From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Pip Cet <pipcet@gmail.com>
Cc: Paul Eggert <eggert@cs.ucla.edu>,
emacs-diffs@gnu.org, emacs-devel@gnu.org
Subject: Re: master 9227864: Further fix for aborts due to GC losing pseudovectors
Date: Tue, 26 May 2020 13:46:22 -0400 [thread overview]
Message-ID: <jwvpnaq382d.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <CAOqdjBcvBH0Fyr4HbOAtG-ELzNQrBstCJYd8bixJXDZeRODThw@mail.gmail.com> (Pip Cet's message of "Tue, 26 May 2020 17:25:38 +0000")
> I guess the recent bugs also make it impossible to do a 32-bit
> --wide-int USE_LSB_TAG build.
Indeed.
> My suspicion is that that would actually be faster,
We had USE_LSB_TAGS for wide-int, originally, but experiments showed
that for wide-int MSB_TAGs was slightly faster, presumably because the
tagging/untagging is simpler. Speed was (so far) the only reason why we
didn't use LSB_TAGs for wide-int.
Stefan
prev parent reply other threads:[~2020-05-26 17:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200526060645.22243.34109@vcs0.savannah.gnu.org>
[not found] ` <20200526060646.662E120A2C@vcs0.savannah.gnu.org>
2020-05-26 6:40 ` master 9227864: Further fix for aborts due to GC losing pseudovectors Pip Cet
2020-05-26 7:09 ` Paul Eggert
2020-05-26 7:25 ` Pip Cet
2020-05-26 7:40 ` Paul Eggert
2020-05-26 8:02 ` Pip Cet
2020-05-26 14:51 ` Stefan Monnier
2020-05-26 17:25 ` Pip Cet
2020-05-26 17:46 ` Stefan Monnier [this message]
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