From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27796 invoked by alias); 6 Mar 2013 11:12:00 -0000 Received: (qmail 26315 invoked by uid 55); 6 Mar 2013 11:11:29 -0000 From: "rguenther at suse dot de" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/54896] optimization slowness on large basic blocks Date: Wed, 06 Mar 2013 11:12:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Keywords: alias, compile-time-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenther at suse dot de X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2013-03/txt/msg00478.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54896 --- Comment #7 from rguenther at suse dot de 2013-03-06 11:11:28 UTC --- On Wed, 6 Mar 2013, steven at gcc dot gnu.org wrote: > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54896 > > Steven Bosscher changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > Summary|Some optimization slowness |optimization slowness on > |with GCC 4.7.2 |large basic blocks > Known to fail| |4.6.0 > > --- Comment #6 from Steven Bosscher 2013-03-06 11:03:44 UTC --- > (In reply to comment #5) > > Generic compile-time regression umbrella. > > Why? This is not an old regression. It's a regression on all maintained branches.