gcc/testsuite/gfortran.dg/use_22.f90

   1 ! { dg-do compile }
   2 !
   3 ! PR fortran/55827
   4 ! gfortran used to ICE with the call to `tostring' depending on how the
   5 ! `tostring' symbol was USE-associated.
   6 !
   7 ! Contributed by Lorenz Hüdepohl <bugs@stellardeath.org>
   8
   9 module stringutils
  10   interface
  11     pure function strlen(handle) result(len)
  12       integer, intent(in) :: handle
  13       integer :: len
  14     end function
  15   end interface
  16 end module
  17 module intermediate ! does not die if this module is merged with stringutils
  18   contains
  19   function tostring(handle) result(string)
  20     use stringutils
  21     integer, intent(in) :: handle
  22     character(len=strlen(handle)) :: string
  23   end function
  24 end module
  25 module usage
  26   contains
  27   subroutine dies_here(handle)
  28     use stringutils ! does not die if this unnecessary line is omitted or placed after "use intermediate"
  29     use intermediate
  30     integer :: handle
  31     write(*,*) tostring(handle) ! ICE
  32   end subroutine
  33 end module
  34
  35