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! RUN: %python %S/../test_errors.py %s %flang -fopenacc
! Check OpenACC canonalization validity for the construct defined below:
! 2.9 Loop
! 2.11 Parallel Loop
! 2.11 Kernels Loop
! 2.11 Serial Loop
program openacc_clause_validity
implicit none
integer :: i, j
integer :: N = 256
real(8) :: a(256)
real(8) :: aa(256, 256)
!ERROR: A DO loop must follow the LOOP directive
!$acc loop
i = 1
!ERROR: DO loop after the LOOP directive must have loop control
!$acc loop
do
end do
!ERROR: A DO loop must follow the PARALLEL LOOP directive
!$acc parallel loop
i = 1
!ERROR: A DO loop must follow the KERNELS LOOP directive
!$acc kernels loop
i = 1
!ERROR: A DO loop must follow the SERIAL LOOP directive
!$acc serial loop
i = 1
!ERROR: The END PARALLEL LOOP directive must follow the DO loop associated with the loop construct
!$acc end parallel loop
!ERROR: The END KERNELS LOOP directive must follow the DO loop associated with the loop construct
!$acc end kernels loop
!ERROR: The END SERIAL LOOP directive must follow the DO loop associated with the loop construct
!$acc end serial loop
!$acc parallel loop
do i = 1, N
a(i) = 3.14
end do
!$acc kernels loop
do i = 1, N
a(i) = 3.14
end do
!$acc serial loop
do i = 1, N
a(i) = 3.14
end do
!$acc parallel loop
do i = 1, N
a(i) = 3.14
end do
!$acc end parallel loop
!$acc kernels loop
do i = 1, N
a(i) = 3.14
end do
!$acc end kernels loop
!$acc serial loop
do i = 1, N
a(i) = 3.14
end do
!$acc end serial loop
!ERROR: DO loop after the PARALLEL LOOP directive must have loop control
!$acc parallel loop
do
end do
!ERROR: DO loop after the KERNELS LOOP directive must have loop control
!$acc kernels loop
do
end do
!ERROR: DO loop after the SERIAL LOOP directive must have loop control
!$acc serial loop
do
end do
!$acc parallel
!ERROR: The loop construct with the TILE clause must be followed by 2 tightly-nested loops
!$acc loop tile(2, 2)
do i = 1, N
a(i) = 3.14
end do
!$acc end parallel
!ERROR: The loop construct with the TILE clause must be followed by 2 tightly-nested loops
!$acc parallel loop tile(2, 2)
do i = 1, N
a(i) = 3.14
end do
!$acc parallel
!ERROR: TILE and COLLAPSE clause may not appear on loop construct associated with DO CONCURRENT
!$acc loop collapse(2)
do concurrent (i = 1:N, j = 1:N)
aa(i, j) = 3.14
end do
!$acc end parallel
!$acc parallel
!ERROR: TILE and COLLAPSE clause may not appear on loop construct associated with DO CONCURRENT
!$acc loop tile(2, 2)
do concurrent (i = 1:N, j = 1:N)
aa(i, j) = 3.14
end do
!$acc end parallel
end program openacc_clause_validity
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