From: llewelly@xmission.com
To: gcc@gcc.gnu.org
Cc: Dave Korn <dk@artimi.com>
Subject: Re: optimization issue about -O2 and -Os
Date: Fri, 30 Apr 2004 21:02:00 -0000 [thread overview]
Message-ID: <s3rhdv1uwxp.fsf@xmission.xmission.com> (raw)
In-Reply-To: <20040430181516.GB10422@disaster.jaj.com>
Phil Edwards <phil@codesourcery.com> writes:
> On Fri, Apr 30, 2004 at 06:21:26PM +0100, Dave Korn wrote:
> >
> > Hmm, maybe it would be worthwhile to invent -f options for all these
> > ad-hoc tests on the optimize variables, so that the -O options then *did*
> > become shorthand for flag sets, and the suggestion I already made for
> > localising the failure with a given -O setting would actually work?
>
> We need fewer -f options, really, not more of them.
>
> Or to put it another way: if an optimization pass is buggy, it doesn't
> deserve to have an -f option yet.
[snip]
From the standpoint of a user, if an optimization pass is buggy, it
needs an -fno option.
next prev parent reply other threads:[~2004-04-30 18:45 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-29 10:33 Ebony Zhu
2004-04-30 0:37 ` Jim Wilson
2004-04-30 6:39 ` Ebony Zhu
2004-04-30 9:20 ` Jim Wilson
2004-04-30 13:23 ` Ebony Zhu
2004-04-30 16:06 ` Dave Korn
2004-04-30 16:42 ` Zack Weinberg
2004-04-30 18:09 ` Dave Korn
2004-04-30 19:12 ` Zack Weinberg
2004-04-30 19:45 ` Dave Korn
2004-04-30 20:05 ` Phil Edwards
2004-04-30 20:09 ` David Edelsohn
2004-04-30 21:02 ` llewelly [this message]
2004-04-30 18:29 ` Dale Johannesen
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=s3rhdv1uwxp.fsf@xmission.xmission.com \
--to=llewelly@xmission.com \
--cc=dk@artimi.com \
--cc=gcc@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).