gcc/testsuite/gfortran.dg/unlimited_polymorphic_23.f90

   1 ! { dg-do run }
   2 !
   3 ! Test the fix for PR65024, in which the structure for the 'info'
   4 ! component of type 'T' was not being converted into TREE_SSA and
   5 ! so caused an ICE in trans-expr.c:gfc_conv_component_ref.
   6 !
   7 ! Reported by  <matt@gneilson.plus.com>
   8 !
   9 MODULE X
  10   TYPE T
  11     CLASS(*), pointer :: info
  12   END TYPE
  13 END MODULE
  14
  15 PROGRAM P
  16   call bug
  17 CONTAINS
  18   SUBROUTINE BUG
  19     USE X
  20     CLASS(T), pointer :: e
  21     integer, target :: i = 42
  22     allocate(e)
  23     e%info => NULL ()      ! used to ICE
  24     if (.not.associated(e%info)) e%info => i      ! used to ICE
  25     select type (z => e%info)
  26       type is (integer)
  27         if (z .ne.i) STOP 1
  28     end select
  29   END SUBROUTINE
  30
  31   SUBROUTINE NEXT
  32     USE X
  33     CLASS (T), pointer :: e
  34   END SUBROUTINE
  35 END