public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "pacho at condmat1 dot ciencias.uniovi.es" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/45483] gcc-4.4.3 and 4.5.3: probably wrong optimization options chosen by "-march=native"
Date: Thu, 22 Sep 2011 23:05:00 -0000 [thread overview]
Message-ID: <bug-45483-4-y4neY28bWg@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-45483-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45483
--- Comment #11 from Pacho Ramos <pacho at condmat1 dot ciencias.uniovi.es> 2011-09-22 22:39:58 UTC ---
If I use "mtune=native" instead of "march", final gcc command is different:
/usr/libexec/gcc/i686-pc-linux-gnu/4.6.1/cc1 -quiet - -D_FORTIFY_SOURCE=2
--param l1-cache-size=32 --param l1-cache-line-size=64 --param
l2-cache-size=2048 -mtune=generic -quiet -dumpbase - -march=i686 -auxbase-strip
/dev/null -o /tmp/ccs2Uhin.s
Not sure if that is normal
next prev parent reply other threads:[~2011-09-22 22:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-45483-4@http.gcc.gnu.org/bugzilla/>
2011-09-22 20:49 ` [Bug target/45483] gcc-4.4.3: " pacho at condmat1 dot ciencias.uniovi.es
2011-09-22 21:39 ` [Bug target/45483] gcc-4.4.3 and 4.5.3: " hjl.tools at gmail dot com
2011-09-22 22:36 ` pacho at condmat1 dot ciencias.uniovi.es
2011-09-22 23:05 ` pacho at condmat1 dot ciencias.uniovi.es [this message]
2011-09-24 15:54 ` hjl.tools at gmail dot com
2011-09-24 16:03 ` pacho at condmat1 dot ciencias.uniovi.es
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-45483-4-y4neY28bWg@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).