From: Philipp Stephani <p.stephani2@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>, Mark Oteiza <mvoteiza@udel.edu>
Cc: emacs-devel@gnu.org
Subject: Re: pure-fns in byte-opt.el
Date: Sun, 24 Sep 2017 07:34:27 +0000 [thread overview]
Message-ID: <CAArVCkSZ=KqRC_CJXB6wi2KYdv3Miz0Qu4svzTgivV0t=72E=A@mail.gmail.com> (raw)
In-Reply-To: <83a83n2m7r.fsf@gnu.org>
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Eli Zaretskii <eliz@gnu.org> schrieb am Sa., 29. Juli 2017 um 19:22 Uhr:
> > Date: Sat, 29 Jul 2017 12:34:46 -0400
> > From: Mark Oteiza <mvoteiza@udel.edu>
> > Cc: emacs-devel@gnu.org
> >
> > >So I think the problem happens in unidata-word-list-compress, and it
> > >happens because make-vector, which that function calls always returns
> > >the same vector, so the vectors used by that function and created by
> > >it are all messed up.
> >
> > I don't follow: why does it always return the same vector?
>
> That's how I understand what the byte compiler does when you declare
> that function "pure".
>
That sounds like a bug. Optimization shouldn't change semantics. Either we
need to change the definition of "pure" to something far more restrictive,
or we should fix the optimizer.
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next prev parent reply other threads:[~2017-09-24 7:34 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-25 2:06 pure-fns in byte-opt.el Mark Oteiza
2017-07-25 8:14 ` Andreas Schwab
2017-07-25 14:16 ` Stefan Monnier
2017-07-25 20:57 ` Philipp Stephani
2017-07-25 21:27 ` Stefan Monnier
2017-07-25 22:28 ` Clément Pit-Claudel
2017-07-26 0:08 ` Stefan Monnier
2017-07-26 7:39 ` Clément Pit-Claudel
2017-07-26 12:58 ` Stefan Monnier
2017-07-28 17:45 ` Philipp Stephani
2017-07-28 17:49 ` Stefan Monnier
2017-07-28 17:52 ` Philipp Stephani
2017-07-28 22:20 ` Stefan Monnier
2017-09-24 7:31 ` Philipp Stephani
2017-09-24 16:23 ` Stefan Monnier
2017-09-25 22:06 ` Richard Stallman
2017-09-26 0:25 ` Stefan Monnier
2020-07-25 19:53 ` Philipp Stephani
2020-07-25 19:58 ` Stefan Monnier
2020-07-25 20:08 ` Philipp Stephani
2020-07-25 20:59 ` Stefan Monnier
2020-07-29 14:21 ` Philipp Stephani
2020-07-29 14:25 ` Stefan Monnier
2017-09-24 16:26 ` Drew Adams
2017-07-26 1:00 ` Mark Oteiza
2017-07-26 14:33 ` Eli Zaretskii
2017-07-27 2:36 ` Mark Oteiza
2017-07-27 2:46 ` Stefan Monnier
2017-07-29 16:43 ` Mark Oteiza
2017-07-29 17:22 ` Eli Zaretskii
2017-07-29 19:48 ` Mark Oteiza
2017-07-29 20:03 ` Andreas Schwab
2017-07-29 20:14 ` Mark Oteiza
2017-07-27 17:06 ` Eli Zaretskii
2017-07-28 0:24 ` Mark Oteiza
2017-07-28 7:02 ` Eli Zaretskii
2017-07-29 1:24 ` Mark Oteiza
2017-07-29 7:24 ` Eli Zaretskii
2017-07-29 16:34 ` Mark Oteiza
2017-07-29 17:21 ` Eli Zaretskii
2017-09-24 7:34 ` Philipp Stephani [this message]
2017-09-24 16:24 ` Stefan Monnier
2017-09-24 23:22 ` John Wiegley
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