[Bug c++/78551] [5/6/7 Regression] Internal compiler error with constexpr initialization of union

[vlad at petric dot cc]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78551

--- Comment #10 from Vlad Petric <vlad at petric dot cc> ---
Could someone boost its priority? Given that gcc segfaults with valid code (see
newest example/attachment), I believe it's worth a P1.