2009-07-22  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/37488
	* ira-lives.c (bb_has_abnormal_call_pred): New function.
	(process_bb_node_lives): Use it.

	* ira.c (setup_cover_and_important_classes): Don't setup
	ira_important_class_nums.  Add cover classes to the end of
	important classes.
	(cover_class_order, comp_reg_classes_func,
	reorder_important_classes): New.
	(find_reg_class_closure): Use reorder_important_classes.

	* config/i386/i386.h (IRA_COVER_CLASSES): Remove.

	* config/i386/i386.c (i386_ira_cover_classes): New function.
	(TARGET_IRA_COVER_CLASSES): Redefine.

	* doc/tm.texi (TARGET_IRA_COVER_CLASSES): Add a comment about
	importance of order of cover classes in the array.

From-SVN: r149962