blob: 95c3ed7ee9c0a121fb8b6ce9f01e018f2f0ed98f [file] [log] [blame]
! { dg-do run }
! { dg-additional-options "-Wopenacc-parallelism" } for testing/documenting
! aspects of that functionality.
! Integer reductions
program reduction_1
implicit none
integer, parameter :: n = 10, ng = 8, nw = 4, vl = 32
integer :: i, vresult, rg, rw, rv, rc
logical :: lrg, lrw, lrv, lrc, lvresult
integer, dimension (n) :: array
do i = 1, n
array(i) = i
end do
!
! '+' reductions
!
rg = 0
rw = 0
rv = 0
rc = 0
vresult = 0
!$acc parallel num_gangs(ng) copy(rg)
!$acc loop reduction(+:rg) gang
do i = 1, n
rg = rg + array(i)
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(rw)
!$acc loop reduction(+:rw) worker
do i = 1, n
rw = rw + array(i)
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(rv)
!$acc loop reduction(+:rv) vector
do i = 1, n
rv = rv + array(i)
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(rc)
!$acc loop reduction(+:rc) gang worker vector
do i = 1, n
rc = rc + array(i)
end do
!$acc end parallel
! Verify the results
do i = 1, n
vresult = vresult + array(i)
end do
if (rg .ne. vresult) STOP 1
if (rw .ne. vresult) STOP 2
if (rv .ne. vresult) STOP 3
if (rc .ne. vresult) STOP 4
!
! '*' reductions
!
rg = 1
rw = 1
rv = 1
rc = 1
vresult = 1
!$acc parallel num_gangs(ng) copy(rg)
!$acc loop reduction(*:rg) gang
do i = 1, n
rg = rg * array(i)
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(rw)
!$acc loop reduction(*:rw) worker
do i = 1, n
rw = rw * array(i)
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(rv)
!$acc loop reduction(*:rv) vector
do i = 1, n
rv = rv * array(i)
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(rc)
!$acc loop reduction(*:rc) gang worker vector
do i = 1, n
rc = rc * array(i)
end do
!$acc end parallel
! Verify the results
do i = 1, n
vresult = vresult * array(i)
end do
if (rg .ne. vresult) STOP 5
if (rw .ne. vresult) STOP 6
if (rv .ne. vresult) STOP 7
if (rc .ne. vresult) STOP 8
!
! 'max' reductions
!
rg = 0
rw = 0
rv = 0
rc = 0
vresult = 0
!$acc parallel num_gangs(ng) copy(rg)
!$acc loop reduction(max:rg) gang
do i = 1, n
rg = max (rg, array(i))
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(rw)
!$acc loop reduction(max:rw) worker
do i = 1, n
rw = max (rw, array(i))
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(rv)
!$acc loop reduction(max:rv) vector
do i = 1, n
rv = max (rv, array(i))
end do
!$acc end parallel
!$acc parallel num_gangs(ng) Num_workers(nw) vector_length(vl) copy(rc)
!$acc loop reduction(max:rc) gang worker vector
do i = 1, n
rc = max (rc, array(i))
end do
!$acc end parallel
! Verify the results
do i = 1, n
vresult = max (vresult, array(i))
end do
if (rg .ne. vresult) STOP 9
if (rw .ne. vresult) STOP 10
if (rv .ne. vresult) STOP 11
if (rc .ne. vresult) STOP 12
!
! 'min' reductions
!
rg = 0
rw = 0
rv = 0
rc = 0
vresult = 0
!$acc parallel num_gangs(ng) copy(rg)
!$acc loop reduction(min:rg) gang
do i = 1, n
rg = min (rg, array(i))
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(rw)
!$acc loop reduction(min:rw) worker
do i = 1, n
rw = min (rw, array(i))
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(rv)
!$acc loop reduction(min:rv) vector
do i = 1, n
rv = min (rv, array(i))
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(rc)
!$acc loop reduction(min:rc) gang worker vector
do i = 1, n
rc = min (rc, array(i))
end do
!$acc end parallel
! Verify the results
do i = 1, n
vresult = min (vresult, array(i))
end do
if (rg .ne. vresult) STOP 13
if (rw .ne. vresult) STOP 14
if (rv .ne. vresult) STOP 15
if (rc .ne. vresult) STOP 16
!
