libgomp/testsuite/libgomp.oacc-fortran/kernels-reduction-1.f90

   1 ! Test a simple acc loop reduction inside a kernels region.
   2
   3 ! { dg-do run }
   4
   5 ! { dg-additional-options "--param=openacc-kernels=decompose" }
   6
   7 ! { dg-additional-options "-fopt-info-all-omp" }
   8 ! { dg-additional-options "-foffload=-fopt-info-all-omp" } */
   9
  10 ! { dg-additional-options "--param=openacc-privatization=noisy" }
  11 ! { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
  12 ! Prune a few: uninteresting, and potentially varying depending on GCC configuration (data types):
  13 ! { dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} } */
  14
  15 program reduction
  16   integer, parameter     :: n = 20
  17   integer                :: i, red
  18
  19   red = 0
  20
  21   !$acc kernels ! { dg-line l_compute1 } */
  22   ! { dg-note {OpenACC 'kernels' decomposition: variable 'red' in 'copy' clause requested to be made addressable} {} { target *-*-* } l_compute1 }
  23   !   { dg-note {variable 'red' made addressable} {} { target *-*-* } l_compute1 }
  24   !$acc loop reduction (+:red) ! { dg-line l_loop_i1 }
  25   ! { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } l_loop_i1 }
  26   ! { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i1 }
  27   ! { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i1 }
  28   do i = 1, n
  29      red = red + 1
  30   end do
  31   !$acc end kernels
  32
  33   if (red .ne. n) stop 1
  34 end program reduction