! { dg-do run } program collapse2 call test1 call test2 contains subroutine test1 integer :: i, j, k, a(1:3, 4:6, 5:7) logical :: l l = .false. a(:, :, :) = 0 !$omp parallel do collapse(4 - 1) schedule(static, 4) do 164 i = 1, 3 do 164 j = 4, 6 do 164 k = 5, 7 a(i, j, k) = i + j + k 164 end do !$omp parallel do collapse(2) reduction(.or.:l) firstdo: do i = 1, 3 do j = 4, 6 do k = 5, 7 if (a(i, j, k) .ne. (i + j + k)) l = .true. end do end do end do firstdo !$omp end parallel do if (l) call abort end subroutine test1 subroutine test2 integer :: a(3,3,3), k, kk, kkk, l, ll, lll !$omp do collapse(3) do 115 k=1,3 dokk: do kk=1,3 do kkk=1,3 a(k,kk,kkk) = 1 enddo enddo dokk 115 continue if (any(a(1:3,1:3,1:3).ne.1)) call abort !$omp do collapse(3) dol: do 120 l=1,3 doll: do ll=1,3 do lll=1,3 a(l,ll,lll) = 2 enddo enddo doll 120 end do dol if (any(a(1:3,1:3,1:3).ne.2)) call abort end subroutine test2 end program collapse2