gcc/testsuite/gfortran.dg/allocatable_function_4.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-fdump-tree-original" }
   3 !
   4 ! PR fortran/37626
   5 ! Contributed by Rich Townsend
   6 !
   7 ! The problem was an ICE when trying to deallocate the
   8 ! result variable "x_unique".
   9 !
  10 function unique_A (x, sorted) result (x_unique)
  11   implicit none
  12   character(*), dimension(:), intent(in)       :: x
  13   logical, intent(in), optional                :: sorted
  14   character(LEN(x)), dimension(:), allocatable :: x_unique
  15
  16   logical                                      :: sorted_
  17   character(LEN(x)), dimension(SIZE(x))        :: x_sorted
  18   integer                                      :: n_x
  19   logical, dimension(SIZE(x))                  :: mask
  20
  21   integer, external                            :: b3ss_index
  22
  23 ! Set up sorted_
  24
  25   if(PRESENT(sorted)) then
  26      sorted_ = sorted
  27   else
  28      sorted_ = .FALSE.
  29   endif
  30
  31 ! If necessary, sort x
  32
  33   if(sorted_) then
  34      x_sorted = x
  35   else
  36      x_sorted = x(b3ss_index(x))
  37   endif
  38
  39 ! Set up the unique array
  40
  41   n_x = SIZE(x)
  42
  43   mask = (/.TRUE.,x_sorted(2:n_x) /= x_sorted(1:n_x-1)/)
  44
  45   allocate(x_unique(COUNT(mask)))
  46
  47   x_unique = PACK(x_sorted, MASK=mask)
  48
  49 ! Finish
  50
  51   return
  52 end function unique_A
  53
  54 ! { dg-final { scan-tree-dump-times "__builtin_free" 5 "original" } }
  55