From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 24123 invoked by alias); 18 Dec 2012 11:01:51 -0000 Received: (qmail 24037 invoked by uid 48); 18 Dec 2012 11:01:25 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/54114] [4.8 Regression] variable-tracking performance regression from 4.8-20120610 to 4.8-20120701 Date: Tue, 18 Dec 2012 11:01:00 -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: X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.0 X-Bugzilla-Changed-Fields: Status CC Resolution 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: 2012-12/txt/msg01720.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54114 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |jakub at gcc dot gnu.org Resolution| |WONTFIX --- Comment #6 from Jakub Jelinek 2012-12-18 11:01:24 UTC --- variable tracking : 0.08 ( 1%) usr 0.01 ( 3%) sys 0.11 ( 1%) wall 3165 kB ( 3%) ggc var-tracking dataflow : 0.36 ( 4%) usr 0.00 ( 0%) sys 0.38 ( 4%) wall 226 kB ( 0%) ggc var-tracking emit : 0.31 ( 3%) usr 0.00 ( 0%) sys 0.36 ( 4%) wall 2186 kB ( 2%) ggc for me, I'd call this insignificant, given that it was really a debug info correctness fix. We have PR54402 which tracks cases where the slowdown is actually significant.