2007-03-09  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-structalias.c (variable_info): Remove
	finished_solution.
	(new_var_info): Ditto.
	(shared_bitmap_info_t): New structure.
	(shared_bitmap_table): New variable.
	(shared_bitmap_hash): New function.
	(shared_bitmap_eq): Ditto
	(shared_bitmap_lookup): Ditto.
	(shared_bitmap_add): Ditto.
	(merge_smts_into): Change to take bitmap directly.
	(find_what_p_points_to): Rewrite to use shared bitmap hashtable.
	(init_alias_vars): Init shared bitmap hashtable.
	(delete_points_to_sets): Delete shared bitmap hashtable.
	* tree-ssa-operands.c (add_virtual_operand): Partially revert the
	is_aliased removal as a change that was still necessary was
	deleted.

From-SVN: r122741