From mboxrd@z Thu Jan  1 00:00:00 1970
From: jfm2@club-internet.fr
To: jbuck@racerx.synopsys.com
Cc: jfm2@club-internet.fr, gcc@gcc.gnu.org
Subject: Re: Is there a site for unofficail patches?
Date: Wed, 23 Aug 2000 13:14:00 -0000
Message-id: <20000823202215.B6BC6F427@agnes.fremen.dune>
References: <200008231501.IAA13838@racerx.synopsys.com>
X-SW-Source: 2000-08/msg00482.html

> 
> > I have found that gcc 2.95.2 tends to coredump in Linux (RedHat 6.2)
> > when compiling with -O3 -mcpu=i686 -mpreferred-stack-boundary=2
> > 
> > The most notorious example is that it fails to recompile itself.  The
> > culprit is the preferred-stack-boundary flag since after removing it
> > then everything works fine.  Is there a place where I could look for a
> > patch?
> 
> The problem with unusual flag combinations and high optimization levels
> is that you're in untested territory.  It may well be that no one besides
> you ever tried this combination before, so it is very unlikely that you'll
> find a patch anywhere.
> 
> 
> 

In fact I was using a subset of Linux Mandrake's flags with the only
difference that Mandrake uses -march=i586 while I use -mcpu=i686.

But using plain -03 -mcpu=i686 -mpreferred-stack-boundary crashed gcc
while rebuilding itself.

-- 
			Jean Francois Martinez

Project Independence: Linux for the Masses
http://www.independence.seul.org