--- /dev/null
+! PR middle-end/33880
+! { dg-do run }
+
+program pr33880
+ integer :: i, j
+ call something ()
+ !$omp parallel do
+ do i = 1, 1000
+ !$omp atomic
+ j = j + 1
+ end do
+ if (j .ne. 1000) call abort
+contains
+ subroutine something()
+ i = 0
+ j = 0
+ end subroutine something
+end program pr33880