From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id BF7D53858421; Thu, 18 Nov 2021 12:52:49 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BF7D53858421 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/103314] [12 regression] ICE on valid code at -O1 and above on x86_64-linux-gnu: Segmentation fault since r12-5358 Date: Thu, 18 Nov 2021 12:52:49 +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: unknown X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: pinskia at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.0 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-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Nov 2021 12:52:49 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103314 --- Comment #4 from Jakub Jelinek --- I bet the TYPE_PRECISION (TREE_TYPE (@0)) =3D=3D TYPE_PRECISION (type) case should only be allowed if @1 !=3D @3, i.e. when the bitop initially ha= s 2 conversions and turns it into just one, otherwise it will ping-pong endless= ly.=