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! { dg-do compile }
! { dg-options "-fdump-tree-original" }
!
! PR fortran/37626
! Contributed by Rich Townsend
!
! The problem was an ICE when trying to deallocate the
! result variable "x_unique".
!
function unique_A (x, sorted) result (x_unique)
implicit none
character(*), dimension(:), intent(in) :: x
logical, intent(in), optional :: sorted
character(LEN(x)), dimension(:), allocatable :: x_unique
logical :: sorted_
character(LEN(x)), dimension(SIZE(x)) :: x_sorted
integer :: n_x
logical, dimension(SIZE(x)) :: mask
integer, external :: b3ss_index
! Set up sorted_
if(PRESENT(sorted)) then
sorted_ = sorted
else
sorted_ = .FALSE.
endif
! If necessary, sort x
if(sorted_) then
x_sorted = x
else
x_sorted = x(b3ss_index(x))
endif
! Set up the unique array
n_x = SIZE(x)
mask = (/.TRUE.,x_sorted(2:n_x) /= x_sorted(1:n_x-1)/)
allocate(x_unique(COUNT(mask)))
x_unique = PACK(x_sorted, MASK=mask)
! Finish
return
end function unique_A
! { dg-final { scan-tree-dump-times "__builtin_free" 5 "original" } }
! { dg-final { cleanup-tree-dump "original" } }
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