From: Mark H Weaver <mhw@netris.org>
To: Stefan Israelsson Tampe <stefan.itampe@gmail.com>
Cc: 21883@debbugs.gnu.org, Zefram <zefram@fysh.org>
Subject: bug#21883: unnecessary bit shifting range limits
Date: Sun, 14 Oct 2018 18:19:36 -0400 [thread overview]
Message-ID: <87a7ngtblz.fsf@netris.org> (raw)
In-Reply-To: <CAGua6m1gnynxOxWsTEjf=EAMirWVp+bOP2aTsiLs=d1Z0UmdLw@mail.gmail.com> (Stefan Israelsson Tampe's message of "Sun, 14 Oct 2018 11:46:12 +0200")
Stefan Israelsson Tampe <stefan.itampe@gmail.com> writes:
> how would this slow down the code. just add the correction where you
> throw the exception which should be in a branch outside the hot path.
If you have a suggestion that's simpler than what I did in commits
011aec7e, 9448a078, and 1990aa91, and just as fast in the common cases,
feel free to propose a patch. The words above are insufficient.
Mark
next prev parent reply other threads:[~2018-10-14 22:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-12 7:07 bug#21883: unnecessary bit shifting range limits Zefram
2018-10-14 8:18 ` Mark H Weaver
[not found] ` <CAGua6m1D3Ed-T3GJntfZr5QesTvR_Gf1-JbsiAetdoxBGkce_w@mail.gmail.com>
[not found] ` <CAGua6m1CrfW2jEmQcDn_-1szGQbNcboBa45M6inEE5As6FToXw@mail.gmail.com>
2018-10-14 9:46 ` Stefan Israelsson Tampe
2018-10-14 22:19 ` Mark H Weaver [this message]
2018-10-15 7:08 ` Stefan Israelsson Tampe
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