72 lines
1.9 KiB
Fortran
72 lines
1.9 KiB
Fortran
! { dg-do run }
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! Test the fix for PR38852 and PR39006 in which LBOUND did not work
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! for some arrays with negative strides.
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!
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! Contributed by Dick Hendrickson <dick.hendrickson@gmail.com>
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! Clive Page <clivegpage@googlemail.com>
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! and Mikael Morin <mikael.morin@tele2.fr>
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!
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program try_je0031
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integer ida(4)
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real dda(5,5,5,5,5)
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integer, parameter :: nx = 4, ny = 3
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interface
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SUBROUTINE PR38852(IDA,DDA,nf2,nf5,mf2)
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INTEGER IDA(4)
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REAL DDA(5,5,5,5,5)
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TARGET DDA
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END SUBROUTINE
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end interface
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integer :: array1(nx,ny), array2(nx,ny)
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data array2 / 1,2,3,4, 10,20,30,40, 100,200,300,400 /
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array1 = array2
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call PR38852(IDA,DDA,2,5,-2)
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call PR39006(array1, array2(:,ny:1:-1))
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call mikael ! http://gcc.gnu.org/ml/fortran/2009-01/msg00342.html
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contains
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subroutine PR39006(array1, array2)
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integer, intent(in) :: array1(:,:), array2(:,:)
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integer :: j
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do j = 1, ubound(array2,2)
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if (any (array1(:,j) .ne. array2(:,4-j))) call abort
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end do
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end subroutine
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end
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SUBROUTINE PR38852(IDA,DDA,nf2,nf5,mf2)
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INTEGER IDA(4)
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REAL DLA(:,:,:,:)
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REAL DDA(5,5,5,5,5)
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POINTER DLA
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TARGET DDA
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DLA => DDA(2:3, 1:3:2, 5:4:-1, NF2, NF5:NF2:MF2)
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IDA = UBOUND(DLA)
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if (any(ida /= 2)) call abort
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DLA => DDA(2:3, 1:3:2, 5:4:-1, 2, 5:2:-2)
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IDA = UBOUND(DLA)
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if (any(ida /= 2)) call abort
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!
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! These worked.
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!
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DLA => DDA(2:3, 1:3:2, 5:4:-1, 2, 5:2:-2)
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IDA = shape(DLA)
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if (any(ida /= 2)) call abort
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DLA => DDA(2:3, 1:3:2, 5:4:-1, 2, 5:2:-2)
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IDA = LBOUND(DLA)
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if (any(ida /= 1)) call abort
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END SUBROUTINE
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subroutine mikael
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implicit none
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call test (1, 3, 3)
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call test (2, 3, 3)
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call test (2, -1, 0)
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call test (1, -1, 0)
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contains
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subroutine test (a, b, expect)
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integer :: a, b, expect
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integer :: c(a:b)
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if (ubound (c, 1) .ne. expect) call abort
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end subroutine test
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end subroutine
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