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 17C813854156; Tue, 18 Apr 2023 20:46:29 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 17C813854156
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1681850789;
	bh=kWv43AR6c9xHDqhq/dEP0GvX03soTAYDfrXXpMYoJ6U=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=HWEqOGM2uN5KD0U22b0MJ6v8WlhZFCCtAm5esLoqpBQ0Zrs972oqFO3vk0sEOzhJP
	 MF11/SkTKLHm1itOmqcn+Pv6keFkmm6ExvElc7D5f6JC0n+j66IGYxvfEpIUBWdfso
	 1hMvlov3OxouNbgeHZEtvclLEBI7m6G+kizun8C8=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/106890] [10/11/12 Regression] virtual inheritance triggers
 compiler error when instatiating derived class with in-class initialization
 since r8-2709-g12659e10c7820071
Date: Tue, 18 Apr 2023 20:46:28 +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: 12.2.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: jason at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 10.5
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-106890-4-f4VKLYf5oN@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-106890-4@http.gcc.gnu.org/bugzilla/>
References: <bug-106890-4@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=3D106890

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:

https://gcc.gnu.org/g:94569d91bd4c604da755b4aae84256e7fe21196a

commit r12-9441-g94569d91bd4c604da755b4aae84256e7fe21196a
Author: Jason Merrill <jason@redhat.com>
Date:   Sat Mar 18 08:27:26 2023 -0400

    c++: DMI in template with virtual base [PR106890]

    When parsing a default member init we just build a CONVERT_EXPR for
    converting to a virtual base, and then expand that into the more complex
    form when we actually use the DMI in a constructor.  But that wasn't
working
    for the template case where we are considering the conversion at the po=
int
    that the constructor needs the DMI instantiation, so it seemed like we =
were
    in a constructor already.  And then when the other constructor tries to
    reuse the instantiation, it sees uses of the first constructor's
parameters,
    and dies.  So ensure that we get the CONVERT_EXPR in this case, too.

            PR c++/106890

    gcc/cp/ChangeLog:

            * init.cc (maybe_instantiate_nsdmi_init): Don't leave
            current_function_decl set to a constructor.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp0x/nsdmi-template25.C: New test.=