! { dg-do run }

program asyncwait
  integer, parameter :: N = 64
  real, allocatable :: a(:), b(:), c(:), d(:), e(:)
  integer i

  allocate (a(N))
  allocate (b(N))
  allocate (c(N))
  allocate (d(N))
  allocate (e(N))

  a(:) = 3.0
  b(:) = 0.0

  !$acc data copy (a(1:N)) copy (b(1:N))

  !$acc parallel async
  !$acc loop
  do i = 1, N
     b(i) = a(i)
  end do
  !$acc end parallel

  !$acc wait
  !$acc end data

  do i = 1, N
     if (a(i) .ne. 3.0) STOP 1
     if (b(i) .ne. 3.0) STOP 2
  end do

  a(:) = 2.0
  b(:) = 0.0

  !$acc data copy (a(1:N)) copy (b(1:N))

  !$acc parallel async (1)
  !$acc loop
  do i = 1, N
     b(i) = a(i)
  end do
  !$acc end parallel

  !$acc wait (1)
  !$acc end data

  do i = 1, N
     if (a(i) .ne. 2.0) STOP 3
     if (b(i) .ne. 2.0) STOP 4
  end do

  a(:) = 3.0
  b(:) = 0.0
  c(:) = 0.0
  d(:) = 0.0

  !$acc data copy (a(1:N)) copy (b(1:N)) copy (c(1:N)) copy (d(1:N))

  !$acc parallel async (1)
  do i = 1, N
     b(i) = (a(i) * a(i) * a(i)) / a(i)
  end do
  !$acc end parallel

  !$acc parallel async (1)
  do i = 1, N
     c(i) = (a(i) * 4) / a(i)
  end do
  !$acc end parallel

  !$acc parallel async (1)
  !$acc loop
  do i = 1, N
     d(i) = ((a(i) * a(i) + a(i)) / a(i)) - a(i)
  end do
  !$acc end parallel

  !$acc wait (1)
  !$acc end data

  do i = 1, N
     if (a(i) .ne. 3.0) STOP 5
     if (b(i) .ne. 9.0) STOP 6
     if (c(i) .ne. 4.0) STOP 7
     if (d(i) .ne. 1.0) STOP 8
  end do

  a(:) = 2.0
  b(:) = 0.0
  c(:) = 0.0
  d(:) = 0.0
  e(:) = 0.0

  !$acc data copy (a(1:N), b(1:N), c(1:N), d(1:N), e(1:N))

  !$acc parallel async (1)
  do i = 1, N
     b(i) = (a(i) * a(i) * a(i)) / a(i)
  end do
  !$acc end parallel

  !$acc parallel async (1)
  !$acc loop
  do i = 1, N
     c(i) = (a(i) * 4) / a(i)
  end do
  !$acc end parallel

  !$acc parallel async (1)
  !$acc loop
  do i = 1, N
     d(i) = ((a(i) * a(i) + a(i)) / a(i)) - a(i)
  end do
  !$acc end parallel

  !$acc parallel wait (1) async (1)
  !$acc loop
  do i = 1, N
     e(i) = a(i) + b(i) + c(i) + d(i)
  end do
  !$acc end parallel

  !$acc wait (1)
  !$acc end data

  do i = 1, N
     if (a(i) .ne. 2.0) STOP 9
     if (b(i) .ne. 4.0) STOP 10
     if (c(i) .ne. 4.0) STOP 11
     if (d(i) .ne. 1.0) STOP 12
     if (e(i) .ne. 11.0) STOP 13
  end do

  a(:) = 3.0
  b(:) = 0.0

  !$acc data copy (a(1:N)) copy (b(1:N))

  !$acc kernels async
  !$acc loop
  do i = 1, N
     b(i) = a(i)
  end do
  !$acc end kernels

  !$acc wait
  !$acc end data

  do i = 1, N
     if (a(i) .ne. 3.0) STOP 14
     if (b(i) .ne. 3.0) STOP 15
  end do

  a(:) = 2.0
  b(:) = 0.0

  !$acc data copy (a(1:N)) copy (b(1:N))

  !$acc kernels async (1)
  !$acc loop
  do i = 1, N
     b(i) = a(i)
  end do
  !$acc end kernels

  !$acc wait (1)
  !$acc end data

  do i = 1, N
     if (a(i) .ne. 2.0) STOP 16
     if (b(i) .ne. 2.0) STOP 17
  end do

  a(:) = 3.0
  b(:) = 0.0
  c(:) = 0.0
  d(:) = 0.0

  !$acc data copy (a(1:N)) copy (b(1:N)) copy (c(1:N)) copy (d(1:N))

  !$acc kernels async (1)
  do i = 1, N
     b(i) = (a(i) * a(i) * a(i)) / a(i)
  end do
  !$acc end kernels

  !$acc kernels async (1)
  do i = 1, N
     c(i) = (a(i) * 4) / a(i)
  end do
  !$acc end kernels

  !$acc kernels async (1)
  !$acc loop
  do i = 1, N
     d(i) = ((a(i) * a(i) + a(i)) / a(i)) - a(i)
  end do
  !$acc end kernels

  !$acc wait (1)
  !$acc end data

  do i = 1, N
     if (a(i) .ne. 3.0) STOP 18
     if (b(i) .ne. 9.0) STOP 19
     if (c(i) .ne. 4.0) STOP 20
     if (d(i) .ne. 1.0) STOP 21
  end do

  a(:) = 2.0
  b(:) = 0.0
  c(:) = 0.0
  d(:) = 0.0
  e(:) = 0.0

  !$acc data copy (a(1:N), b(1:N), c(1:N), d(1:N), e(1:N))

  !$acc kernels async (1)
  do i = 1, N
     b(i) = (a(i) * a(i) * a(i)) / a(i)
  end do
  !$acc end kernels

  !$acc kernels async (1)
  !$acc loop
  do i = 1, N
     c(i) = (a(i) * 4) / a(i)
  end do
  !$acc end kernels

  !$acc kernels async (1)
  !$acc loop
  do i = 1, N
     d(i) = ((a(i) * a(i) + a(i)) / a(i)) - a(i)
  end do
  !$acc end kernels

  !$acc kernels wait (1) async (1)
  !$acc loop
  do i = 1, N
     e(i) = a(i) + b(i) + c(i) + d(i)
  end do
  !$acc end kernels

  !$acc wait (1)
  !$acc end data

  do i = 1, N
     if (a(i) .ne. 2.0) STOP 22
     if (b(i) .ne. 4.0) STOP 23
     if (c(i) .ne. 4.0) STOP 24
     if (d(i) .ne. 1.0) STOP 25
     if (e(i) .ne. 11.0) STOP 26
  end do
end program asyncwait