re PR target/50566 ([avr]: Add support for better logging similar to -mdeb)

re PR target/50566 ([avr]: Add support for better logging similar to -mdeb)

	PR target/50566
	* config/avr/avr-log.c (avr_log_vadump): Use %b to print bool.
	* config/avr/avr.c (avr_rtx_costs_1): New static function, renamed
	from avr_rtx_costs.
	(avr_legitimate_address_p): Use avr_edump to print log information
	filtered by avr_log.
	(extra_constraint_Q): Ditto.
	(avr_legitimize_address): Ditto.
	(avr_rtx_costs): Ditto.  Rewrite as wrapper for avr_rtx_costs_1.
	(final_prescan_insn): Use avr_log.rtx_costs as filter.

From-SVN: r179359