https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108243
--- Comment #9 from Patrick Palka <ppalka at gcc dot gnu.org> ---
(In reply to Jiang An from comment #8)
> This seems a bug, not merely missing of optimization. The string_view object
> should always be statically initialized, because it has static storage
> duration and its initializer is a constant iniitializer.
Good point. It looks like we're inconsistent about static initialization here
-- we do it for suitable copy initialization but not for suitable direct
initialization:
static std::string_view foo1 = {"bar"}; // static initialization
static std::string_view foo2("bar"); // dynamic initialization
