https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89478
--- Comment #2 from SztfG at yandex dot ru --- (In reply to Marc Glisse from comment #1) > I think the uninitialized variable makes the initialization not constexpr > (and indeed gcc/clang complain if you try to declare test constexpr). Then > we hit the well-known missed optimization that gcc is unable to convert a > dynamic initialization into a static initialization even in the most trivial > constant cases. Then need to mark this bug as duplicate, but where that bug in GCC bugzilla, which about that well-known missed optimization?
