Date: Tue, 9 Mar 1999 23:07:23 +0100
To: pgcc AT delorie DOT com
Subject: Re: gcc-2.7.0 creates faster code than pgcc-1.1.1
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In-Reply-To: <Pine.LNX.4.04.9903091114280.8347-100000@alcatraz.fdf.net>; from Dustin Marquess on Tue, Mar 09, 1999 at 11:14:58AM -0600
X-Operating-System: Linux version 2.2.2 (marc AT cerebro) (gcc driver version pgcc-2.93.04 19990131 (gcc2 ss-980929 experimental) executing gcc version 2.7.2.3) 
From: Marc Lehmann <pcg AT goof DOT com>
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On Tue, Mar 09, 1999 at 11:14:58AM -0600, Dustin Marquess wrote:
> On Wed, 3 Mar 1999, Paul Derbyshire wrote:
> 
> > At 12:09 PM 3/2/99 -0600, you wrote:
> > >Could you try the following options:
> > >
> > >-O20
> > 
> > Is this a joke, or has PGCC come a LOOONG way since I last checked up on it?
> 
> 	glibc2 uses -O99 :).... I think after like -O6 or -O7 it
> really doesn't change anything...

-O3 is the highest for gcc & egcs,
-O6 is the highest for pgcc

Most other compilers (if they support the -Onnn syntax) go upto -O2 or -O3
at most.

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