* config/mips/mips.h (PROCESSOR_R7000): New processor_type.
	(TARGET_MIPS7000, TUNE_MIPS7000): New macros.
	(GENERATE_MULT3_SI): True for TARGET_MIPS7000.
	* config/mips/mips.c (mips_cpu_info_table): Add rm7000 entry.
	(mips_rtx_costs): Adjust integer multiplication costs for the rm7000.
	(mips_issue_rate): Handle PROCESSOR_R7000.
	(mips_use_dfa_pipeline_interface): Likewise.
	* config/mips/7000.md: New file.
	* config/mips/mips.md: Include it.
	(define_attr cpu): Add r7000.
	(mulsi3_mult3): Use "mul" for rm7000 code.

From-SVN: r69394