https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83689
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- #include <type_traits> struct X { X() {} }; void test01() { static_assert(std::is_trivially_constructible<X[4]>::value); } ICEs too (but not std::is_constructible).