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 83B5D39B8C8E; Thu, 11 Feb 2021 16:00:36 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 83B5D39B8C8E
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/97582] [9/10/11 Regression] ICE tree check: expected
 function_type or method_type, have error_mark in add_function_candidate, at
 cp/call.c:2146 since r9-6405-gbddee796d0b4800b
Date: Thu, 11 Feb 2021 16:00:36 +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: 9.3.0
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: ppalka at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 9.4
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-97582-4-L6zwRE9nSZ@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-97582-4@http.gcc.gnu.org/bugzilla/>
References: <bug-97582-4@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
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Thu, 11 Feb 2021 16:00:36 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97582

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:

https://gcc.gnu.org/g:cb168f779c87c1e0c37d22ea82dfb93ff8c873bc

commit r11-7191-gcb168f779c87c1e0c37d22ea82dfb93ff8c873bc
Author: Patrick Palka <ppalka@redhat.com>
Date:   Thu Feb 11 10:59:54 2021 -0500

    c++: Fix ICE from op_unqualified_lookup [PR97582]

    In this testcase, we're crashing because the lookup of operator+ from
    within the generic lambda via lookup_name finds multiple bindings
    (C1::operator+ and C2::operator+) and returns a TREE_LIST thereof,
    something which op_unqualified_lookup (and push_operator_bindings) isn't
    prepared to handle.

    This patch extends op_unqualified_lookup and push_operator_bindings
    to handle such an ambiguous lookup result in the natural way.

    gcc/cp/ChangeLog:

            PR c++/97582
            * name-lookup.c (op_unqualified_lookup): Handle an ambiguous
            lookup result by discarding it if the first element is a
            class-scope declaration, otherwise return it.
            (push_operator_bindings): Handle an ambiguous lookup result by
            doing push_local_binding on each element in the list.

    gcc/testsuite/ChangeLog:

            PR c++/97582
            * g++.dg/cpp0x/lambda/lambda-template17.C: New test.=