From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30284 invoked by alias); 8 Jun 2011 13:39:09 -0000 Received: (qmail 30272 invoked by uid 22791); 8 Jun 2011 13:39:08 -0000 X-SWARE-Spam-Status: No, hits=-2.7 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 08 Jun 2011 13:38:53 +0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/49310] [4.7 Regression] Compile time hog in var-tracking emit 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: X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.0 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 Date: Wed, 08 Jun 2011 13:39:00 -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 X-SW-Source: 2011-06/txt/msg00636.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49310 --- Comment #6 from Jakub Jelinek 2011-06-08 13:38:51 UTC --- Or alternatively make it more dynamic, like if in one function the maximum level is reached or almost reached (so it could be checked only in vt_expand_loc_callback) more than some parameter times (like several millions or so), it would temporarily drop down the limit to a lower value. It would probably need to recheck all var locations at that spot though, because dummy and real expansion should match.