From: Paul Eggert <eggert@cs.ucla.edu>
To: Bruno Haible <bruno@clisp.org>
Cc: "Mattias Engdegård" <mattiase@acm.org>,
bug-gnulib@gnu.org, emacs-devel <emacs-devel@gnu.org>
Subject: Re: more macOS Clang assume warnings
Date: Tue, 25 Aug 2020 17:44:48 -0700 [thread overview]
Message-ID: <6c0625f1-1c9c-0a0a-b598-fbd79452f6ee@cs.ucla.edu> (raw)
In-Reply-To: <1637416.KCIPBWfl1D@omega>
On 8/25/20 5:01 PM, Bruno Haible wrote:
> It has already been fixed: clang >= 9 optimizes well with just
> __builtin_unreachable and no use of __builtin_assume.
So we're adding all this complexity just for a minor performance tweak for an
old Clang version? Seems overkill.
Even if we keep this stuff, a comment should mention that it's just for Clang 8
(or is it Clang 8 and earlier?).
next prev parent reply other threads:[~2020-08-26 0:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-24 18:54 more macOS Clang assume warnings Mattias Engdegård
2020-08-25 0:23 ` Paul Eggert
2020-08-26 0:01 ` Bruno Haible
2020-08-26 0:44 ` Paul Eggert [this message]
2020-08-27 2:47 ` Richard Stallman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6c0625f1-1c9c-0a0a-b598-fbd79452f6ee@cs.ucla.edu \
--to=eggert@cs.ucla.edu \
--cc=bruno@clisp.org \
--cc=bug-gnulib@gnu.org \
--cc=emacs-devel@gnu.org \
--cc=mattiase@acm.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).