[gcc libcc1] build_qualified_type for self-referencing/incomplete types

[Jan Kratochvil]

On Fri, 24 Apr 2015 00:06:46 +0200, Jeff Law wrote:
> On 04/18/2015 04:19 AM, Jan Kratochvil wrote:
> > Instead of current:
> > 	plugin_build_record_type:
> > 		record_type = make_node (RECORD_TYPE)
> > 	plugin_build_add_field:
> > 		add fields to record_type... But there is no qualified_record_type here!
> > 	plugin_finish_record_or_union:
> > 		TYPE_SIZE (record_type) etc. ... to finish the type
> > 	plugin_build_qualified_type:
> > 		qualified_record_type = build_qualified_type (record_type, ...)
[...]
> I'm a bit surprised the former didn't work,

build_qualified_type() will make a copy of the type being created.  While the
original type gets finished later (added more fields and its final TYPE_SIZE)
the copy remains unfinished forever and GCC later crashes trying to access the
unfinished copy.


> but if the latter is working consistently, then I'd stick with it.

Yes, it is solved now.


Jan