From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19370 invoked by alias); 11 Aug 2013 11:17:29 -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 19347 invoked by uid 48); 11 Aug 2013 11:17:27 -0000 From: "olegendo at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/58122] loops are not evaluated at compile time if loop count > 17 Date: Sun, 11 Aug 2013 11:17:00 -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: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: olegendo at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED 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: 2013-08/txt/msg00593.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58122 --- Comment #1 from Oleg Endo --- (In reply to Oleg Endo from comment #0) > > I've checked this with an SH cross compiler setup, but I don't think it > matters. > The loops do get eliminated if the number of loop iterations is max. 17, for > both the reduced example and the originally reported case. Forgot to mention: The loops get eliminated when compiling with -O3