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To: Jakub Jelinek <jakub@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Use __attribute__((malloc)) for gcc 3.2
References: <20020929152731.GA10631@averell>
	<20020929160113.K5659@devserv.devel.redhat.com>
From: Andi Kleen <ak@muc.de>
Date: 30 Sep 2002 02:04:02 +0200
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Jakub Jelinek <jakub@redhat.com> writes:

> On Sun, Sep 29, 2002 at 05:27:31PM +0200, Andi Kleen wrote:
> > 
> > gcc 3.2 has an __attribute__((malloc)) function attribute. It tells gcc
> > that a function returns newly allocated memory and that the return pointer
> > cannot alias with any other pointer in the parent function. This often
> > allows gcc to generate better code because the optimizer doesn't need take
> > pointer aliasing in account.
> 
> Does this matter when the kernel is compiled with -fno-strict-aliasing?

I don't know. But it's certainly worth trying, isn't it ?  Giving the 
compiler more information can't be a bad thing.

-Andi
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