[Bug debug/78212] New: Fortran allocatable strings in derived type elements debug info

["jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78212

            Bug ID: 78212
           Summary: Fortran allocatable strings in derived type elements
                    debug info
           Product: gcc
           Version: 6.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
                CC: jakub at gcc dot gnu.org, jan.kratochvil at redhat dot com,
                    unassigned at gcc dot gnu.org
        Depends on: 71906
            Blocks: 24546
  Target Milestone: ---

+++ This bug was initially created as a clone of Bug #71906 +++

For:

program pr71906
  character(len=8) :: vard
  character(len=:), allocatable :: vare
  type t
    character(len=:), allocatable :: f
  end type
  type(t) :: varf
  allocate(character(len=10) :: vare)
  allocate(character(len=9) :: varf%f)
  vare = 'foo'
  call foo (vard, vare, varf)
contains
  subroutine foo (vara, varb, varc)
    character(len=*) :: vara
    character(len=:), allocatable :: varb
    type(t) :: varc
    vara = 'bar'
    varb = 'baz'
    varc%f = 'str'
  end subroutine
end program pr71906

we still don't create usable debug info for the f field - and it is likely not
even expressible in dwarf5 right now.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24546
[Bug 24546] [meta-bug] gfortran debugging problems
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71906
[Bug 71906] [6/7 Regression] Fortran allocatable strings debug info type size
regression