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Date: Mon, 12 Dec 2022 14:37:46 +0100
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Subject: Re: Missing optimization: mempcpy(3) vs memcpy(3)
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To: Alejandro Colomar <alx.manpages@gmail.com>, gcc@gcc.gnu.org
References: <fdc766b8-7cfd-806b-3602-53e1ba9b277e@gmail.com>
From: =?UTF-8?Q?Martin_Li=c5=a1ka?= <mliska@suse.cz>
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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