[Bug fortran/31163] SAVEd derived types with ALLOCATABLE components don't work

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

------- Comment #2 from burnus at gcc dot gnu dot org  2007-03-13 14:33 -------
Andrew wrote:
--------------------------------------------------
it is obvious from the tree dump, what is going on:
 static struct foo_type f_a = {};

 f_a.mv.data = 0B;

So save is done correctly but allocatables in the derived type is not.
Even at the end of the function:
{
   int4 D.965;

   _gfortran_deallocate (f_a.mv.data, &D.965);
   f_a.mv.data = 0B;
 }

So it deallocates it.
-------------------------

And I wrote:
-------------------------
It seems to be related to allocatable
components as  if I change them to pointers (incl. =>NULL initialization
and allocated -> associated), it works.

Pointer:
  static struct foo_type f_a = {.mv={.data=0B}};

Allocatable:
  static struct foo_type f_a = {};
  f_a.mv.data = 0B;

That is: The 0B initialization happens always.


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |burnus at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |wrong-code
   Last reconfirmed|0000-00-00 00:00:00         |2007-03-13 14:33:24
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31163