From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20656 invoked by alias); 18 Oct 2002 13:56:03 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 20641 invoked by uid 71); 18 Oct 2002 13:56:03 -0000 Date: Fri, 18 Oct 2002 06:56:00 -0000 Message-ID: <20021018135603.20640.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: Robert Schiele Subject: Re: c/7344: performance regression on huge case statements Reply-To: Robert Schiele X-SW-Source: 2002-10/txt/msg00715.txt.bz2 List-Id: The following reply was made to PR c/7344; it has been noted by GNATS. From: Robert Schiele To: Nathanael Nerode Cc: gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org Subject: Re: c/7344: performance regression on huge case statements Date: Fri, 18 Oct 2002 15:50:39 +0200 --r5Pyd7+fXNt84Ff3 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Oct 18, 2002 at 09:13:39AM -0400, Nathanael Nerode wrote: > So it's down to 28 seconds. That's still technically a regression, but= =20 > it's no longer so horrible. Is this enough to close the report, or=20 > downgrade its priority from high? On which system do you have 28 seconds? How fast were older gcc releases on this system? =46rom my point of view, this is acceptable, as most code fragments do not consist of a switch statement with thousands of cases. It is again now compilable within a realistic time frame, so I think at least the priority can be reduced. I don't know the common policy, so I cannot tell whether the bug should be closed, but I think if someone expects a realistic chance to get this time lower, the bug should not yet been closed to prevent forgetting it. Robert --=20 Robert Schiele Tel.: +49-621-181-2517 Dipl.-Wirtsch.informatiker mailto:rschiele@uni-mannheim.de --r5Pyd7+fXNt84Ff3 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iQEVAwUBPbARr8QAnns5HcHpAQG7wAf9Hln3NhX84iV3GkerE9+jAXCWG6o8vq4i xqOCz3/cjBodAEh+nddoDWL7BpNBPh7kTMIXwSk7X8vWxK4qIjLqGNI4WFpzZuQV 6lMdTAZ1RZY0WB9KRTlu+kzRToL3IPoY4w5D8q5A6qgiRpUOaNbRyH/1U7F5y0ES KruZNyGXWyOaGTIlb/WTmvXINKN377NueGYQ2qaaULqz8bXyapcG+CNsJluS85Ti 3LrwnbvNAckAJje870giynVY/9WP6fjkwLo0Cue5gdgpVbUZTKeALsujYQdr3LCL RbSU27hWrBCMx9tAneHtzBRuxdk8BHFGUcA11yseG/TruOptXEr9Yg== =TovK -----END PGP SIGNATURE----- --r5Pyd7+fXNt84Ff3--