linux-kernel - Re: [RFC] LZO1X de/compression support

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Date:	Tue, 22 May 2007 21:44:32 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Nitin Gupta <nitingupta910@...il.com>
cc:	Andrey Panin <pazke@...pac.ru>, linux-kernel@...r.kernel.org,
	Richard Purdie <richard@...nedhand.com>
Subject: Re: [RFC] LZO1X de/compression support


On May 22 2007 14:38, Nitin Gupta wrote:
> On 5/18/07, Andrey Panin <pazke@...pac.ru> wrote:
>> On 138, 05 18, 2007 at 03:28:31PM +0530, Nitin Gupta wrote:
>> > +     register const unsigned char *ip;
>> 
>> register keyword is meaningless for today's compiler.
>
> But can we assume that gcc is being used? What if we use compiler for
> which it does matter (can't give example for this...)?

How dumb must a compiler be? Although I cannot give an example either,
the register keyword MAY 'clog up' a register, making it harder for
cc to optimally use the whole register set. Imagine we had even less
regs than the x86(_32) already does.


	Jan
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