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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/109241] [13 Regression] ICE Segmentation fault for
 statement expression with a local type inside inside a generic lambda inside
 a generic lambda since r13-6722-gb323f52ccf966800
Date: Thu, 23 Mar 2023 03:24:07 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109241

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:4872e46e080c6695dfe1f9dc9db26b4703bc348c

commit r13-6824-g4872e46e080c6695dfe1f9dc9db26b4703bc348c
Author: Jason Merrill <jason@redhat.com>
Date:   Wed Mar 22 16:11:47 2023 -0400

    c++: local class in nested generic lambda [PR109241]

    In this testcase, the tree walk to look for bare parameter packs was
    confused by finding a type with no TREE_BINFO.  But it should be fine t=
hat
    it's unset; we already checked for unexpanded packs at parse time.

    I also tried doing the partial instantiation of the local class, which =
is
    probably the long-term direction we want to go, but for stage 4 let's go
    with this safer change.

            PR c++/109241

    gcc/cp/ChangeLog:

            * pt.cc (find_parameter_packs_r): Handle null TREE_BINFO.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp1y/lambda-generic-local-class2.C: New test.=