1! { dg-do run }
2! { dg-require-effective-target offload_device }
3
4module e_50_5_mod
5integer, parameter :: THRESHOLD1 = 500, THRESHOLD2 = 100
6contains
7  subroutine init (v1, v2, N)
8    integer :: i, N
9    real :: v1(N), v2(N)
10    do i = 1, N
11      v1(i) = i + 2.0
12      v2(i) = i - 3.0
13    end do
14  end subroutine
15
16  subroutine check (p, N)
17    integer :: i, N
18    real, parameter :: EPS = 0.00001
19    real :: diff, p(N)
20    do i = 1, N
21      diff = p(i) - (i + 2.0) * (i - 3.0)
22      if (diff > EPS .or. -diff > EPS) call abort
23    end do
24  end subroutine
25
26  subroutine vec_mult (N)
27    use omp_lib, only: omp_is_initial_device
28    integer :: i, N
29    real :: p(N), v1(N), v2(N)
30    call init (v1, v2, N)
31    !$omp target if(N > THRESHOLD1) map(to: v1,v2) map(from: p)
32      if (omp_is_initial_device ()) call abort
33      !$omp parallel do if(N > THRESHOLD2)
34      do i = 1, N
35        p(i) = v1(i) * v2(i)
36      end do
37    !$omp end target
38    call check (p, N)
39  end subroutine
40end module
41
42program e_50_5
43  use e_50_5_mod, only : vec_mult
44  integer :: n
45  n = 1000
46  call vec_mult (n)
47end program
48