bug#57957: 29.0.50; Native compilation hangs on cyclic lists

[Andrea Corallo]

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

> Lars Ingebrigtsen <larsi@gnus.org> writes:
>
>> Andrea Corallo <akrl@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