From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 52AF9385783F; Tue, 18 Jul 2023 12:46:04 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 52AF9385783F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1689684364; bh=0HoHgGV+hyfVnLmuczMQmNtkNK1l6nPTWRix01VkTZ4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=m/4mQGeITbAm3DXAHlSWsgVdBfApBpEgBteZrCXuBT239kvOcA3tvnhgGRagWeokj j1EZclNavtu4FvdiwB30sXJB8d91j5VNlW7k2t1soJU6CJiwub2yM282rqmEIHAVvQ tXzQgA/zHSLSICrXrAxj2rWe6lpaoU3OADXAUCsc= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/110714] constexpr lifetime error: base class this pointer Date: Tue, 18 Jul 2023 12:46:04 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: rejects-valid X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: NEW 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: bug_status everconfirmed cf_reconfirmed_on 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110714 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Last reconfirmed| |2023-07-18 --- Comment #1 from Andrew Pinski --- Note this works on the trunk: ``` struct Base { constexpr virtual ~Base() {} // constexpr Base* get_this() { return this; } int x; }; struct Derived : public Base {}; constexpr bool test() { Derived* pf =3D new Derived; Base* t =3D pf; delete t; return true; } constexpr bool b =3D test(); ```=