From: Luca Benini <lbenini@csr.unibo.it>
To: Dave Korn <dk@artimi.com>
Cc: 'Robert Dewar' <dewar@gnat.com>,
'Gerald Pfeifer' <gerald@pfeifer.com>,
'Beschorner Daniel' <Daniel.Beschorner@facton.com>,
gcc@gcc.gnu.org, gcc-help@gcc.gnu.org
Subject: Re: gcc 3.3 / i386 / -O2 question
Date: Wed, 17 Nov 2004 13:51:00 -0000 [thread overview]
Message-ID: <419B5759.7020603@csr.unibo.it> (raw)
In-Reply-To: <NUTMEGraZfBGagwiIqN0000080a@NUTMEG.CAM.ARTIMI.COM>
Dave Korn wrote:
> If the compiler had to produce the exact same asm at -O0 and -O2, how on earth
> could one be optimised more than the other?
Sorry, but i wasn't clear:
If i compile with a compiler 3.x.y (vanilla) a file i obtain a file.
If i compile with a compiler 3.x.y (suse patch) a file i obtain a file.
in the case that start this thread some compiler version (one vanilla
and other SUSE) generate 2 distinct file as output.
Luca Benini
P.S.
Sorry 4 my english...
Luca
next prev parent reply other threads:[~2004-11-17 13:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-16 15:55 Beschorner Daniel
2004-11-17 1:01 ` Gerald Pfeifer
2004-11-17 10:52 ` Dave Korn
2004-11-17 11:14 ` Luca Benini
2004-11-17 11:33 ` Robert Dewar
2004-11-17 11:41 ` Luca Benini
2004-11-17 11:59 ` Dave Korn
2004-11-17 12:15 ` Dave Korn
2004-11-17 13:01 ` Robert Dewar
2004-11-17 13:51 ` Luca Benini [this message]
2004-11-17 12:45 ` Robert Dewar
2004-11-17 11:37 ` Sriharsha Vedurmudi
2004-11-17 12:17 ` Steven Bosscher
2004-11-17 12:46 ` Joseph S. Myers
2004-11-17 13:08 ` Robert Dewar
2004-11-17 13:06 ` Robert Dewar
2004-11-17 13:39 ` Michael Matz
2004-11-17 13:53 ` Robert Dewar
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