From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29710 invoked by alias); 27 Jul 2015 16:43:26 -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 29573 invoked by uid 48); 27 Jul 2015 16:43:13 -0000 From: "ktkachov at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug bootstrap/67030] [6 Regression] ARM bootstrap failure due to [-Werror=tautological-compare] Date: Mon, 27 Jul 2015 16:43:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: bootstrap X-Bugzilla-Version: 6.0 X-Bugzilla-Keywords: build X-Bugzilla-Severity: normal X-Bugzilla-Who: ktkachov at gcc dot gnu.org 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/msg02360.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67030 --- Comment #3 from ktkachov at gcc dot gnu.org --- (In reply to ktkachov from comment #2) > (In reply to Marek Polacek from comment #1) > > Could you please try whether this patch helps? > > > > Trying it out now... Unfortunately still getting the error. One thing I missed out from the original error message is this note: error: self-comparison always evaluates to false [-Werror=tautological-compare] #define SUPPORTS_STACK_ALIGNMENT (MAX_STACK_ALIGNMENT > STACK_BOUNDARY) $SRC/gcc/cfgexpand.c:1268:7: note: in expansion of macro 'SUPPORTS_STACK_ALIGNMENT' if (SUPPORTS_STACK_ALIGNMENT ^ Don't know if that helps.