* bt-load.c (btr_def_s): New member own_end;
	(add_btr_to_live_range): Add second parameter.  Changed caller.
	(clear_btr_from_live_range): Clear btrs_live_at_end bit
	for the register its definition basic block if own_end is set.
	(augment_live_range): Also take btrs_live_at_end into account.
	(combine_btr_defs): Don't bother with
	other_def->other_btr_uses_after_use if it pertains to a different
	register.
	(move_btr_def): Set def->other_btr_uses_before_def after
	calling combine_btr_defs."

	* bt-load.c (augment_live_range): New argument full_range.
	Changed all callers.

	* bt-load.c (move_tr_def): Set other_tr_uses_before_def
	taking new btr assignment into account.

From-SVN: r91780