* doc/invoke.texi: Add cpu_type's 464 and 464fp.
	(-mmulhw): Add 464 to description.
	(-mdlmzb): Likewise.
	* config.gcc: Handle --with-cpu=464 and --with-cpu=464fp.
	* config/rs6000/rs6000.c (processor_target_table): Add 464 and
	464fp entries.
	* config/rs6000/rs6000.h (ASM_CPU_SPEC): Add 464 and 464fp support.
	* config/rs6000/t-fprules (MULTILIB_MATCHES_FLOAT): Include -mcpu=464.
	* config/rs6000/rs6000.md: Update comments for 464.

From-SVN: r135730