From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26815 invoked by alias); 11 Dec 2012 10:41:06 -0000 Received: (qmail 24859 invoked by uid 48); 11 Dec 2012 10:40:12 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/55645] skipping unlike branch in vectorized loops using movmsk or equivalent Date: Tue, 11 Dec 2012 10:41:00 -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: enhancement X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: CC 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: 2012-12/txt/msg01087.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55645 Jakub Jelinek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #3 from Jakub Jelinek 2012-12-11 10:40:10 UTC --- One problem is how to represent likely vs. unlikely COND_EXPR after ifcvt (plus also teach the vectorizer to create the GIMPLE_COND, and then/else bb's with some vectorized stmts duplicated and some just in one of those bbs.