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71 lines
1.8 KiB
Fortran
71 lines
1.8 KiB
Fortran
! Exercise nested function decomposition, gcc/tree-nested.c.
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! { dg-do run }
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program collapse2
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call test1
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call test2
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contains
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subroutine test1
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integer :: i, j, k, a(1:3, 4:6, 5:7)
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logical :: l
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l = .false.
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a(:, :, :) = 0
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!$acc parallel reduction (.or.:l)
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!$acc loop worker vector collapse(4 - 1)
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do 164 i = 1, 3
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do 164 j = 4, 6
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do 164 k = 5, 7
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a(i, j, k) = i + j + k
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164 end do
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!$acc loop worker vector reduction(.or.:l) collapse(2)
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firstdo: do i = 1, 3
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do j = 4, 6
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do k = 5, 7
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if (a(i, j, k) .ne. (i + j + k)) l = .true.
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end do
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end do
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end do firstdo
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!$acc end parallel
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if (l) call abort
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end subroutine test1
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subroutine test2
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integer :: a(3,3,3), k, kk, kkk, l, ll, lll
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a = 0
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!$acc parallel
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! Use "gang(static:1)" here and below to effectively turn gang-redundant
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! execution mode into something like gang-single.
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!$acc loop gang(static:1) collapse(1)
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do 115 k=1,3
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!$acc loop collapse(2)
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dokk: do kk=1,3
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do kkk=1,3
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a(k,kk,kkk) = 1
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enddo
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enddo dokk
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115 continue
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!$acc loop gang(static:1) collapse(1)
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do k=1,3
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if (any(a(k,1:3,1:3).ne.1)) call abort
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enddo
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! Use "gang(static:1)" here and below to effectively turn gang-redundant
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! execution mode into something like gang-single.
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!$acc loop gang(static:1) collapse(1)
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dol: do 120 l=1,3
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!$acc loop collapse(2)
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doll: do ll=1,3
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do lll=1,3
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a(l,ll,lll) = 2
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enddo
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enddo doll
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120 end do dol
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!$acc loop gang(static:1) collapse(1)
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do l=1,3
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if (any(a(l,1:3,1:3).ne.2)) call abort
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enddo
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!$acc end parallel
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end subroutine test2
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end program collapse2
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