[Bug libfortran/21881] Array descriptors limit derived type sizes

[fxcoudert at gcc dot gnu dot org]

--- Comment #4 from fxcoudert at gcc dot gnu dot org  2007-09-14 11:31 
---
I think this is related to the check in trans-types.c:

  if (size  INTEGER_CST_P (size))
{
  if (tree_int_cst_lt (gfc_max_array_element_size, size))
internal_error (Array element size too big);

  i += TREE_INT_CST_LOW (size)  GFC_DTYPE_SIZE_SHIFT;
}
  dtype = build_int_cst (gfc_array_index_type, i);

which is triggered by code such as:

  type t
integer i001(268435456)
  end type t

  type(t), allocatable :: x(:)

  allocate(x(1))
  print *, size(x)
  print *, shape(x)
  end


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21881

[Bug libfortran/21881] Array descriptors limit derived type sizes

[fxcoudert at gcc dot gnu dot org]

--- Comment #3 from fxcoudert at gcc dot gnu dot org  2007-01-05 14:12 
---
ping: Would you have either an example where this limit is encountered?
Wouldn't 4.3 be ideal for that work?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21881

[Bug libfortran/21881] Array descriptors limit derived type sizes

[fxcoudert at gcc dot gnu dot org]

--- Comment #2 from fxcoudert at gcc dot gnu dot org  2006-10-21 17:39 
---
Thomas, isn't the 4.3 branching a good time to work on this? Would you have
time for that?


-- 

fxcoudert at gcc dot gnu dot org changed:

   What|Removed |Added

 CC||fxcoudert at gcc dot gnu dot
   ||org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21881

[Bug libfortran/21881] Array descriptors limit derived type sizes

[tobi at gcc dot gnu dot org]

--- Additional Comments From tobi at gcc dot gnu dot org  2005-06-05 09:59 
---
So an array of the derived type couldn't have more than 2**(32-26) = 64 entries
before overflowing memory with our current scheme, and if this was enlarged the
allowed arrays would be even smaller, but it is certainly true that the sizes of
derived type array elements are limited.

-- 
   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever Confirmed||1
   Last reconfirmed|-00-00 00:00:00 |2005-06-05 09:59:44
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21881