Have spent some time trying to get a reproducer for this error:
PGF90-F-0000-Internal compiler error. set_assumed_bounds: arg not deferred
with no luck so far. Anything small enough to send, the error disappears. This is with Fortran 20.1 as well as an earlier version (19.10). Another compiler (Intel) is happy with the code.
The code that’s causing the error is in the interface definition for a type-bound procedure:
module subroutine cart2sph_vector(this,q0) implicit none class(rotate_t), intent(inout) :: this real(kind=r8), intent(inout) :: q0(:,:) end subroutine cart2sph_vector
If I comment out the second argument, q0, and its declaration statement, the problem goes away. I will keep trying to come up with a reproducer, but in the meantime let me please ask: is this legal Fortran in the first place? That is, is it legal to have a deferred-shape dummy array argument in the interface of a type-bound procedure? (The type is not declared as abstract).
Thanks for your advice.