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+! { dg-do run }
+! PR 27980 - We used to allocate negative amounts of memory
+! for functions returning arrays if lbound > ubound-1.
+! Based on a test case by beliavsky@aol.com posted to
+! comp.lang.fortran.
+program xint_func
+ implicit none
+ integer, parameter :: n=3,ii(n)=(/2,0,-1/)
+ integer :: i
+ character(len=80) :: line
+ do i=1,n
+ write (line,'(10I5)') int_func(ii(i))
+ end do
+contains
+ function int_func(n) result(ivec)
+ integer, intent(in) :: n
+ integer :: ivec(n)
+ integer :: i
+ if (n > 0) then
+ forall (i=1:n) ivec(i) = i
+ end if
+ end function int_func
+end program xint_func