GNU bug report logs - #57957
29.0.50; Native compilation hangs on cyclic lists

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Package: emacs;

Reported by: Lars Tveito <larstvei <at> ifi.uio.no>

Date: Tue, 20 Sep 2022 14:28:02 UTC

Severity: normal

Tags: confirmed

Merged with 67883, 69872

Found in versions 29.0.50, 29.1.90, 29.2

Done: Andrea Corallo <acorallo <at> gnu.org>

Bug is archived. No further changes may be made.

Full log

Message #25 received at 57957 <at> debbugs.gnu.org (full text, mbox):

From: Andrea Corallo <akrl <at> sdf.org>
To: Gerd Möllmann <gerd.moellmann <at> gmail.com>
Cc: Lars Ingebrigtsen <larsi <at> gnus.org>, Lars Tveito <larstvei <at> ifi.uio.no>,
 57957 <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: Re: bug#57957: 29.0.50; Native compilation hangs on cyclic lists
Date: Thu, 22 Sep 2022 16:07:37 +0000

Gerd Möllmann <gerd.moellmann <at> gmail.com> writes:

> Lars Ingebrigtsen <larsi <at> gnus.org> writes:
>
>> Andrea Corallo <akrl <at> sdf.org> writes:
>>
>>> I see nor cl-nsubst-if nor cl-subst-if are robust against cyclic lists.
>>> Is this a bug in cl-lib or is it expected?  In case I'll add an ad-hoc
>>> substitute for this use (if there's no other alternative).
>>
>> I'm not sure -- Stefan probably knows; added to the CCs.
>
>>From Common Lisp I can say that these functions expect a "tree",
> i.e. not a circular list.

Okay I tried an adhoc substitute but this is not the only place in the
compiler not robust against cyclic lists, so more work will be needed.

  Andrea
This bug report was last modified 1 year and 49 days ago.

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