Arguments to macros

Why is macro arglist not displayed with `C-h f'? Case in point: I'm interested in `check-argument-type' macro. I press `C-h f check-argument-type RET', and I get: `check-argument-type' is a compiled Lisp macro -- loaded from "/home/hniksic/work/emacs/build/lisp/subr.elc" Documentation: Check that ARGUMENT satisfies PREDICATE. ... Arglist is not printed anywhere, so this might imply that ARGUMENT comes before PREDICATE, while in fact it doesn't. So I wonder: why are arglists not printed for macros? Can we fix that?