From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3386 invoked by alias); 15 May 2012 12:40:06 -0000 Received: (qmail 3343 invoked by uid 22791); 15 May 2012 12:40:04 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED 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; Tue, 15 May 2012 12:39:51 +0000 From: "dominiq at lps dot ens.fr" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/53346] [4.6/4.7/4.8 Regression] Bad vectorization in the proc cptrf2 of rnflow.f90 Date: Tue, 15 May 2012 12:55:00 -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-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: dominiq at lps dot ens.fr X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.0 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 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: 2012-05/txt/msg01532.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53346 --- Comment #2 from Dominique d'Humieres 2012-05-15 12:39:50 UTC --- > Do you possibly have a testcase? I am not sure to understand what you ask for. The source for cptrf2.f90 has been attached to pr53340. I can provide a version of rnflow without the proc cptrf2 or an archive with the rnflow.f90 source split to one file per proc. If you ask for a reduced test, it is much more difficult: (1) the code is not mine and I don't know it well, (2) optimizations may change for tiny details of the source layout.