! Ensure that dummy arrays are transferred to the accelerator
! via an implicit pcopy.
! { dg-do run } 
program main
  integer, parameter :: n = 1000
  integer :: a(n)
  integer :: i
  a(:) = -1
  call dummy_array (a, n)
  
  do i = 1, n
     if (a(i) .ne. i) stop 1
  end do
end program main
subroutine dummy_array (a, n)
  integer a(n)
  !$acc parallel loop num_gangs (100) gang
  do i = 1, n
     a(i) = i
  end do
  !$acc end parallel loop
end subroutine