From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11494 invoked by alias); 31 Jan 2014 11:41:27 -0000 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 Received: (qmail 11306 invoked by uid 48); 31 Jan 2014 11:41:23 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/59811] [4.8/4.9 Regression] Huge increase in memory usage and compile time in combine Date: Fri, 31 Jan 2014 11:41:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 4.8.2 X-Bugzilla-Keywords: compile-time-hog, memory-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-01/txt/msg03307.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59811 --- Comment #6 from Jakub Jelinek --- Dunno what to limit there though. BTW, the 1000 default for sccvn-max-alias-queries-per-access param was some carefully chosen value, e.g. does the test that was fixed by the addition of the param fail if it is bumped to say 1500 or 2000, or can we just bump slightly the default?