------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-15
06:00 -------
>From the reduced testcase in that PR, we get the following for the constructor
>(which is wrong):
{.bandD.636=2, .the_commandD.637=0, ._parentD.648={.bandD.640=2},
.tc_sccD.652=66}
The problem comes from:
gnu_type = make_node (possibly_overlapping_fields
? UNION_TYPE : RECORD_TYPE);
in decl.c:2627
Note that _parent overlaps with the stuff before it.
What needs to happen is we need to create a better type for this unless unions
are aloud to have more
than one initializer.
It looks like we should be instead of using an UNION but access the type as a
subfield (like the C++
front-end) and also when taking the address for the parent's type do:
"&a._parent".
This is a front-end bug. Fixing this one the way I recommend will also fix PR
19408 at the same time.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19900
