[Bug c++/99200] __PRETTY_FUNCTION__ used as template parameter causes internal compiler error (segmentation fault)

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99200

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Patrick Palka
<ppalka@gcc.gnu.org>:

https://gcc.gnu.org/g:9532344edcf77c7c7b0fa5da31c1b9dd2850288e

commit r11-8309-g9532344edcf77c7c7b0fa5da31c1b9dd2850288e
Author: Patrick Palka <ppalka@redhat.com>
Date:   Sat Apr 24 00:14:29 2021 -0400

    c++: do_class_deduction and dependent init [PR93383]

    Here we're crashing during CTAD with a dependent initializer (performed
    from convert_template_argument) because one of the initializer's
    elements has an empty TREE_TYPE, which ends up making resolve_args
    unhappy.

    Besides the case where we're initializing one template placeholder
    from another, which is already specifically handled earlier in
    do_class_deduction, it seems we can't in general correctly resolve a
    template placeholder using a dependent initializer, so this patch makes
    the function just punt until instantiation time instead.

    gcc/cp/ChangeLog:

            PR c++/89565
            PR c++/93383
            PR c++/95291
            PR c++/99200
            PR c++/99683
            * pt.c (do_class_deduction): Punt if the initializer is
            type-dependent.

    gcc/testsuite/ChangeLog:

            PR c++/89565
            PR c++/93383
            PR c++/95291
            PR c++/99200
            PR c++/99683
            * g++.dg/cpp2a/nontype-class39.C: Remove dg-ice directive.
            * g++.dg/cpp2a/nontype-class45.C: New test.
            * g++.dg/cpp2a/nontype-class46.C: New test.
            * g++.dg/cpp2a/nontype-class47.C: New test.
            * g++.dg/cpp2a/nontype-class48.C: New test.

    (cherry picked from commit bcd77b7b9f35bd5b559ed593c3b3e346c1e6f364)