gcc/testsuite/gfortran.dg/gomp/reduction6.f90

! { dg-do compile }

implicit none
integer :: a, b, i
a = 0

!$omp simd reduction(inscan,+:a)  ! { dg-error "30: With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" }
do i=1,10
  a = a + 1
end do

!$omp parallel
!$omp do reduction(inscan,+:a)  ! { dg-error "28: With INSCAN at .1., expected loop body with ..OMP SCAN between two structured-block-sequences" }
do i=1,10
  a = a + 1
end do
!$omp end parallel
end