avr-protos.h (extra_constraint): change a type of second argument from char to int to avoid warnings.

 	* config/avr/avr-protos.h (extra_constraint): change a type of
	second argument from char to int to avoid warnings.
	(asm_output_byte): Likewise.

	* config/avr/avr.c (MAX_LD_OFFSET) New macro.
	(initial_elimination_offset): Handle elimination from
	FRAME_POINTER_REGNUM to STACK_POINTER_REGNUM.
	(legitimate_address_p): Use MAX_LD_OFFSET.
	(legitimize_address): Likewise.
	(out_movqi_r_mr): Likewise.
	(out_movhi_r_mr): Likewise, use `fatal_insn' instead of `fatal'.
	(out_movsi_r_mr): Use MAX_LD_OFFSET.
	(out_movsi_mr_r): Likewise.
	(out_movqi_mr_r): Likewise.
	(out_movhi_mr_r): Likewise.
	(notice_update_cc): Correct CC for the ashrqi3 with the shift
	count as CONST_INT != 6.
	(ashlqi3_out): Coding style modifications. Run `fatal_insn' if
	shift count is a CONSTANT_P, but not a CONST_INT.
	(ashlhi3_out): Coding style modifications.
	(ashlsi3_out): Likewise.
	(ashrhi3_out): Likewise.
	(ashrsi3_out): Likewise.
	(lshrhi3_out): Likewise.
	(lshrsi3_out): Likewise.
	(ashrqi3_out): Generate shift for any known constant count without
	scratch register. Run `fatal_insn' if shift count is a CONSTANT_P,
	but not a CONST_INT.
	(lshrqi3_out): Coding style modifications. Run `fatal_insn' if
	shift count is a CONSTANT_P, but not a CONST_INT.
	(extra_constraint): change a type of
	second argument from char to int to avoid warnings.
	(asm_output_byte): Likewise.
	(asm_file_end): Output size generated commands count as a hex
	number too.

	* config/avr/avr.h (RETURN_ADDR_RTX): New macro.

	* config/avr/avr.md (addhi3): Fragment commented by &&0 is
	removed.
	(ashlqi3): Values of "length" attribute changed. Shift count
	uses constraints 'n' instead of 'i'.
	(ashrqi3): Likewise. Values of "cc" attribute changed. Generate
	shifts without clobber register.
	(lshrqi3): Shift count uses constraints 'n' instead of 'i'.
	(call_insn): Correct test for which_alternative == 1 (was 0).
	(call_value_insn): Likewise.

	* config/avr/t-avr: Remove definition of FLOAT while generates
	fp-bit.c

From-SVN: r33802