From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1458 invoked by alias); 21 Oct 2014 09:39:58 -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 1419 invoked by uid 48); 21 Oct 2014 09:39:54 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/61515] [4.9/5 Regression] Extremely long compile time for generated code Date: Tue, 21 Oct 2014 09:46:00 -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: 5.0 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: P2 X-Bugzilla-Assigned-To: law at redhat dot com X-Bugzilla-Target-Milestone: 4.9.2 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: 2014-10/txt/msg01586.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61515 --- Comment #16 from Richard Biener --- Btw, why is it recording twice a temporary equivalence? Might be simpler even with /* Now invalidate all equivalencies we have to invalidate. */ unsigned i; sbitmap_iterator bi; EXECUTE_IF_SET_IN_BITMAP (to_invalidate, 0, i, bi) record_temporary_equivalence (ssa_name (i), NULL_TREE, stack);