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From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: esr@snark.thyrsus.com, rms@gnu.org, perry@piermont.com,
	emacs-devel@gnu.org, stephen@xemacs.org, dancol@dancol.org
Subject: Re: Defending GCC considered futile
Date: Wed, 11 Feb 2015 05:46:23 +0200	[thread overview]
Message-ID: <83mw4l6rg0.fsf@gnu.org> (raw)
In-Reply-To: <jwv386dnyvh.fsf-monnier+emacs@gnu.org>

> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: Daniel Colascione <dancol@dancol.org>, esr@snark.thyrsus.com,
>         stephen@xemacs.org, perry@piermont.com, rms@gnu.org,
>         emacs-devel@gnu.org
> Date: Tue, 10 Feb 2015 18:14:14 -0500
> 
> >> <optimized out>
> > -Og
> 
> I use -Og but still regularly see "optimized out".

That's because DWARF cannot express the location.  LLDB will hit the
same problems when the LLVM optimiziers start optimizing well enough
to compete with GCC.  Back in GCC 2.8 days, I could compile with -O2
and never see any such problems.



  reply	other threads:[~2015-02-11  3:46 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-07 20:29 Defending GCC considered futile Eric S. Raymond
2015-02-07 21:24 ` David Kastrup
2015-02-09  0:04   ` Richard Stallman
2015-02-07 22:30 ` Florian Weimer
2015-02-08 14:12   ` Stefan Monnier
2015-02-09 19:39     ` Florian Weimer
2015-02-09 22:04   ` Perry E. Metzger
2015-02-09  0:04 ` Richard Stallman
2015-02-09  4:13   ` Stefan Monnier
2015-02-09  5:50   ` Stephen J. Turnbull
2015-02-09 22:06     ` Richard Stallman
2015-02-09 22:24       ` Perry E. Metzger
2015-02-10  3:37         ` Eli Zaretskii
2015-02-10  8:30           ` Daniel Colascione
2015-02-10  8:47             ` Helmut Eller
2015-02-10 15:58               ` Eli Zaretskii
2015-02-10 15:57             ` Eli Zaretskii
2015-02-10 18:19               ` Daniel Colascione
2015-02-10 18:41                 ` David Kastrup
2015-02-10 19:27                   ` Eli Zaretskii
2015-02-10 19:23                 ` Eli Zaretskii
2015-02-10 20:05                   ` David Kastrup
2015-02-10 23:14                   ` Stefan Monnier
2015-02-11  3:46                     ` Eli Zaretskii [this message]
2015-02-11 23:11                     ` Richard Stallman
2015-02-10 22:48         ` Richard Stallman
2015-02-11  2:08           ` John Yates
2015-02-11 15:42           ` Perry E. Metzger
2015-02-11 16:14             ` Eli Zaretskii
2015-02-11 16:29               ` Perry E. Metzger
2015-02-11 16:44                 ` Eli Zaretskii
2015-02-11 16:54                   ` Eli Zaretskii
2015-02-11 20:50                     ` Perry E. Metzger
2015-02-12  3:37                       ` Eli Zaretskii
2015-02-12  3:54                         ` Perry E. Metzger
2015-02-11 19:14                 ` Florian Weimer
2015-02-11 19:19                 ` Stefan Monnier
2015-02-11 23:13                 ` Richard Stallman
2015-02-12  1:48               ` raman
2015-02-11 23:13             ` Richard Stallman
2015-02-09  7:41   ` Helmut Eller
2015-02-09 19:30   ` Florian Weimer
2015-02-09 22:41     ` Perry E. Metzger
2015-02-10 22:46     ` Richard Stallman
2015-02-09 22:19   ` Perry E. Metzger

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