2008-10-07  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386-protos.h (ix86_schedule): New.

	* config/i386/i386.c (ix86_schedule): New.
	(override_options): Add schedule to processor_alias_table.  Set
	ix86_schedule from the schedule field in processor_alias_table.
	(ix86_function_specific_save): Save ix86_schedule.
	(ix86_function_specific_restore): Restore ix86_schedule.

	* config/i386/i386.md (cpu): Map to ix86_schedule instead of
	ix86_tune.  Add none and remove i386, i486, pentium4, nocona
	and generic32.

	* config/i386/i386.opt: Add schedule.

	* config/i386/ppro.md: Remove generic32.

From-SVN: r140954