FWIW numba at least supports both cases depending how the decorator is used: - if you just `@jit`, it will create a megamorphic function with specialisations g

FWIW numba at least supports both cases depending how the decorator is used: - if you just `@jit`, it will create a megamorphic function with specialisations generated at runtime - if you pass a signature to `@jit`, it will compile a monomorphic function during loading