2010-05-29  Richard Guenther  <rguenther@suse.de>

	* lto-streamer.c (cached_bp): New global variable.
	(bitpack_create): Return the cached bitpack, if available.
	(bitpack_delete): Clear and cache the bitpack, if appropriate.
	(bp_pack_value): Remove redundant asserts.

From-SVN: r160032