[Bug c++/120800] [14/15/16 Regression] internal compiler error when using partially initialized class with private constructor and friend

[ppalka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120800

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|internal compiler error     |[14/15/16 Regression]
                   |when using partially        |internal compiler error
                   |initialized class with      |when using partially
                   |private constructor and     |initialized class with
                   |friend                      |private constructor and
                   |                            |friend
      Known to work|                            |14.2.0
      Known to fail|                            |14.3.0, 15.1.0, 16.0
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2025-06-24
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=118285
           Keywords|                            |ice-on-valid-code
             Status|UNCONFIRMED                 |NEW
                 CC|                            |jason at gcc dot gnu.org,
                   |                            |ppalka at gcc dot gnu.org
   Target Milestone|---                         |14.4

--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Confirmed, the ICE (with -std=c++20) started with r15-7260 "c++: constexpr
VEC_INIT_EXPR [PR118285]", which was backported for 14.3.