From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28891 invoked by alias); 13 Jul 2015 21:34:25 -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 28673 invoked by uid 48); 13 Jul 2015 21:34:21 -0000 From: "law at redhat dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/66726] missed optimization, factor conversion out of COND_EXPR Date: Mon, 13 Jul 2015 21:34:00 -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-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: law at redhat dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- 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: 2015-07/txt/msg01070.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66726 --- Comment #10 from Jeffrey A. Law --- Sinking the cast changes the form of the range tests into one that tree-ssa-reassoc isn't prepared to handle. Sadly the form presented with the cast sunk is *simpler* than the original. I'm testing a bit of a hack to avoid the sinking of the cast in cases where doing so is less likely to be a win.