Date: Wed, 7 Mar 2001 01:46:07 -0800 From: Kris Kennaway <kris@obsecurity.org> To: Jordan Hubbard <jkh@osd.bsdi.com> Cc: kris@obsecurity.org, jkh@FreeBSD.org, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: -march considered harmful? (Re: cvs commit: src/etc/defaults make.conf) Message-ID: <20010307014607.A34025@mollari.cthul.hu> In-Reply-To: <20010307013756K.jkh@osd.bsdi.com>; from jkh@osd.bsdi.com on Wed, Mar 07, 2001 at 01:37:56AM -0800 References: <200103070839.f278dVK30071@freefall.freebsd.org> <20010307005610.A54109@mollari.cthul.hu> <20010307013756K.jkh@osd.bsdi.com>
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--qMm9M+Fa2AknHoGS Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 07, 2001 at 01:37:56AM -0800, Jordan Hubbard wrote: > From: Kris Kennaway <kris@obsecurity.org> > Subject: Re: cvs commit: src/etc/defaults make.conf > Date: Wed, 7 Mar 2001 00:56:10 -0800 >=20 > > Uhh..evidence, please? >=20 > Largely apocryphal, I'll admit, but I've heard enough rumblings from > enough places about mysterious breakages that a warning appeared > merited. People like you who remain strongly convinced that there are > no issues with gcc's architecture-specific optimization can ignore > that comment and just go ahead and set it since it's not aimed at you > anyway. :) Since you don't have any real evidence I think this warning is misguided and should be removed since there's no demonstrable risk associated with using it, but significant performance benefit. Compare that to the -O2 case, where it is easy to demonstrate code which fails under it. You are scaring people for no demonstrable reason. Kris --qMm9M+Fa2AknHoGS Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE6pgNfWry0BWjoQKURArjzAKCfdHUV8G5dKg/jNJO99YR+QVs8hACgz5kG rbcOHOdNyBFg5q+mfX+I380= =3Ren -----END PGP SIGNATURE----- --qMm9M+Fa2AknHoGS-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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