From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30800 invoked by alias); 7 Jan 2014 07:49:19 -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 30763 invoked by uid 55); 7 Jan 2014 07:49:13 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/59643] Predictive commoning unnecessarily punts on scimark2 SOR Date: Tue, 07 Jan 2014 07:49:00 -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: 4.9.0 X-Bugzilla-Keywords: missed-optimization 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: --- 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/msg00600.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59643 --- Comment #2 from Jakub Jelinek --- Author: jakub Date: Tue Jan 7 07:49:10 2014 New Revision: 206384 URL: http://gcc.gnu.org/viewcvs?rev=206384&root=gcc&view=rev Log: PR tree-optimization/59643 * tree-predcom.c (split_data_refs_to_components): If one dr is read and one write, determine_offset fails and the write isn't in the bad component, just put the read into the bad component. * gcc.dg/pr59643.c: New test. * gcc.c-torture/execute/pr59643.c: New test. Added: trunk/gcc/testsuite/gcc.c-torture/execute/pr59643.c trunk/gcc/testsuite/gcc.dg/pr59643.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-predcom.c