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! Test a simple acc loop reduction inside a kernels region.
! { dg-do run }
! { dg-additional-options "--param=openacc-kernels=decompose" }
! { dg-additional-options "-fopt-info-all-omp" }
! { dg-additional-options "-foffload=-fopt-info-all-omp" } */
! { dg-additional-options "--param=openacc-privatization=noisy" }
! { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
! Prune a few: uninteresting, and potentially varying depending on GCC configuration (data types):
! { dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} } */
program reduction
integer, parameter :: n = 20
integer :: i, red
!TODO <https://gcc.gnu.org/PR104892>
call make_addressable (red)
red = 0
!$acc kernels ! { dg-line l_compute1 } */
! { dg-note {variable 'red\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_compute1 }
!$acc loop reduction (+:red) ! { dg-line l_loop_i1 }
! { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } l_loop_i1 }
! { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i1 }
! { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i1 }
do i = 1, n
red = red + 1
end do
!$acc end kernels
if (red .ne. n) stop 1
contains
subroutine make_addressable (v)
integer :: v ! by reference
end subroutine make_addressable
end program reduction
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