[Bug c++/92601] [9 Regression] error: type variant differs by TYPE_NEEDS_CONSTRUCTING

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92601

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Jason Merrill
<ja...@gcc.gnu.org>:

https://gcc.gnu.org/g:9d5df8e3221c5fe5c8aca0334655b075bd9ea556

commit r9-8321-g9d5df8e3221c5fe5c8aca0334655b075bd9ea556
Author: Jason Merrill <ja...@redhat.com>
Date:   Mon Mar 2 14:42:47 2020 -0500

    checking: avoid verify_type_variant crash on incomplete type.

    Here, we end up calling gen_type_die_with_usage for a type that's in the
    middle of finish_struct_1, after we set TYPE_NEEDS_CONSTRUCTING on it but
    before we copy all the flags to the variants--and, significantly, before we
    set its TYPE_SIZE.  It seems reasonable to only look at
    TYPE_NEEDS_CONSTRUCTING on complete types, since we aren't going to try to
    create an object of an incomplete type any other way.

    gcc/ChangeLog
    2020-03-02  Jason Merrill  <ja...@redhat.com>

        PR c++/92601
        * tree.c (verify_type_variant): Only verify TYPE_NEEDS_CONSTRUCTING
        of complete types.