From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 68909 invoked by alias); 28 Feb 2015 01:02:20 -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 68834 invoked by uid 48); 28 Feb 2015 01:02:16 -0000 From: "msebor at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug testsuite/63175] [4.9/5 regression] FAIL: gcc.dg/vect/costmodel/ppc/costmodel-bb-slp-9a.c scan-tree-dump-times slp2" basic block vectorized using SLP" 1 Date: Sat, 28 Feb 2015 09:26:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: testsuite X-Bugzilla-Version: 4.9.1 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: msebor at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.3 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: 2015-02/txt/msg03144.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63175 --- Comment #14 from Martin Sebor --- Richard, thank you for the patch. It resolves the regression in the quality of the code generated for the test on ppc64 (I am yet to test other ppc variants). Unfortunately, while working on an improved test for the vectorization I uncovered another regression in this area that manifests itself when the destination address (as opposed to the source address) is not aligned as expected. I posted the enhanced test to the list: http://gcc.gnu.org/ml/gcc-patches/2015-02/msg01736.html