! 'iand' reductions
!
rg = 1
rw = 1
rv = 1
rc = 1
vresult = 1
!$acc parallel num_gangs(ng) copy(rg)
!$acc loop reduction(iand:rg) gang
do i = 1, n
rg = iand (rg, array(i))
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(rw)
!$acc loop reduction(iand:rw) worker
do i = 1, n
rw = iand (rw, array(i))
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(rv)
!$acc loop reduction(iand:rv) vector
do i = 1, n
rv = iand (rv, array(i))
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(rc)
!$acc loop reduction(iand:rc) gang worker vector
do i = 1, n
rc = iand (rc, array(i))
end do
!$acc end parallel
! Verify the results
do i = 1, n
vresult = iand (vresult, array(i))
end do
if (rg .ne. vresult) STOP 17
if (rw .ne. vresult) STOP 18
if (rv .ne. vresult) STOP 19
if (rc .ne. vresult) STOP 20
!
! 'ior' reductions
!
rg = 0
rw = 0
rv = 0
rc = 0
vresult = 0
!$acc parallel num_gangs(ng) copy(rg)
!$acc loop reduction(ior:rg) gang
do i = 1, n
rg = ior (rg, array(i))
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(rw)
!$acc loop reduction(ior:rw) worker
do i = 1, n
rw = ior (rw, array(i))
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(rv)
! { dg-warning "region is vector partitioned but does not contain vector partitioned code" "" { target *-*-* } .-1 }
!$acc loop reduction(ior:rv) gang
do i = 1, n
rv = ior (rv, array(i))
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(rc)
!$acc loop reduction(ior:rc) gang worker vector
do i = 1, n
rc = ior (rc, array(i))
end do
!$acc end parallel
! Verify the results
do i = 1, n
vresult = ior (vresult, array(i))
end do
if (rg .ne. vresult) STOP 21
if (rw .ne. vresult) STOP 22
if (rv .ne. vresult) STOP 23
if (rc .ne. vresult) STOP 24
!
! 'ieor' reductions
!
rg = 0
rw = 0
rv = 0
rc = 0
vresult = 0
!$acc parallel num_gangs(ng) copy(rg)
!$acc loop reduction(ieor:rg) gang
do i = 1, n
rg = ieor (rg, array(i))
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(rw)
!$acc loop reduction(ieor:rw) worker
do i = 1, n
rw = ieor (rw, array(i))
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(rv)
!$acc loop reduction(ieor:rv) vector
do i = 1, n
rv = ieor (rv, array(i))
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(rc)
!$acc loop reduction(ieor:rc) gang worker vector
do i = 1, n
rc = ieor (rc, array(i))
end do
!$acc end parallel
! Verify the results
do i = 1, n
vresult = ieor (vresult, array(i))
end do
if (rg .ne. vresult) STOP 25
if (rw .ne. vresult) STOP 26
if (rv .ne. vresult) STOP 27
if (rc .ne. vresult) STOP 28
!
! '.and.' reductions
!
lrg = .true.
lrw = .true.
lrv = .true.
lrc = .true.
lvresult = .true.
!$acc parallel num_gangs(ng) copy(lrg)
!$acc loop reduction(.and.:lrg) gang
do i = 1, n
lrg = lrg .and. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(lrw)
!$acc loop reduction(.and.:lrw) worker
do i = 1, n
lrw = lrw .and. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(lrv)
!$acc loop reduction(.and.:lrv) vector
do i = 1, n
lrv = lrv .and. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(lrc)
!$acc loop reduction(.and.:lrc) gang worker vector
do i = 1, n
lrc = lrc .and. (array(i) .ge. 5)
end do
!$acc end parallel
! Verify the results
do i = 1, n
lvresult = lvresult .and. (array(i) .ge. 5)
end do
if (lrg .neqv. lvresult) STOP 29
if (lrw .neqv. lvresult) STOP 30
if (lrv .neqv. lvresult) STOP 31
if (lrc .neqv. lvresult) STOP 32
!
