[Bug c++/63707] Brace initialization of array sometimes fails if no copy constructor

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63707

--- Comment #20 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:

https://gcc.gnu.org/g:ca02f0a0eb0fbeb3c1e01c3a55a95b0690ecfabc

commit r9-9212-gca02f0a0eb0fbeb3c1e01c3a55a95b0690ecfabc
Author: Jason Merrill <jason@redhat.com>
Date:   Fri Jan 15 11:42:00 2021 -0500

    c++: Fix list-init of array of no-copy type [PR63707]

    build_vec_init_elt models initialization from some arbitrary object of the
    type, i.e. copy, but in the case of list-initialization we don't do a copy
    from the elements, we initialize them directly.

    gcc/cp/ChangeLog:

            PR c++/63707
            * tree.c (build_vec_init_expr): Don't call build_vec_init_elt
            if we got a CONSTRUCTOR.

    gcc/testsuite/ChangeLog:

            PR c++/63707
            * g++.dg/cpp0x/initlist-array13.C: New test.