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From: "Martin Liška" <mliska@suse.cz>
To: Alejandro Colomar <alx.manpages@gmail.com>, gcc@gcc.gnu.org
Subject: Re: Missing optimization: mempcpy(3) vs memcpy(3)
Date: Mon, 12 Dec 2022 14:37:46 +0100	[thread overview]
Message-ID: <8f9d61cf-14a5-4099-e2b6-7c8cac47a28b@suse.cz> (raw)
In-Reply-To: <fdc766b8-7cfd-806b-3602-53e1ba9b277e@gmail.com>

On 12/9/22 18:11, Alejandro Colomar via Gcc wrote:
> I expect the compiler to be knowledgeable enough to call whatever is fastest, whatever it is, but be consistent in both cases.  However, here are the results:

Hi.

Note the glibc implementation of mempcpy typically uses (calls) memcpy, thus
I don't see any problem with the code snippets you provided.

Cheers,
Martin

  reply	other threads:[~2022-12-12 13:37 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-09 17:11 Alejandro Colomar
2022-12-12 13:37 ` Martin Liška [this message]
2022-12-12 13:44   ` Alejandro Colomar
2022-12-12 13:56     ` Jakub Jelinek
2022-12-12 14:05       ` Alejandro Colomar
2022-12-12 14:48         ` Jonathan Wakely
2022-12-12 14:53           ` Jakub Jelinek
2022-12-12 15:56             ` Alejandro Colomar
2022-12-12 16:09               ` Jakub Jelinek
2022-12-12 17:15                 ` Alejandro Colomar
2022-12-12 17:42                 ` Jonathan Wakely
2022-12-12 14:34 Wilco Dijkstra
2022-12-12 14:57 ` Cristian Rodríguez

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