34 lines
1.0 KiB
Fortran
34 lines
1.0 KiB
Fortran
! { dg-do run }
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! PR fortran/35681
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! Check that dependencies of MVBITS arguments are resolved correctly by using
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! temporaries if both arguments refer to the same variable.
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integer, dimension(10) :: ila1 = (/1,2,3,4,5,6,7,8,9,10/)
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integer, dimension(20) :: ila2
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integer, dimension(10), target :: ila3
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integer, pointer :: ila3_ptr(:)
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integer, parameter :: SHOULD_BE(10) = (/17,18,11,4,13,22,7,16,9,18/)
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integer, parameter :: INDEX_VECTOR(10) = (/9,9,6,2,4,9,2,9,6,10/)
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ila2(2:20:2) = ila1
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ila3 = ila1
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! Argument is already packed.
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call mvbits (ila1(INDEX_VECTOR), 2, 4, ila1, 3)
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write (*,'(10(I3))') ila1
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if (any (ila1 /= SHOULD_BE)) call abort ()
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! Argument is not packed.
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call mvbits (ila2(2*INDEX_VECTOR), 2, 4, ila2(2:20:2), 3)
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write (*,'(10(I3))') ila2(2:20:2)
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if (any (ila2(2:20:2) /= SHOULD_BE)) call abort ()
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! Pointer and target
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ila3_ptr => ila3
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call mvbits (ila3(INDEX_VECTOR), 2, 4, ila3_ptr, 3)
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write (*,'(10(I3))') ila3
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if (any (ila3 /= SHOULD_BE)) call abort ()
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end
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