https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102090
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- It is not broken. The C++ FE knows std::construct_at is special and allows placement new in there as implementation detail in constant expressions. See uses of is_std_construct_at in gcc/cp/constexpr.c.