[Bug c++/61414] enum class bitfield size-checking needs a separate warning flag controlling it

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61414

--- Comment #27 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Jakub Jelinek
<jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:f0a72494ea3747d1f66a0cda3e67a7611779030d

commit r9-8238-gf0a72494ea3747d1f66a0cda3e67a7611779030d
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Fri Feb 14 17:36:00 2020 +0100

    c++: Fix thinko in enum_min_precision [PR61414]

    When backporting the PR61414 fix to 8.4, I've noticed that the caching
    of prec is actually broken, as it would fail to actually store the computed
    precision into the hash_map's value and so next time we'd think the enum
needs
    0 bits.

    2020-02-14  Jakub Jelinek  <jakub@redhat.com>

        PR c++/61414
        * class.c (enum_min_precision): Change prec type from int to int &.

        * g++.dg/cpp0x/enum39.C: New test.