flang/test/Semantics/omp-nested-target.f90

   1 ! RUN: %python %S/test_errors.py %s %flang_fc1 -fopenmp
   2
   3 ! OpenMP Version 5.0
   4 ! Check OpenMP construct validity for the following directives:
   5 ! 2.12.5 Target Construct
   6
   7 program main
   8   integer :: i, j, N = 10
   9   real :: a, arrayA(512), arrayB(512), ai(10)
  10   real, allocatable :: B(:)
  11
  12   !$omp target
  13   !WARNING: If TARGET UPDATE directive is nested inside TARGET region, the behaviour is unspecified
  14   !$omp target update from(arrayA) to(arrayB)
  15   do i = 1, 512
  16     arrayA(i) = arrayB(i)
  17   end do
  18   !$omp end target
  19
  20   !$omp parallel
  21   !$omp target
  22   !$omp parallel
  23   !WARNING: If TARGET UPDATE directive is nested inside TARGET region, the behaviour is unspecified
  24   !$omp target update from(arrayA) to(arrayB)
  25   do i = 1, 512
  26     arrayA(i) = arrayB(i)
  27   end do
  28   !$omp end parallel
  29   !$omp end target
  30   !$omp end parallel
  31
  32   !$omp target
  33   !WARNING: If TARGET DATA directive is nested inside TARGET region, the behaviour is unspecified
  34   !$omp target data map(to: a)
  35   do i = 1, N
  36     a = 3.14
  37   end do
  38   !$omp end target data
  39   !$omp end target
  40
  41   allocate(B(N))
  42   !$omp target
  43   !WARNING: If TARGET ENTER DATA directive is nested inside TARGET region, the behaviour is unspecified
  44   !$omp target enter data map(alloc:B)
  45   !$omp end target
  46
  47   !$omp target
  48   !WARNING: If TARGET EXIT DATA directive is nested inside TARGET region, the behaviour is unspecified
  49   !$omp target exit data map(delete:B)
  50   !$omp end target
  51   deallocate(B)
  52
  53 end program main