* config/avr/avr-protos.h (output_reload_inhi): Change prototype.
	* config/avr/avr.md (adjust_len): Add "reload_in16" alternative.
	(*reload_inhi): Use it.  Adapt call to output_reload_inhi to new
	prototype.
	(*movhi): Split constraint alternative "r,rL" into "r,r" and "r,L".
	* config/avr/avr.c: Rename output_reload_insisf_1 to
	output_reload_in_const.
	(avr_popcount_each_byte): Handle SFmode, too.
	(output_reload_in_const): Change so it can handle HI loads, too.
	Use avr_popcount_each_byte to work out if scratch register must be
	created on the fly.
	(output_reload_inhi): Rewrite using output_reload_in_const and...
	(output_movhi): ...use it to print constants' loads.
	(adjust_insn_length): New case ADJUST_LEN_RELOAD_IN16. Cleanup code.

From-SVN: r179181