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! This test case is expected to fail due to errors.
module mm
implicit none
integer, parameter :: N = 30
integer, parameter :: M = 3
integer :: a(M,N), b(M,N), c(M,N)
contains
subroutine dostuff (index, flag)
integer :: index, flag
end subroutine
! These functions should compile without error.
subroutine good1 ()
integer :: i, j, x, shift
x = 0
!$omp parallel do simd collapse(2) reduction(inscan,+: x) private(shift)
do i = 1, N
do j = 1, M
x = x + a(j,i)
x = x + b(j,i)
!$omp scan inclusive(x)
shift = i + 29*j
c(j,i) = x + shift;
end do
end do
end subroutine
subroutine good2 ()
integer :: i, j, x, shift
x = 0
!$omp parallel do simd collapse(2) reduction(inscan,+: x) private(shift)
do i = 1, N
do j = 1, M
shift = i + 29*j
c(j,i) = x + shift;
!$omp scan exclusive(x)
x = x + a(j,i)
x = x + b(j,i)
end do
end do
end subroutine
! Adding intervening code should trigger an error.
subroutine bad1 ()
integer :: i, j, x, shift
x = 0
!$omp parallel do simd collapse(2) reduction(inscan,+: x) private(shift) ! { dg-error "inner loops must be perfectly nested" }
do i = 1, N
call dostuff (i, 0)
do j = 1, M
x = x + a(j,i)
x = x + b(j,i)
!$omp scan inclusive(x)
shift = i + 29*j
c(j,i) = x + shift;
end do
end do
end subroutine
subroutine bad2 ()
integer :: i, j, x, shift
x = 0
!$omp parallel do simd collapse(2) reduction(inscan,+: x) private(shift) ! { dg-error "inner loops must be perfectly nested" }
do i = 1, N
do j = 1, M
shift = i + 29*j
c(j,i) = x + shift;
!$omp scan exclusive(x)
x = x + a(j,i)
x = x + b(j,i)
end do
call dostuff (i, 1)
end do
end subroutine
end module
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