From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14180 invoked by alias); 4 Feb 2015 05:21:30 -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 14124 invoked by uid 48); 4 Feb 2015 05:21:25 -0000 From: "aoliva at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/50380] [4.6 only] cc1 hangs eating 100% CPU Date: Wed, 04 Feb 2015 05:21:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 4.6.1 X-Bugzilla-Keywords: compile-time-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: aoliva at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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: 2015-02/txt/msg00296.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50380 Alexandre Oliva changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aoliva at gcc dot gnu.org --- Comment #8 from Alexandre Oliva --- gnewsense devs ran into this problem on gnewsense, building libvpx's vp9_cx_iface for mipsel-linux-gnu. It happens on both gnewsense 3 (gcc 4.4ish) and the upcoming gnewsense 4 (gcc 4.6ish). I tracked it down to this bug, but I noticed the fix in it is incomplete; there was a subsequent fix that complemented this one, that wasn't needed for the testcase at hand, but I thought I'd help anyone else who ran into this problem by adding a note to the subsequent fix as well: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189896