MIPS: Update I6400 scheduler.

MIPS: Update I6400 scheduler.

gcc/ChangeLog:

2018-06-12  Prachi Godbole  <prachi.godbole@imgtec.com>

	* config/mips/i6400.md (i6400_gpmuldiv): Remove cpu_unit.
	(i6400_gpmul): Add cpu_unit.
	(i6400_gpdiv): Likewise.
	(i6400_msa_add_d): Update reservations.
	(i6400_msa_int_add) Likewise.
	(i6400_msa_short_logic3) Likewise.
	(i6400_msa_short_logic2) Likewise.
	(i6400_msa_short_logic) Likewise.
	(i6400_msa_move) Likewise.
	(i6400_msa_cmp) Likewise.
	(i6400_msa_short_float2) Likewise.
	(i6400_msa_div_d) Likewise.
	(i6400_msa_long_logic1) Likewise.
	(i6400_msa_long_logic2) Likewise.
	(i6400_msa_mult) Likewise.
	(i6400_msa_long_float2) Likewise.
	(i6400_msa_long_float4) Likewise.
	(i6400_msa_long_float5) Likewise.
	(i6400_msa_long_float8) Likewise.
	(i6400_fpu_fadd): Include frint type.
	(i6400_fpu_store): New define_insn_reservation.
	(i6400_fpu_load): Likewise.
	(i6400_fpu_move): Likewise.
	(i6400_fpu_fcmp): Likewise.
	(i6400_fpu_fmadd): Likewise.
	(i6400_int_mult): Include imul3nc type and update reservation.
	(i6400_int_div): Include idiv3 type and update reservation.
	(i6400_int_load): Update to check type not move_type.
	(i6400_int_store): Likewise.
	(i6400_int_prefetch): Set zero latency.

From-SVN: r261489