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! { dg-do run }
! { dg-require-effective-target offload_device }
subroutine init (v1, v2, N)
!$omp declare target
integer :: i, N
real :: v1(N), v2(N)
do i = 1, N
v1(i) = i + 2.0
v2(i) = i - 3.0
end do
end subroutine
subroutine check (p, N)
integer :: i, N
real, parameter :: EPS = 0.00001
real :: diff, p(N)
do i = 1, N
diff = p(i) - (i + 2.0) * (i - 3.0)
if (diff > EPS .or. -diff > EPS) call abort
end do
end subroutine
subroutine vec_mult (p, N)
use omp_lib, only: omp_is_initial_device
real :: p(N)
real, allocatable :: v1(:), v2(:)
integer :: i
!$omp declare target (init)
!$omp target data map(to: v1, v2, N) map(from: p)
!$omp task shared(v1, v2, p) depend(out: v1, v2)
!$omp target map(to: v1, v2, N)
if (omp_is_initial_device ()) call abort
allocate (v1(N), v2(N))
call init (v1, v2, N)
!$omp end target
!$omp end task
!$omp task shared(v1, v2, p) depend(in: v1, v2)
!$omp target map(to: v1, v2, N) map(from: p)
if (omp_is_initial_device ()) call abort
!$omp parallel do
do i = 1, N
p(i) = v1(i) * v2(i)
end do
deallocate (v1, v2)
!$omp end target
!$omp end task
!$omp end target data
call check (p, N)
end subroutine
program e_55_2
integer, parameter :: N = 1000
real :: p(N)
call vec_mult (p, N)
end program
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