! '.or.' reductions
!
lrg = .true.
lrw = .true.
lrv = .true.
lrc = .true.
lvresult = .false.
!$acc parallel num_gangs(ng) copy(lrg)
!$acc loop reduction(.or.:lrg) gang
do i = 1, n
lrg = lrg .or. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(lrw)
!$acc loop reduction(.or.:lrw) worker
do i = 1, n
lrw = lrw .or. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(lrv)
!$acc loop reduction(.or.:lrv) vector
do i = 1, n
lrv = lrv .or. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(lrc)
!$acc loop reduction(.or.:lrc) gang worker vector
do i = 1, n
lrc = lrc .or. (array(i) .ge. 5)
end do
!$acc end parallel
! Verify the results
do i = 1, n
lvresult = lvresult .or. (array(i) .ge. 5)
end do
if (lrg .neqv. lvresult) STOP 33
if (lrw .neqv. lvresult) STOP 34
if (lrv .neqv. lvresult) STOP 35
if (lrc .neqv. lvresult) STOP 36
!
! '.eqv.' reductions
!
lrg = .true.
lrw = .true.
lrv = .true.
lrc = .true.
lvresult = .true.
!$acc parallel num_gangs(ng) copy(lrg)
!$acc loop reduction(.eqv.:lrg) gang
do i = 1, n
lrg = lrg .eqv. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(lrw)
!$acc loop reduction(.eqv.:lrw) worker
do i = 1, n
lrw = lrw .eqv. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(lrv)
!$acc loop reduction(.eqv.:lrv) vector
do i = 1, n
lrv = lrv .eqv. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel num_workers(nw) vector_length(vl) copy(lrc)
!$acc loop reduction(.eqv.:lrc) gang worker vector
do i = 1, n
lrc = lrc .eqv. (array(i) .ge. 5)
end do
!$acc end parallel
! Verify the results
do i = 1, n
lvresult = lvresult .eqv. (array(i) .ge. 5)
end do
if (lrg .neqv. lvresult) STOP 37
if (lrw .neqv. lvresult) STOP 38
if (lrv .neqv. lvresult) STOP 39
if (lrc .neqv. lvresult) STOP 40
!
! '.neqv.' reductions
!
lrg = .true.
lrw = .true.
lrv = .true.
lrc = .true.
lvresult = .true.
!$acc parallel num_gangs(ng) copy(lrg)
!$acc loop reduction(.neqv.:lrg) gang
do i = 1, n
lrg = lrg .neqv. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel num_workers(nw) copy(lrw)
!$acc loop reduction(.neqv.:lrw) worker
do i = 1, n
lrw = lrw .neqv. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel vector_length(vl) copy(lrv)
!$acc loop reduction(.neqv.:lrv) vector
do i = 1, n
lrv = lrv .neqv. (array(i) .ge. 5)
end do
!$acc end parallel
!$acc parallel num_gangs(ng) num_workers(nw) vector_length(vl) copy(lrc)
!$acc loop reduction(.neqv.:lrc) gang worker vector
do i = 1, n
lrc = lrc .neqv. (array(i) .ge. 5)
end do
!$acc end parallel
! Verify the results
do i = 1, n
lvresult = lvresult .neqv. (array(i) .ge. 5)
end do
if (lrg .neqv. lvresult) STOP 41
if (lrw .neqv. lvresult) STOP 42
if (lrv .neqv. lvresult) STOP 43
if (lrc .neqv. lvresult) STOP 44
end program reduction_1