin Storsjö [this message]

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