Date: Mon, 25 Jun 2007 19:45:35 +0400 From: Andrey Chernov <ache@nagual.pp.ru> To: Ed Schouten <ed@fxq.nl> Cc: kan@freebsd.org, current@freebsd.org Subject: Re: Silent gcc 4.2.0 loop optimization bug with -O2 Message-ID: <20070625154535.GA54420@nagual.pp.ru> In-Reply-To: <20070625153840.GP27942@hoeg.nl> References: <20070625130913.GA50273@nagual.pp.ru> <20070625133951.GA51324@nagual.pp.ru> <8e5ef5f70706250659v48f64410wb5399985a571087e@mail.gmail.com> <20070625145627.GA53685@nagual.pp.ru> <20070625151508.GO27942@hoeg.nl> <20070625152559.GA54055@nagual.pp.ru> <20070625153840.GP27942@hoeg.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
--WIyZ46R2i8wDzkSu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jun 25, 2007 at 05:38:40PM +0200, Ed Schouten wrote: > * Andrey Chernov <ache@nagual.pp.ru> wrote: > > I am not familiar with gcc bugs reporting system at all. Could somebody= =20 > > running 4.2.1 snapshot tells, is it already fixed, by chance? If no, co= uld=20 > > sumebody fill bug report to them or provide detailed instructions how t= o=20 > > do that, please? >=20 > I couldn't find a similar bug in Bugzilla (though my knowledge of GCC > internals is quite poor), so I opened a new bug: >=20 > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D32500 Thanx! Is it safe to change flags to -O1 per your report? Any objections on the following workaround patch to -current? --- sys.mk.orig 2007-06-25 19:42:40.000000000 +0400 +++ sys.mk 2007-06-25 19:43:01.000000000 +0400 @@ -35,7 +35,7 @@ CFLAGS ?=3D -O .else CC ?=3D cc -CFLAGS ?=3D -O2 -fno-strict-aliasing -pipe +CFLAGS ?=3D -O1 -pipe .endif =20 CXX ?=3D c++ --=20 http://ache.pp.ru/ --WIyZ46R2i8wDzkSu Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFGf+MfVg5YK5ZEdN0RApp4AKCqtNDc4SpkpnJ2AdAoBKfIvhCIXQCfYCGn aiWEE/FcLWNFciP6Kw5PnK8= =2hHT -----END PGP SIGNATURE----- --WIyZ46R2i8wDzkSu--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070625154535.GA54420>