2011-05-27 Diego Novillo <dnovillo@google.com>

2011-05-27  Diego Novillo  <dnovillo@google.com>

	* pph-streamer.h (enum pph_record_marker): Define.
	Replace all users of PPH_RECORD_START and PPH_RECORD_END to
	use the new enum type.
	* pph-streamer-in.c (pph_stream_read_shared_data): New.
	(pph_stream_register_shared_data): New.
	(ALLOC_AND_REGISTER): Define.
	(pph_start_record): Add argument CACHE_IX.  Update all users.
	(pph_stream_read_ld_base): Do not call pph_start_record.
	(pph_stream_read_ld_min): Likewise.
	(pph_stream_read_cxx_binding_1): Handle PPH_RECORD_SHARED values
	returned from pph_start_record.
	Call pph_stream_register_shared_data.
	(pph_stream_read_cxx_binding): Do not call pph_start_record.
	Handle NULL values returned from pph_stream_read_cxx_binding_1.
	(pph_stream_read_class_binding): Handle PPH_RECORD_SHARED
	values returned from pph_start_record.
	Call pph_stream_register_shared_data.
	(pph_stream_read_label_binding): Likewise.
	(pph_stream_read_binding_level): Likewise.
	(pph_stream_read_c_language_function): Likewise.
	(pph_stream_read_language_function): Likewise.
	(pph_stream_read_ld_fn): Do not call pph_start_record.
	(pph_stream_read_ld_ns): Likewise.
	(pph_stream_read_lang_type_header): Likewise.
	(pph_stream_read_lang_type_class): Likewise.
	(pph_stream_read_lang_type_ptrmem): Likewise.
	(pph_stream_read_lang_specific): Handle PPH_RECORD_SHARED
	values returned from pph_start_record.
	(pph_stream_read_lang_type_class): Likewise.
	(pph_stream_read_lang_type_ptrmem): Likewise.
	(pph_stream_read_lang_type): Likewise.
	(pph_stream_read_sorted_fields_type): Likewise.
	Call pph_stream_register_shared_data.
	(pph_stream_read_lang_type): Remove TYPE argument.
	Return a pointer to the newly materialized struct lang_type.
	Update all users.
	Support shared struct lang_type nodes.
	* pph-streamer-out.c (pph_start_record): Call pph_stream_cache_add.
	(pph_stream_write_ld_base): Do not call pph_start_record.
	(pph_stream_write_ld_min): Likewise.
	(pph_stream_write_cxx_binding): Likewise.
	Handle the case when CB is NULL.
	(pph_stream_write_ld_fn): Do not call pph_start_record.
	(pph_stream_write_ld_ns): Likewise.
	(pph_stream_write_ld_parm): Likewise.
	(pph_stream_write_lang_type_header): Likewise.
	(pph_stream_write_lang_type_ptrmem): Likewise.
	* pph-streamer.c (pph_stream_open): Initialize stream->cache.v and
	stream->cache.m.
	(pph_stream_close): Free stream->cache.v, stream->cache.m and stream.
	(pph_stream_cache_insert_at): New.
	(pph_stream_cache_add): New.
	(pph_stream_cache_get): New.
	* pph-streamer.h (pph_stream_pickle_cache): Define.
	(pph_stream): Add field 'cache'.
	(pph_stream_cache_insert_at): Declare.
	(pph_stream_cache_add): Declare.
	(pph_stream_cache_get): Declare.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/pph@174345 138bc75d-0d04-0410-961f-82ee72b054a4