gcc/testsuite/gfortran.dg/goacc/kernels-loop-data-update.f95

   1 ! { dg-additional-options "-O2" }
   2 ! { dg-additional-options "-fdump-tree-parloops1-all" }
   3 ! { dg-additional-options "-fdump-tree-optimized" }
   4
   5 program main
   6   implicit none
   7   integer, parameter         :: n = 1024
   8   integer, dimension (0:n-1) :: a, b, c
   9   integer                    :: i, ii
  10
  11   !$acc enter data create (a(0:n-1), b(0:n-1), c(0:n-1))
  12
  13   !$acc kernels present (a(0:n-1))
  14   do i = 0, n - 1
  15      a(i) = i * 2
  16   end do
  17   !$acc end kernels
  18
  19   do i = 0, n -1
  20      b(i) = i * 4
  21   end do
  22
  23   !$acc update device (b(0:n-1))
  24
  25   !$acc kernels present (a(0:n-1), b(0:n-1), c(0:n-1))
  26   do ii = 0, n - 1
  27      c(ii) = a(ii) + b(ii)
  28   end do
  29   !$acc end kernels
  30
  31   !$acc exit data copyout (a(0:n-1), c(0:n-1))
  32
  33   do i = 0, n - 1
  34      if (c(i) .ne. a(i) + b(i)) STOP 1
  35   end do
  36
  37 end program main
  38
  39 ! Check that only three loops are analyzed, and that all can be parallelized.
  40 ! { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 2 "parloops1" } }
  41 ! { dg-final { scan-tree-dump-times "(?n)__attribute__\\(\\(oacc kernels parallelized, oacc function \\(, , \\), oacc kernels, omp target entrypoint\\)\\)" 2 "parloops1" } }
  42 ! { dg-final { scan-tree-dump-not "FAILED:" "parloops1" } }
  43
  44 ! Check that the loop has been split off into a function.
  45 ! { dg-final { scan-tree-dump-times "(?n);; Function MAIN__._omp_fn.0 " 1 "optimized" } }
  46 ! { dg-final { scan-tree-dump-times "(?n);; Function MAIN__._omp_fn.1 " 1 "optimized" } }