gcc_update (gcc/config/rs6000/rs6000-tables.opt): New dependencies.

gcc_update (gcc/config/rs6000/rs6000-tables.opt): New dependencies.

contrib:
	* gcc_update (gcc/config/rs6000/rs6000-tables.opt): New
	dependencies.

gcc:
	* config/rs6000/genopt.sh, config/rs6000/rs6000-cpus.def: New
	files.
	* config/rs6000/rs6000-tables.opt: New file (generated).
	* config.gcc (powerpc*-*-*, rs6000*-*-*): Add
	rs6000/rs6000-tables.opt to extra_options.
	* config/rs6000/rs6000-opts.h (RS6000_CPU_OPTION_NATIVE): Define.
	* config/rs6000/rs6000.c (rs6000_select): Remove.
	(processor_target_table): Move contents to rs6000-cpus.def.
	(darwin_rs6000_override_options): Check
	global_options_set.x_rs6000_cpu_index instead of
	rs6000_select[1].string.
	(rs6000_option_override_internal): Likewise.
	(rs6000_handle_option): Don't assert that global structures are in
	use.  Don't handle OPT_mcpu_ and OPT_mtune_ here.
	(rs6000_default_cpu): New variable.
	(rs6000_file_start): Set it instead of local default_cpu.  Check
	rs6000_default_cpu, global_options_set.x_rs6000_cpu_index and
	global_options_set.x_rs6000_tune_index instead of rs6000_select.
	(rs6000_darwin_file_start): Check rs6000_default_cpu and
	global_options_set.x_rs6000_cpu_index instead of rs6000_select.
	* config/rs6000/rs6000.h (struct rs6000_cpu_select,
	rs6000_select): Remove.
	* config/rs6000/rs6000.opt (rs6000_cpu_index, rs6000_tune_index):
	Remove.
	(mcpu=, mtune=): Use Var, Init, Enum and Save.
	* config/rs6000/t-rs6000
	($(srcdir)/config/rs6000/rs6000-tables.opt): New.
	* config/rs6000/eabispe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Check
	global_options_set.x_rs6000_cpu_index instead of
	rs6000_select[1].string.
	* config/rs6000/linuxspe.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Check
	global_options_set.x_rs6000_cpu_index instead of
	rs6000_select[1].string.

From-SVN: r173620