* opt-functions.awk (var_type_struct): Handle Enum options.
	* optc-gen.awk: Don't check range of variables of character type.
	* config/rs6000/rs6000.c (rs6000_sched_insert_nops_str,
	rs6000_sched_costly_dep_str, rs6000_recip_name, rs6000_abi_name,
	rs6000_sdata_name, rs6000_explicit_options): Remove.
	(rs6000_option_override_internal): Check for -malign-power here.
	Use global_options_set instead of rs6000_explicit_options.
	(rs6000_parse_fpu_option): Remove.
	(rs6000_handle_option): Access variables via opts and opts_set
	pointers.  Use error_at and warning_at.  Add fall-through
	comments.  Don't handle OPT_mcmodel_, OPT_maix_struct_return,
	OPT_msvr4_struct_return, OPT_mvrsave, OPT_mspe, OPT_mcall_,
	OPT_msdata_, OPT_mtls_size_, OPT_mtraceback_, OPT_mfloat_gprs_,
	OPT_msched_costly_dep_, OPT_malign_ or OPT_mrecip_ explicitly
	here.  Don't use rs6000_parse_fpu_option.
	* config/rs6000/rs6000.h (fpu_type): Remove declaration.
	* config/rs6000/rs6000.opt (rs6000_long_double_type_size,
	rs6000_spe, rs6000_float_gprs): Remove TargetVariable entries.
	(mrecip=): Use Var.
	(mspe): Use Var and Save.
	(mtraceback=): Use Enum and Var.
	(rs6000_traceback_type): New Enum and EnumValue entries.
	(mfloat-gprs=): Use Enum, Var and Save.
	(rs6000_float_gprs): New Enum and EnumValue entries.
	(mlong-double-): use Var and Save.
	(msched-costly-dep=, minsert-sched-nops=): Use Var.
	(malign-): Use Enum and Var.
	(rs6000_alignment_flags): New Enum and EnumValue entries.
	(mfpu=): Use Enum.
	(fpu_type_t): New Enum and EnumValue entries.
	* config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): Use
	global_options_set instead of rs6000_explicit_options.
	* config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Use
	global_options_set instead of rs6000_explicit_options.
	* config/rs6000/aix53.h (SUBTARGET_OVERRIDE_OPTIONS): Use
	global_options_set instead of rs6000_explicit_options.
	* config/rs6000/aix61.h (SUBTARGET_OVERRIDE_OPTIONS): Use
	global_options_set instead of rs6000_explicit_options.
	* config/rs6000/e500-double.h (SUB3TARGET_OVERRIDE_OPTIONS): Use
	global_options_set instead of rs6000_explicit_options.
	* config/rs6000/eabispe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Use
	global_options_set instead of rs6000_explicit_options.
	(RS6000_DEFAULT_LONG_DOUBLE_SIZE): Remove commented-out
	definition.
	* config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Use
	global_options_set instead of rs6000_explicit_options.
	* config/rs6000/linux64.opt (mcmodel=): Use Enum and Var.
	(rs6000_cmodel): New Enum and EnumValue entries.
	* config/rs6000/linuxspe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Use
	global_options_set instead of rs6000_explicit_options.
	* config/rs6000/sysv4.opt (mcall-, msdata=): Use Var.
	(mtls-size=): Use Enum and Var.
	(rs6000_tls_size): New Enum and EnumValue entries.

From-SVN: r173434