[Bug c++/102434] [11/12 Regression] ICE in output_constructor_regular_field, at varasm.c:5514 since r11-4547-g6fb7e3c29188ab7c

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102434

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>:

https://gcc.gnu.org/g:b1a8b92f8f78536a00012e2e53a0d12ddbe6836d

commit r12-6951-gb1a8b92f8f78536a00012e2e53a0d12ddbe6836d
Author: Marek Polacek <pola...@redhat.com>
Date:   Fri Jan 28 20:01:06 2022 -0500

    c++: Reject union std::initializer_list [PR102434]

    Weird things are going to happen if you define your std::initializer_list
    as a union.  In this case, we crash in output_constructor_regular_field.

    Let's not allow such a definition in the first place.

            PR c++/102434

    gcc/cp/ChangeLog:

            * class.cc (finish_struct): Don't allow union initializer_list.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp0x/initlist128.C: New test.