[Bug c++/83937] [7/8 Regression] C++17 binds braced init of a type T to default arg of a ctor instead of using T's own default ctor

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83937

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|FIXME                       |
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |jason at gcc dot gnu.org,
                   |                            |nathan at gcc dot gnu.org,
                   |                            |redi at gcc dot gnu.org
   Target Milestone|---                         |7.3
            Summary|[REGRESSION] C++17 binds    |[7/8 Regression] C++17
                   |braced init of a type T to  |binds braced init of a type
                   |default arg of a ctor       |T to default arg of a ctor
                   |instead of using T's own    |instead of using T's own
                   |default ctor                |default ctor

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This changed with r240889 aka P0135 refinement, but whether it is intentional
and why, or a bug, I'll defer to the C++ folks.