From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id E12F43858D32; Fri, 12 Jan 2024 10:53:56 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E12F43858D32
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1705056836;
	bh=EgcFl8jIyEXLmtu8lEGyn2Byr/cs7MBgB3wAyhmij8k=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=QB/tCj+zCKE0vtMJmqjFBF/8gKb2IXjB4RobzSTnzgi2ftHXXNgofHu2jMgCubMcJ
	 DyQ4gkS7ZdgdnmHsbZWkGUR/SJdqQdyo2S2g0uUh3mlhcETksZ9qDsEm1scmK2hYOk
	 nUgnBpPdZOyq+NXQCF1K4x8ay2AdILRgW+wPZzs8=
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/109770] [11/12/13/14 Regression] wrong(?) devirtualization
Date: Fri, 12 Jan 2024 10:53:54 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: ipa
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: INVALID
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.5
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_status resolution
Message-ID: <bug-109770-4-na8pednhzg@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109770-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109770-4@http.gcc.gnu.org/bugzilla/>
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: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109770

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #9)
> (In reply to Richard Biener from comment #0)
> >   Base *p =3D new B;
>=20
> I think if there isn't really a B at this address, then the derived-to-ba=
se
> conversion would be undefined.
>=20
> So on that basis, the compiler should be allowed to assume that there rea=
lly
> is a B there.

OK, that makes sense.=