gcc/libgomp/testsuite/libgomp.oacc-fortran/kernels-private-vars-loop-gang-6.f90

! Test of gang-private addressable variable declared on loop directive, with
! broadcasting to partitioned workers.

! { dg-do run }

! { dg-additional-options "--param=openacc-kernels=decompose" }

! { dg-additional-options "-fopt-info-omp-all" }
! { dg-additional-options "-foffload=-fopt-info-omp-all" }

! { dg-additional-options "--param=openacc-privatization=noisy" }
! { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
! Prune a few: uninteresting:
! { dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} }

! It's only with Tcl 8.5 (released in 2007) that "the variable 'varName'
! passed to 'incr' may be unset, and in that case, it will be set to [...]",
! so to maintain compatibility with earlier Tcl releases, we manually
! initialize counter variables:
! { dg-line l_dummy[variable c_compute 0 c_loop_i 0 c_loop_j 0 c_loop_k 0] }
! { dg-message "dummy" "" { target iN-VAl-Id } l_dummy } to avoid
! "WARNING: dg-line var l_dummy defined, but not used".

program main
  type vec3
     integer x, y, z, attr(13)
  end type vec3

  integer x, i, j, arr(0:32*32)
  type(vec3) pt
  
  do i = 0, 32*32-1
     arr(i) = i
  end do

  !$acc kernels copy(arr)
  ! { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } .+1 }
  !$acc loop gang(num:32) private(pt) ! { dg-line l_loop_i[incr c_loop_i] }
  ! { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i }
  ! { dg-note {variable 'pt' in 'private' clause is candidate for adjusting OpenACC privatization level} {} { target *-*-* } l_loop_i$c_loop_i }
  do i = 0, 31
     pt%x = i
     pt%y = i * 2
     pt%z = i * 4
     pt%attr(5) = i * 6

     !$acc loop vector(length:32) ! { dg-line l_loop_j[incr c_loop_j] }
     ! { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j }
     do j = 0, 31
        arr(i * 32 + j) = arr(i * 32 + j) + pt%x + pt%y + pt%z + pt%attr(5);
     end do
  end do
  ! { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i$c_loop_i }
  !$acc end kernels

  do i = 0, 32 * 32 - 1
     if (arr(i) .ne. i + (i / 32) * 13) stop 1
  end do
end program main