From: Pip Cet <pipcet@gmail.com>
To: Andrea Corallo <akrl@sdf.org>
Cc: emacs-devel@gnu.org
Subject: Re: feature/native-comp 5bc0855 2/2: Don't treat '=' as simple equality emitting constraints (bug#46812)
Date: Tue, 2 Mar 2021 14:16:24 +0000 [thread overview]
Message-ID: <CAOqdjBfR88Q+ZGyzdnMW5NLYO5e6doc_veYfxaiLOkNd77mqVQ@mail.gmail.com> (raw)
In-Reply-To: <xjfy2f5acrd.fsf@sdf.org>
On Tue, Mar 2, 2021 at 1:47 PM Andrea Corallo <akrl@sdf.org> wrote:
> > It's not working either, as far as I can tell: (lambda (x) (and
> > (floatp x) (= x 0) x)) always returns nil when compiled.
>
> Right, I think a better approach is to relax the inputs before
> intersecting them so intersection is not cutting off already constrained
> inputs.
That should work.
> 8c7228e8cd for now follows this conservative approach and adds
> some testing for the case.
Indeed, and it breaks trying to compile (lambda (x) (unless (= x
1.0e+INF) (error "")) x). (And please don't forget NaNs, they're
numbers too! Except they're not.)
Pip
next prev parent reply other threads:[~2021-03-02 14:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210228230215.15472.12941@vcs0.savannah.gnu.org>
[not found] ` <20210228230217.1971E20E1B@vcs0.savannah.gnu.org>
2021-03-02 5:20 ` feature/native-comp 5bc0855 2/2: Don't treat '=' as simple equality emitting constraints (bug#46812) Pip Cet
2021-03-02 13:47 ` Andrea Corallo via Emacs development discussions.
2021-03-02 14:16 ` Pip Cet [this message]
2021-03-02 14:30 ` Andrea Corallo via Emacs development discussions.
2021-03-02 17:14 ` Pip Cet
2021-03-04 7:36 ` Pip Cet
2021-03-04 7:58 ` Andrea Corallo via Emacs development discussions.
2021-03-06 22:18 ` Andrea Corallo via Emacs development discussions.
2021-03-07 7:03 ` Pip Cet
2021-03-07 7:07 ` Andrea Corallo via Emacs development discussions.
2021-03-07 7:13 ` Pip Cet
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