http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51073

--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-11-10 
10:01:36 UTC ---
I think the size == 0 issue can only happen for static ("save") coarrays such
as 
  integer, save :: caf(1:0)[*]
  print *, size(caf)
  end
For allocatable coarrays, one always allocates at least a single byte.

Thus, it should be done in the front end for performance reasons (size is known
at the compile time and it is a rather special case).

Regarding the RTEMS failures: I somehow doubt that they are related to this
issue. I think there should be no size-zero test case for coarrays.

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