From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21241 invoked by alias); 7 Mar 2013 08:53:39 -0000 Received: (qmail 21057 invoked by uid 55); 7 Mar 2013 08:52:53 -0000 From: "rguenther at suse dot de" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/39326] Segmentation fault with -O1, out of memory with -O2 Date: Thu, 07 Mar 2013 08:53:00 -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: compile-time-hog, memory-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/msg00569.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39326 --- Comment #30 from rguenther at suse dot de 2013-03-07 08:52:52 UTC --- On Thu, 7 Mar 2013, steven at gcc dot gnu.org wrote: > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39326 > > --- Comment #27 from Steven Bosscher 2013-03-07 08:09:59 UTC --- > Compilation finished after ~3 hours and consuming at least 3GB (from top - I > forgot to use memmax2...). > > Winners in the "geez, I'm slow for this test case" list: > > PRE : 6241.75 (57%) usr > tree loop invariant motion : 4194.83 (38%) usr > TOTAL : 11021.46 > > Time is mostly spent in the alias oracle. > > For LIM I'm going to test using triangle instead of square dep/indep > matrix, as a first step. Richi, PRE is yours so... ;-) Actually PRE is yours - it's the RTL PRE ;) Richard.