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! Related to PR 19928.  Check that foo() is only called once per statement.

! { dg-do run }

program main

  implicit none

  type t

    integer, dimension (5) :: field

  end type t

  type (t), dimension (2) :: a

  integer :: calls, i, j

  forall (i = 1:2, j = 1:5) a(i)%field(j) = i * 100 + j

  calls = 0

  if (sum (a%field(foo(calls))) .ne. 304) call abort

  if (calls .ne. 1) call abort

  if (sum (a(foo(calls))%field) .ne. 1015) call abort

  if (calls .ne. 2) call abort

contains

  function foo (calls)

    integer :: calls, foo

    calls = calls + 1

    foo = 2

  end function foo

end program main