From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9270 invoked by alias); 8 Apr 2010 17:47:18 -0000 Received: (qmail 9236 invoked by uid 48); 8 Apr 2010 17:47:05 -0000 Date: Thu, 08 Apr 2010 17:47:00 -0000 Message-ID: <20100408174705.9235.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/43423] gcc should vectorize this loop through if-conversion In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "spop at gcc dot gnu dot org" 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: 2010-04/txt/msg00829.txt.bz2 ------- Comment #6 from spop at gcc dot gnu dot org 2010-04-08 17:47 ------- I changed the title of this bug to match the comments in the PR: we should vectorize this loop using if-conversion, and not "iteration range splitting". Also note that in general, by doing an "iteration range splitting" the data locality in the two loops could be worse than in the if-converted loop. -- spop at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|gcc should vectorize this |gcc should vectorize this |loop through "iteration |loop through if-conversion |range splitting" | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43423