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Date: Tue, 30 Dec 2003 00:11:21 -0800
From: Andrew Morton <akpm@osdl.org>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: manfred@colorfullife.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] optimize ia32 memmove
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Jeff Garzik <jgarzik@pobox.com> wrote:
>
> > "if dest is less that source, then call memcpy".  If the move is to a
>  > higher address we do it the old way.
> 
> 
>  I'm confused... that doesn't say anything to me about overlap.
> 

Overlap is OK if dest<src, because memcpy starts with the lowest address
and works upwards.