GNU bug report logs - #76559
31.0.50; [-O3 + PGTK] Crash when 'copying as kill'/'killing word'

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Message #146 received at 76559 <at> debbugs.gnu.org (full text, mbox):

From: Po Lu <luangruo <at> yahoo.com>
To: Pip Cet <pipcet <at> protonmail.com>
Cc: Paul Eggert <eggert <at> cs.ucla.edu>, iura.mail <at> gmail.com,
 Stefan Kangas <stefankangas <at> gmail.com>, michael.albinus <at> gmx.de,
 Eli Zaretskii <eliz <at> gnu.org>, 76559 <at> debbugs.gnu.org, marian.iurie <at> gmail.com
Subject: Re: bug#76559: 31.0.50; [-O3 + PGTK] Crash when 'copying as
 kill'/'killing word'
Date: Sun, 02 Mar 2025 19:29:13 +0800

Pip Cet <pipcet <at> protonmail.com> writes:

> Are you going to report the GCC bug?  If not, I'd like to do so, with
> your permission.

By all means (and please don't even consider requesting my permission to
do so--Free Software means it is every person's birthright to take the
initiative into his own hands).

> Working around the problem may be more difficult, and it might be
> easiest to disable the SRA pass for bad GCC versions, but maybe
> something will occur to the GCC folks.

I had a very conservative workaround that disqualifies all accesses
where more than two incompatible aggregate types (all aggregates are
impacted, not just unions & records) are concerned are rejected, but
maybe it's too timid for their tastes or I omitted to post it in this
thread.  In the meantime, let's apply `-fno-tree-sra' on GCC.

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