2008-11-25  Vladimir Makarov  <vmakarov@redhat.com>

	* doc/invoke.texi (ira-max-loops-num): Change semantics.

	* ira-int.h (struct ira_loop_tree_node): New member to_remove_p.

	* ira-color.c (allocno_spill_priority): New function.
	(remove_allocno_from_bucket_and_push, push_allocno_to_spill):
	Print more info about the spilled allocno.
	(push_allocnos_to_stack): Use allocno_spill_priority.  Add more
	checks on bad spill.

	* ira-build.c (loop_node_to_be_removed_p): Remove.
	(loop_compare_func, mark_loops_for_removal): New functions.
	(remove_uneccesary_loop_nodes_from_loop_t): Use member
	to_remove_p.
	(remove_unnecessary_allocnos): Call mark_loops_for_removal.

	* ira.c (ira): Don't change flag_ira_algorithm.

	* params.def (ira-max-loops-num): Change the value.

From-SVN: r142207