* config/mips/mips-protos.h (mips_linked_macc_p): Declare.
	* config/mips/mips.h (TUNE_MACC_CHAINS): New macro.
	* config/mips/mips.c (TARGET_SCHED_REORDER): Define.
	(TARGET_SCHED_VARIABLE_ISSUE): Define.
	(mips_adjust_cost): Move later in file, next to other sched hooks.
	(mips_macc_chains_last_hilo): New variable.
	(mips_linked_madd_p, mips_macc_chains_record, mips_macc_chains_reorder)
	(mips_promote_ready, mips_sched_reorder, mips_variable_issue): New.
	* config/mips/mips.md (may_clobber_hilo): New attribute.

From-SVN: r81157