flang/test/Semantics/OpenACC/acc-cache-validity.f90

! RUN: %python %S/../test_errors.py %s %flang -fopenacc

! Check OpenACC clause validity for the following construct and directive:
!   2.10 Cache

program openacc_cache_validity

  implicit none

  type atype
    real(8), dimension(10) :: arr
    real(8) :: s
  end type atype

  integer :: i
  integer, parameter :: N = 256
  real(8), dimension(N, N) :: aa
  type(atype) :: t
  type(atype), dimension(10) :: ta
  real(8), dimension(N) :: a

  do i = 1, N

  !$acc cache(a(i))
  !$acc cache(a(1:2,3:4))
  !$acc cache(a)
  !$acc cache(readonly: a, aa)
  !$acc cache(readonly: a(i), aa(i, i))
  !$acc cache(t%arr)
  !$acc cache(ta(1:2)%arr)
  !$acc cache(ta(1:2)%arr(1:4))
  !$acc cache(i)
  !$acc cache(t%s)

  !ERROR: Only array element or subarray are allowed in CACHE directive
  !$acc cache(t)

  !ERROR: Only array element or subarray are allowed in CACHE directive
  !$acc cache(/i/)

  !ERROR: The CACHE directive requires at least one of the bounds in the array section subscript triplet to be specified
  !$acc cache(a(:))

  !ERROR: The CACHE directive requires at least one of the bounds in the array section subscript triplet to be specified
  !$acc cache(aa(:,:))

  !ERROR: The CACHE directive does not support strided array sections
  !$acc cache(a(1:10:2))

  !ERROR: The CACHE directive does not support strided array sections
  !$acc cache(aa(1:10:2, 1:5))

  end do

  !ERROR: The CACHE directive must be inside a loop
  !$acc cache(a)

end program openacc_cache_validity