A function should not have to be labelled as comptime to be run at comptime. There are cases when you might want to run the same function at comptime as at run

A function should not have to be labelled as comptime to be run at comptime. There are cases when you might want to run the same function at comptime as at runtime (for example, if you want to do a thing with algorithm X but cache the result for a series of trivial cases as a lookup table). Putting it at the callsite is more explicit actually and for example generating precompiled arrays clearly ties comptimeness to the actual artifact created instead of making it inferred from the signature of the function (which may be very far away in code)