* rs6000.c (optimization_options): Decorate 'level' as
	ATTRIBUTE_UNUSED.
	(mask64_operand): Remove sign-extend thinko.
	(rldic_operand): New function.
	(load_multiple_operation): regno's are unsigned ints.
	(store_multiple_operation): Likewise.
	(lmw_operation): Likewise.
	(stmw_operation): Likewise.
	(includes_lshift_p): shift_mask is unsigned int.
	(includes_lshift64_p): New function.
	(addrs_ok_for_quad_peep): unsigned int reg1.
	(print_operand): Consistently add "else" after
	output_operand_lossage().
	(print_operand, case 'b'): Fold in case 'W'.
	(print_operand, case 'W'): Print rldic MB value.
	(output_epilogue): Update Objective-C language string.
	(output_toc): unsigned HOST_WIDE_INT low, compare unsigned.
	* rs6000.h (PREDICATE_CODES): Add rldic_operand.
	* rs6000.md (ashldi3): Add rldic instruction.
	(iordi3, xordi3): Remove redundant "else if CONST_DOUBLE".
	(cmpsi_internal2, cmpdi_interal2): Use 'b' output template
	modifier.

From-SVN: r35570