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! { dg-do run }

! PR 45777 - component ref aliases when both are pointers

module m1

  type t1

     integer, dimension(:), allocatable :: data

  end type t1

contains

  subroutine s1(t,d)

    integer, dimension(:), pointer :: d

    type(t1), pointer :: t

    d(1:5)=t%data(3:7)

  end subroutine s1

  subroutine s2(d,t)

    integer, dimension(:), pointer :: d

    type(t1), pointer :: t

    t%data(3:7) = d(1:5)

  end subroutine s2

end module m1

program main

  use m1

  type(t1), pointer :: t

  integer, dimension(:), pointer :: d

  allocate(t)

  allocate(t%data(10))

  t%data=(/(i,i=1,10)/)

  d=>t%data(5:9)

  call s1(t,d)

  if (any(d.ne.(/3,4,5,6,7/))) call abort()

  t%data=(/(i,i=1,10)/)

  d=>t%data(1:5)

  call s2(d,t)

  if (any(t%data.ne.(/1,2,1,2,3,4,5,8,9,10/))) call abort

  deallocate(t%data)

  deallocate(t)

end program main

! { dg-final { cleanup-modules "m1" } }