From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: emacs-pretest-bug@gnu.org
Subject: Re: [22.1.90]: Point before start of properties
Date: Fri, 22 Feb 2008 18:31:28 +0200 [thread overview]
Message-ID: <uzltths0w.fsf@gnu.org> (raw)
In-Reply-To: <jwvwsoy5mgn.fsf-monnier+emacs@gnu.org> (message from Stefan Monnier on Thu, 21 Feb 2008 11:02:25 -0500)
> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: Eli Zaretskii <eliz@gnu.org>, emacs-pretest-bug@gnu.org,
> Simon.Marshall@misys.com, cyd@stupidchicken.com
> Date: Thu, 21 Feb 2008 11:02:25 -0500
>
> Debugging optimized code is an open research problem, fundamentally
> very difficult. Basically, it's an unsolvable problem,
> i.e. a wrong question.
It can be solved almost trivially, IMO, by providing a special -Ox
switch which would turn off every optimization whose results cannot be
expressed reliably using the modern debug info formats. The gain from
these optimizations is marginal anyway, on the order of several
percents, and many developers will gladly buy that if they gain
debuggability instead.
next prev parent reply other threads:[~2008-02-22 16:31 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-08 16:35 [22.1.90]: Point before start of properties Marshall, Simon
2008-02-10 3:26 ` Stefan Monnier
2008-02-10 15:22 ` Chong Yidong
2008-02-12 17:52 ` Marshall, Simon
2008-02-12 18:32 ` Stefan Monnier
2008-02-13 10:13 ` Marshall, Simon
2008-02-18 19:52 ` Stefan Monnier
2008-02-19 10:37 ` Marshall, Simon
2008-02-19 16:00 ` Stefan Monnier
2008-02-19 17:23 ` Marshall, Simon
2008-02-19 17:31 ` David Kastrup
2008-02-20 9:44 ` Marshall, Simon
2008-02-19 21:59 ` Stefan Monnier
2008-02-20 11:31 ` Marshall, Simon
2008-02-20 17:17 ` Stefan Monnier
2008-02-20 19:40 ` Eli Zaretskii
2008-02-21 9:16 ` Richard Stallman
2008-02-21 16:02 ` Stefan Monnier
2008-02-22 3:16 ` Stephen J. Turnbull
2008-02-22 15:18 ` [OT] Deugging optimized code (was: [22.1.90]: Point before start of properties) Stefan Monnier
2008-02-22 15:41 ` Andreas Schwab
2008-02-22 22:20 ` Stephen J. Turnbull
2008-02-22 16:31 ` Eli Zaretskii [this message]
2008-02-22 16:27 ` [22.1.90]: Point before start of properties Eli Zaretskii
2008-02-22 22:09 ` Miles Bader
2008-02-23 19:29 ` Richard Stallman
2008-02-23 21:18 ` Eli Zaretskii
2008-02-24 15:22 ` Richard Stallman
2008-02-24 19:59 ` Eli Zaretskii
2008-02-25 10:57 ` Richard Stallman
2008-02-25 15:55 ` Stefan Monnier
2008-02-24 20:36 ` Tom Tromey
2008-02-25 10:57 ` Richard Stallman
2008-02-21 22:27 ` Richard Stallman
[not found] ` <6EE216E1AA959543A555C60FF34FB76702B2DB02@maileube01.misys.global.ad>
2008-02-19 14:45 ` Marshall, Simon
2008-02-19 23:09 ` Richard Stallman
2008-02-10 18:42 ` Richard Stallman
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