From: "J . A . Magallon" <jamagallon@able.es>
To: Jakub Jelinek <jakub@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: beware of dead string constants
Date: Tue, 21 Nov 2000 21:51:45 +0100 [thread overview]
Message-ID: <20001121215145.C748@werewolf.able.es> (raw)
In-Reply-To: <14874.25691.629724.306563@wire.cadcamlab.org> <20001121071327.R1514@devserv.devel.redhat.com>
In-Reply-To: <20001121071327.R1514@devserv.devel.redhat.com>; from jakub@redhat.com on Tue, Nov 21, 2000 at 13:13:27 +0100
On Tue, 21 Nov 2000 13:13:27 Jakub Jelinek wrote:
> On Tue, Nov 21, 2000 at 06:02:35AM -0600, Peter Samuelson wrote:
> >
> > While trying to clean up some code recently (CONFIG_MCA, hi Jeff), I
> > discovered that gcc 2.95.2 (i386) does not remove dead string
> > constants:
> >
> > void foo (void)
> > {
> > if (0)
> > printk(KERN_INFO "bar");
> > }
> >
Is it related to opt level ? -O3 does auto-inlining and -O2 does not
(discovered that here, auto inlining in kernel trashes the cache...)
--
Juan Antonio Magallon Lacarta #> cd /pub
mailto:jamagallon@able.es #> more beer
Linux 2.2.18-pre22-vm #7 SMP Sun Nov 19 03:29:20 CET 2000 i686 unknown
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next prev parent reply other threads:[~2000-11-21 21:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-21 12:02 beware of dead string constants Peter Samuelson
2000-11-21 12:13 ` Jakub Jelinek
2000-11-21 12:24 ` Peter Samuelson
2000-11-21 20:51 ` J . A . Magallon [this message]
2000-11-22 1:14 ` Peter Samuelson
2000-11-22 8:27 ` Urban Widmark
-- strict thread matches above, loose matches on Subject: below --
2000-11-22 18:48 Michael Elizabeth Chastain
2000-11-23 13:06 ` Werner Almesberger
2000-11-23 23:29 Bernd Eckenfels
2000-11-23 23:39 ` Jeff Garzik
2000-11-24 3:36 ` Peter Samuelson
2000-11-24 4:15 ` Chris Wedgwood
2000-11-26 14:29 Bernd Eckenfels
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