GNU bug report logs - #6031
gcc 4.5 breaks optimized builds of emacs

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Package: notemacs;

Reported by: Elias Pipping <pipping.elias <at> googlemail.com>

Date: Sat, 24 Apr 2010 23:48:02 UTC

Severity: normal

Merged with 6039

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

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Message #35 received at 6031 <at> debbugs.gnu.org (full text, mbox):

From: Dan Nicolaescu <dann <at> gnu.org>
To: Ulrich Mueller <ulm <at> gentoo.org>
Cc: 6031 <at> debbugs.gnu.org
Subject: Re: bug#6031: Emacs 23.1 breaks with gcc 4.5 and
	-foptimize-sibling-calls
Date: Mon, 26 Apr 2010 17:09:27 -0400

Ulrich Mueller <ulm <at> gentoo.org> writes:

> I just want to point out that we observe a very similar issue in
> <http://bugs.gentoo.org/317187>, for the 23.1 release.

Could you please try to find out where exactly the problem is?

You can do a binary search on the object files compiled with the
options that result in a working binary by linking them with the ones
that result in a non-working binary.
Maybe you can find a single file that gets miscompiled, and then 
find out what function in that file gets miscompiled.
This bug report was last modified 15 years and 58 days ago.

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