From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19555 invoked by alias); 16 Dec 2014 20:46:12 -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 19504 invoked by uid 48); 16 Dec 2014 20:46:09 -0000 From: "janus at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/64244] [4.8/4.9/5 Regression] ICE at class.c:236 when using non_overridable Date: Tue, 16 Dec 2014 20:46:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 4.9.2 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: janus at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: janus 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: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-12/txt/msg01938.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D64244 --- Comment #12 from janus at gcc dot gnu.org --- (In reply to Ond=C5=99ej =C4=8Cert=C3=ADk from comment #11) > So my system (RHEL6) libstdc++ library might be incompatible with the > trunk, but I don't see why gcc couldn't compile. Any ideas how to fix > this? Unfortunately I have no idea. It might possibly help to use --disable-boots= trap or --disable-multilib when configuring (just guessing here). In general, if you have trouble building GCC, you might get help from gcc-help@gcc.gnu.org (or, for Fortran-related things: fortran@gcc.gnu.org). Note that some people offer nightly builds of the GCC trunk, see https://gcc.gnu.org/wiki/GFortranBinaries. >>From gcc-bugs-return-470932-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Dec 16 20:58:19 2014 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 8769 invoked by alias); 16 Dec 2014 20:58:18 -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 Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 8684 invoked by uid 48); 16 Dec 2014 20:58:09 -0000 From: "mpolacek at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/63568] Missed optimization (a & ~mask) | (b & mask) = a ^ ((a ^ b) & mask) Date: Tue, 16 Dec 2014 20:58:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: mpolacek at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: mpolacek at gcc dot gnu.org X-Bugzilla-Target-Milestone: 5.0 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: 2014-12/txt/msg01939.txt.bz2 Content-length: 380 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63568 --- Comment #8 from Marek Polacek --- (In reply to Oleg Endo from comment #7) > If you decide not to do the transform at the tree level, please change this > to a target PR and assign it to me. I have a patch that does the transformation on match-and-simplify. Let's see if it can make it in...