2012-09-04  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-pre.c (value_expressions): Make it a vector of
	bitmaps containing expression IDs.
	(add_to_value): Adjust.
	(sorted_array_from_bitmap_set): Likewise.
	(bitmap_set_replace_value): Likewise.
	(print_value_expressions): Likewise.
	(get_constant_for_value_id): Likewise.
	(get_representative_for): Likewise.
	(phi_translate_1): Likewise.
	(bitmap_find_leader): Likewise.
	(find_or_generate_expression): Likewise.
	(do_regular_insertion): Likewise.
	(init_pre): Likewise.
	(fini_pre): Likewise.

From-SVN: r190938