* config/mips/loongson2ef.md: New file.
	* config/mips/mips.md (UNSPEC_LOONGSON_ALU1_TURN_ENABLED_INSN)
	(UNSPEC_LOONGSON_ALU2_TURN_ENABLED_INSN)
	(UNSPEC_LOONGSON_FALU1_TURN_ENABLED_INSN)
	(UNSPEC_LOONGSON_FALU2_TURN_ENABLED_INSN): New constants.
	(define_attr "cpu"): Rename loongson2e and loongson2f to loongson_2e
	and loongson_2f.
	(loongson2ef.md): New include.
	* config/mips/loongson.md (vec_pack_ssat_<mode>, vec_pack_usat_<mode>)
	(add<mode>3, paddd, ssadd<mode>3, usadd<mode>3)
	(loongson_and_not_<mode>, loongson_average_<mode>, loongson_eq_<mode>)
	(loongson_gt_<mode>, loongson_extract_halfword)
	(loongson_insert_halfword_0, loongson_insert_halfword_2)
	(loongson_insert_halfword_3, loongson_mult_add, smax<mode>3)
	(umax<mode>3, smin<mode>3, umin<mode>3, loongson_move_byte_mask)
	(umul<mode>3_highpart, smul<mode>3_highpart, loongson_smul_lowpart)
	(loongson_umul_word, loongson_pasubub, reduc_uplus_<mode>)
	(loongson_psadbh, loongson_pshufh, loongson_psll<mode>)
	(loongson_psra<mode>, loongson_psrl<mode>, sub<mode>3, psubd)
	(sssub<mode>3, ussub<mode>3, vec_interleave_high<mode>)
	(vec_interleave_low<mode>): Define type attribute.
	* config/mips/mips.c (mips_ls2): New static variable.
	(mips_issue_rate): Update to handle tuning for Loongson 2E/2F.
	(mips_ls2_init_dfa_post_cycle_insn, mips_init_dfa_post_cycle_insn)
	(sched_ls2_dfa_post_advance_cycle, mips_dfa_post_advance_cycle):
	Implement target scheduling hooks.
	(mips_multipass_dfa_lookahead): Update to handle tuning for
	Loongson 2E/2F.
	(mips_sched_init): Initialize data for Loongson scheduling.
	(mips_ls2_variable_issue): New static function.
	(mips_variable_issue): Update to handle tuning for Loongson 2E/2F.
	Add sanity check.
	(TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN)
	(TARGET_SCHED_DFA_POST_ADVANCE_CYCLE): Override target hooks.
	* config/mips/mips.h (TUNE_LOONGSON_2EF): New macros.
	(ISA_HAS_XFER_DELAY, ISA_HAS_FCMP_DELAY, ISA_HAS_HILO_INTERLOCKS):
	Handle ST Loongson 2E/2F cores.
	(CPU_UNITS_QUERY): Define macro to enable querying of DFA units.

From-SVN: r136805