public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "josh.m.conner at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/55213] vectorizer ignores __restrict__
Date: Thu, 29 Nov 2012 22:18:00 -0000	[thread overview]
Message-ID: <bug-55213-4-nay2XXmnDP@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-55213-4@http.gcc.gnu.org/bugzilla/>


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55213

--- Comment #4 from Joshua Conner <josh.m.conner at gmail dot com> 2012-11-29 22:17:50 UTC ---
I'm also seeing this same issue in libgfortran's matmul_r8.c, where the inner
loop has an aliasing check even though all of the pointer dereferences are via
restricted pointers.  Again, the problem is worse because the aliasing
versioning prevents us from doing vector alignment peeling.


  parent reply	other threads:[~2012-11-29 22:18 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-05 11:51 [Bug tree-optimization/55213] New: " vincenzo.innocente at cern dot ch
2012-11-05 12:11 ` [Bug tree-optimization/55213] " jakub at gcc dot gnu.org
2012-11-05 13:29 ` vincenzo.innocente at cern dot ch
2012-11-20 18:06 ` josh.m.conner at gmail dot com
2012-11-29 22:18 ` josh.m.conner at gmail dot com [this message]
2012-11-30  7:45 ` Joost.VandeVondele at mat dot ethz.ch

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

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-55213-4-nay2XXmnDP@http.gcc.gnu.org/bugzilla/ \
    --to=gcc-bugzilla@gcc.gnu.org \
    --cc=gcc-bugs@gcc.gnu.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.
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).