RANK intrinsic not implemented?

the RANK intrinsic seems to be missing even in the latest nvfortran 22.3:

program p
  integer, parameter :: x(2,3) = 1
  print *, rank (x)

I get an undefined reference to `rank_’ at link time.
RANK also is not available in constant expressions (PARAMETER).

Correct, nvfortran wont have full support for F2018, including the RANK intrinsic. These features are being included as part of our work with the LLVM community to develop the new flag (aka F18). Once complete, the current nvfortran will be replaced by this.