[Bug c++/105901] [C++20] Code generation bug. Well-formed Program segfaults.

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105901

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And my bet is it's due to using braced-init instead of parentheses.