Some patterns for moving one bit around by BST + BLD.

Some patterns for moving one bit around by BST + BLD.

	* config/avr/avr.md (any_extract, any_shiftrt): New code iterators.
	(*insv.extract, *insv.shiftrt, *insv.not-bit.0, *insv.not-bit.7)
	(*insv.xor-extract, *insv.xor1-bit.0): New insns.
	(adjust_len) [insv_notbit, insv_notbit_0, insv_notbit_7]: New
	values for insn attribute.
	* config/avr/avr.c (avr_out_insert_notbit): New function.
	(avr_adjust_insn_length): Handle ADJUST_LEN_INSV_NOTBIT,
	ADJUST_LEN_INSV_NOTBIT_0/_7.
	* config/avr/avr-protos.h (avr_out_insert_notbit): New proto.

From-SVN: r238587