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From: Phil Edwards <phil@codesourcery.com>
To: Dave Korn <dk@artimi.com>
Cc: gcc@gcc.gnu.org
Subject: Re: optimization issue about -O2 and -Os
Date: Fri, 30 Apr 2004 20:05:00 -0000	[thread overview]
Message-ID: <20040430181516.GB10422@disaster.jaj.com> (raw)
In-Reply-To: <NUTMEGNN79xavjrRZ1U00000115@NUTMEG.CAM.ARTIMI.COM>

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.


-- 
Behind everything some further thing is found, forever; thus the tree behind
the bird, stone beneath soil, the sun behind Urth.  Behind our efforts, let
there be found our efforts.
              - Ascian saying, as related by Loyal to the Group of Seventeen

  reply	other threads:[~2004-04-30 18:15 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 [this message]
2004-04-30 20:09                   ` David Edelsohn
2004-04-30 21:02                   ` llewelly
2004-04-30 18:29       ` Dale Johannesen

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