! { dg-do run } ! program foo implicit none integer, parameter :: n = 100 integer, dimension(n,n) :: a integer :: i, j, sum = 0 a = 1 !$acc parallel copyin(a(1:n,1:n)) firstprivate (sum) !$acc loop gang reduction(+:sum) do i=1, n !$acc loop vector reduction(+:sum) do j=1, n sum = sum + a(i, j) enddo enddo !$acc end parallel end program foo