gcc/testsuite/gfortran.dg/goacc/kernels-parallel-loop-data-enter-exit.f95

! { dg-additional-options "-O2" }
! { dg-additional-options "-fdump-tree-parloops1-all" }
! { dg-additional-options "-fdump-tree-optimized" }

program main
  implicit none
  integer, parameter         :: n = 1024
  integer, dimension (0:n-1) :: a, b, c
  integer                    :: i, ii

  !$acc enter data create (a(0:n-1), b(0:n-1), c(0:n-1))

  !$acc kernels present (a(0:n-1))
  do i = 0, n - 1
     a(i) = i * 2
  end do
  !$acc end kernels

  !$acc parallel present (b(0:n-1))
  !$acc loop
  do i = 0, n -1
     b(i) = i * 4
  end do
  !$acc end parallel

  !$acc kernels present (a(0:n-1), b(0:n-1), c(0:n-1))
  do ii = 0, n - 1
     c(ii) = a(ii) + b(ii)
  end do
  !$acc end kernels

  !$acc exit data copyout (a(0:n-1), b(0:n-1), c(0:n-1))

  do i = 0, n - 1
     if (c(i) .ne. a(i) + b(i)) call abort
  end do

end program main

! Check that only three loops are analyzed, and that all can be parallelized.
! { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 2 "parloops1" { xfail *-*-* } } }
! { dg-final { scan-tree-dump-times "(?n)__attribute__\\(\\(oacc kernels parallelized, oacc function \\(, , \\), oacc kernels, omp target entrypoint\\)\\)" 2 "parloops1" { xfail *-*-* } } }
! { dg-final { scan-tree-dump-not "FAILED:" "parloops1" { xfail *-*-* } } }

! Check that the loop has been split off into a function.
! { dg-final { scan-tree-dump-times "(?n);; Function MAIN__._omp_fn.0 " 1 "optimized" } }
! { dg-final { scan-tree-dump-times "(?n);; Function MAIN__._omp_fn.1 " 1 "optimized" } }
! { dg-final { scan-tree-dump-times "(?n);; Function MAIN__._omp_fn.2 " 1 "optimized" } }