39 lines
1.0 KiB
Fortran
39 lines
1.0 KiB
Fortran
! { dg-do run }
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! { dg-options "-O2 -fdump-tree-original" }
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module foo
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contains
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subroutine bar(a)
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real, dimension(:,:) :: a
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a(1,:) = 0.
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end subroutine bar
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end module foo
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program test
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use foo
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implicit none
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real, dimension (2,2) :: a, d, e
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real, dimension (1,2) :: b
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real, dimension (2) :: c
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data a, d, e /12*1.0/
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data b /2*1.0/
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data c /2*1.0/
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a(1,:) = 0. ! This can't be optimized to a memset.
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b(1,:) = 0. ! This is optimized to = {}.
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c = 0. ! This is optimized to = {}.
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d(:,1) = 0. ! This can't be otimized to a memset.
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call bar(e)
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if (any(a /= reshape((/ 0.0, 1.0, 0.0, 1.0/), shape(a)))) call abort
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if (any(b /= 0.)) call abort
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if (any(c /= 0.)) call abort
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if (any(d /= reshape((/ 0.0, 0.0, 1.0, 1.0/), shape(d)))) call abort
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if (any(e /= reshape((/ 0.0, 1.0, 0.0, 1.0/), shape(e)))) call abort
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end program
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! { dg-final { scan-tree-dump-times "= {}" 2 "original" } }
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! { dg-final { cleanup-tree-dump "original" } }
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! { dg-final { cleanup-modules "foo" } }
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