From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7853 invoked by alias); 12 Nov 2009 07:51:47 -0000 Received: (qmail 7800 invoked by uid 48); 12 Nov 2009 07:51:33 -0000 Date: Thu, 12 Nov 2009 07:51:00 -0000 Message-ID: <20091112075133.7799.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/41879] [4.5 Regression] 172.mgrid regression, vectorizer prevents predictive commoning In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "irar at il dot ibm dot com" 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: 2009-11/txt/msg00977.txt.bz2 ------- Comment #5 from irar at il dot ibm dot com 2009-11-12 07:51 ------- (In reply to comment #4) > I didn't check yet. We'll work on a simple cost-model integration of > predcom. You mean, vectorizer cost model will take predcom into account? If the vectorization is not profitable (vs. scalar without predcom), it can be a matter of vectorizer cost model tuning (looks easier). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41879