libgomp/testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-3.f90

   1 ! Test of gang-private variables declared on loop directive, with broadcasting
   2 ! to partitioned vectors.
   3
   4 ! { dg-do run }
   5
   6 ! { dg-additional-options "--param=openacc-kernels=decompose" }
   7
   8 ! { dg-additional-options "-fopt-info-omp-all" }
   9 ! { dg-additional-options "-foffload=-fopt-info-omp-all" }
  10
  11 ! { dg-additional-options "--param=openacc-privatization=noisy" }
  12 ! { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
  13 ! Prune a few: uninteresting:
  14 ! { dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} }
  15
  16 ! It's only with Tcl 8.5 (released in 2007) that "the variable 'varName'
  17 ! passed to 'incr' may be unset, and in that case, it will be set to [...]",
  18 ! so to maintain compatibility with earlier Tcl releases, we manually
  19 ! initialize counter variables:
  20 ! { dg-line l_dummy[variable c_compute 0 c_loop_i 0 c_loop_j 0 c_loop_k 0] }
  21 ! { dg-message "dummy" "" { target iN-VAl-Id } l_dummy } to avoid
  22 ! "WARNING: dg-line var l_dummy defined, but not used".
  23
  24 program main
  25   integer :: x, i, j, arr(0:32*32)
  26
  27   do i = 0, 32*32-1
  28      arr(i) = i
  29   end do
  30
  31   !$acc kernels copy(arr)
  32   ! { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } .+1 }
  33   !$acc loop gang(num:32) private(x) ! { dg-line l_loop_i[incr c_loop_i] }
  34   ! { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i }
  35   ! { dg-note {variable 'x' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i }
  36   do i = 0, 31
  37      x = i * 2;
  38
  39      !$acc loop vector(length:32) ! { dg-line l_loop_j[incr c_loop_j] }
  40      ! { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j }
  41      do j = 0, 31
  42         arr(i * 32 + j) = arr(i * 32 + j) + x;
  43      end do
  44   end do
  45   ! { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i$c_loop_i }
  46   !$acc end kernels
  47
  48   do i = 0, 32 * 32 - 1
  49      if (arr(i) .ne. i + (i / 32) * 2) stop 1
  50   end do
  51 end program main