From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28686 invoked by alias); 17 Jun 2014 11:23:53 -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 28520 invoked by uid 48); 17 Jun 2014 11:23:20 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/61515] [4.10 Regression] Extremely long compile time for generated code Date: Tue, 17 Jun 2014 11:23:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 4.10.0 X-Bugzilla-Keywords: compile-time-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.10.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.created 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: 2014-06/txt/msg01456.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61515 --- Comment #9 from Richard Biener --- Created attachment 32952 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32952&action=edit stripped down testcase Stripped down, now it starts to fall off a bit: tree SSA incremental : 1.48 ( 7%) usr 0.42 (33%) sys 1.96 ( 8%) wall 1882 kB ( 1%) ggc dominator optimization : 10.57 (50%) usr 0.03 ( 2%) sys 12.44 (48%) wall 6918 kB ( 4%) ggc TOTAL : 21.12 1.27 25.67 191269 kB (just cutting in half three times from the bottom and appending } until it compiles again)