From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>, Stefan Monnier <monnier@iro.umontreal.ca>
Cc: schwab@suse.de, dmantipov@yandex.ru, emacs-devel@gnu.org
Subject: Re: Warnings/errors related to possibly clobbered variables
Date: Tue, 13 Jan 2015 13:31:55 -0800 [thread overview]
Message-ID: <54B58ECB.7010403@cs.ucla.edu> (raw)
In-Reply-To: <83egqy4f36.fsf@gnu.org>
On 01/13/2015 12:10 PM, Eli Zaretskii wrote:
> The compiler is rarely wrong in these cases
But it does appear to be wrong in this case. That's why I filed a
compiler bug, and the GCC maintainers seem to agree that it's a bug.
Long ago when I ran into this set of GCC bugs, I shrugged and added
'volatile's to pacify the buggy GCCs. Stefan removed some of them as
part of some of his other fixes, but I suspect that a few 'volatile's
are not necessary even today (except perhaps to pacify the GCC bug).
I say "set of GCC bugs" because I suspect there are more than one, some
of which have been fixed, and some of which remain.
prev parent reply other threads:[~2015-01-13 21:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-13 11:32 Warnings/errors related to possibly clobbered variables Dmitry Antipov
2015-01-13 11:51 ` Andreas Schwab
2015-01-13 12:12 ` Dmitry Antipov
2015-01-13 16:21 ` Eli Zaretskii
2015-01-13 17:07 ` Paul Eggert
2015-01-13 19:43 ` Stefan Monnier
2015-01-13 20:10 ` Eli Zaretskii
2015-01-13 20:55 ` Stefan Monnier
2015-01-13 21:31 ` Paul Eggert [this message]
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