https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84973
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- clang++ rejects this with error: reference to non-static member function must be called. GCC rejects that too, but only during instantiation, e.g. if I add int v; as the first line and int main () { a <0> (); } at the end, I get: invalid use of non-static member function error. No idea what's wrong here though, we really shouldn't notice_global_symbol with something that is not really going to be emitted and likely isn't instantiated at all.