From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 114093 invoked by alias); 11 Mar 2015 16:37:09 -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 109027 invoked by uid 48); 11 Mar 2015 16:37:05 -0000 From: "meissner at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/65242] [5 Regression] ICE (in gen_add2_insn, at optabs.c:4761) on powerpc64le-linux-gnu Date: Wed, 11 Mar 2015 16:37:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: meissner at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: meissner 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: 2015-03/txt/msg01233.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65242 --- Comment #13 from Michael Meissner --- My gut feeling is we don't want to change ?m to !m, because it might impact floating point conversions <-> integer, where we need the DI mode in a floating point register. In addition, I might worry that it could impact breaking apart _Decimal128 values, which I believe uses DImode for the two parts. I was also trying to make the minimal change, and I didn't want an iteration where we fix up any collateral damage.