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      1 ;; Pipeline descriptions of Andes NDS32 cpu for GNU compiler
      2 ;; Copyright (C) 2012-2022 Free Software Foundation, Inc.
      3 ;; Contributed by Andes Technology Corporation.
      4 ;;
      5 ;; This file is part of GCC.
      6 ;;
      7 ;; GCC is free software; you can redistribute it and/or modify it
      8 ;; under the terms of the GNU General Public License as published
      9 ;; by the Free Software Foundation; either version 3, or (at your
     10 ;; option) any later version.
     11 ;;
     12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
     13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     14 ;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     15 ;; License for more details.
     16 ;;
     17 ;; You should have received a copy of the GNU General Public License
     18 ;; along with GCC; see the file COPYING3.  If not see
     19 ;; <http://www.gnu.org/licenses/>.
     20 
     21 
     22 ;; ------------------------------------------------------------------------
     23 ;; Define N10 pipeline settings.
     24 ;; ------------------------------------------------------------------------
     25 
     26 (define_automaton "nds32_n10_machine")
     27 
     28 ;; ------------------------------------------------------------------------
     29 ;; Pipeline Stages
     30 ;; ------------------------------------------------------------------------
     31 ;; IF - Instruction Fetch
     32 ;; II - Instruction Issue / Instruction Decode
     33 ;; EX - Instruction Execution
     34 ;; MM - Memory Execution
     35 ;; WB - Instruction Retire / Result Write-Back
     36 
     37 (define_cpu_unit "n10_ii" "nds32_n10_machine")
     38 (define_cpu_unit "n10_ex" "nds32_n10_machine")
     39 (define_cpu_unit "n10_mm" "nds32_n10_machine")
     40 (define_cpu_unit "n10_wb" "nds32_n10_machine")
     41 (define_cpu_unit "n10f_iq" "nds32_n10_machine")
     42 (define_cpu_unit "n10f_rf" "nds32_n10_machine")
     43 (define_cpu_unit "n10f_e1" "nds32_n10_machine")
     44 (define_cpu_unit "n10f_e2" "nds32_n10_machine")
     45 (define_cpu_unit "n10f_e3" "nds32_n10_machine")
     46 (define_cpu_unit "n10f_e4" "nds32_n10_machine")
     47 
     48 (define_insn_reservation "nds_n10_unknown" 1
     49   (and (eq_attr "type" "unknown")
     50        (eq_attr "pipeline_model" "n10"))
     51   "n10_ii, n10_ex, n10_mm, n10_wb")
     52 
     53 (define_insn_reservation "nds_n10_misc" 1
     54   (and (eq_attr "type" "misc")
     55        (eq_attr "pipeline_model" "n10"))
     56   "n10_ii, n10_ex, n10_mm, n10_wb")
     57 
     58 (define_insn_reservation "nds_n10_mmu" 1
     59   (and (eq_attr "type" "mmu")
     60        (eq_attr "pipeline_model" "n10"))
     61   "n10_ii, n10_ex, n10_mm, n10_wb")
     62 
     63 (define_insn_reservation "nds_n10_alu" 1
     64   (and (eq_attr "type" "alu")
     65        (eq_attr "pipeline_model" "n10"))
     66   "n10_ii, n10_ex, n10_mm, n10_wb")
     67 
     68 (define_insn_reservation "nds_n10_alu_shift" 1
     69   (and (eq_attr "type" "alu_shift")
     70        (eq_attr "pipeline_model" "n10"))
     71   "n10_ii, n10_ii+n10_ex, n10_ex+n10_mm, n10_mm+n10_wb, n10_wb")
     72 
     73 (define_insn_reservation "nds_n10_pbsad" 1
     74   (and (eq_attr "type" "pbsad")
     75        (eq_attr "pipeline_model" "n10"))
     76   "n10_ii, n10_ex*3, n10_mm, n10_wb")
     77 
     78 (define_insn_reservation "nds_n10_pbsada" 1
     79   (and (eq_attr "type" "pbsada")
     80        (eq_attr "pipeline_model" "n10"))
     81   "n10_ii, n10_ex*3, n10_mm, n10_wb")
     82 
     83 (define_insn_reservation "nds_n10_load" 1
     84   (and (match_test "nds32::load_single_p (insn)")
     85        (eq_attr "pipeline_model" "n10"))
     86   "n10_ii, n10_ex, n10_mm, n10_wb")
     87 
     88 (define_insn_reservation "nds_n10_store" 1
     89   (and (match_test "nds32::store_single_p (insn)")
     90        (eq_attr "pipeline_model" "n10"))
     91   "n10_ii, n10_ex, n10_mm, n10_wb")
     92 
     93 (define_insn_reservation "nds_n10_load_multiple_1" 1
     94   (and (eq_attr "pipeline_model" "n10")
     95        (and (eq_attr "type" "load_multiple")
     96 	    (eq_attr "combo" "1")))
     97   "n10_ii, n10_ex, n10_mm, n10_wb")
     98 
     99 (define_insn_reservation "nds_n10_load_multiple_2" 1
    100   (and (eq_attr "pipeline_model" "n10")
    101        (ior (and (eq_attr "type" "load_multiple")
    102 		 (eq_attr "combo" "2"))
    103 	    (match_test "nds32::load_double_p (insn)")))
    104   "n10_ii, n10_ii+n10_ex, n10_ex+n10_mm, n10_mm+n10_wb, n10_wb")
    105 
    106 (define_insn_reservation "nds_n10_load_multiple_3" 1
    107   (and (eq_attr "pipeline_model" "n10")
    108        (and (eq_attr "type" "load_multiple")
    109 	    (eq_attr "combo" "3")))
    110   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    111 
    112 (define_insn_reservation "nds_n10_load_multiple_4" 1
    113   (and (eq_attr "pipeline_model" "n10")
    114        (and (eq_attr "type" "load_multiple")
    115 	    (eq_attr "combo" "4")))
    116   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, n10_ii+n10_ex+n10_mm+n10_wb, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    117 
    118 (define_insn_reservation "nds_n10_load_multiple_5" 1
    119   (and (eq_attr "pipeline_model" "n10")
    120        (and (eq_attr "type" "load_multiple")
    121 	    (eq_attr "combo" "5")))
    122   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, (n10_ii+n10_ex+n10_mm+n10_wb)*2, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    123 
    124 (define_insn_reservation "nds_n10_load_multiple_6" 1
    125   (and (eq_attr "pipeline_model" "n10")
    126        (and (eq_attr "type" "load_multiple")
    127 	    (eq_attr "combo" "6")))
    128   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, (n10_ii+n10_ex+n10_mm+n10_wb)*3, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    129 
    130 (define_insn_reservation "nds_n10_load_multiple_7" 1
    131   (and (eq_attr "pipeline_model" "n10")
    132        (and (eq_attr "type" "load_multiple")
    133 	    (eq_attr "combo" "7")))
    134   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, (n10_ii+n10_ex+n10_mm+n10_wb)*4, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    135 
    136 (define_insn_reservation "nds_n10_load_multiple_N" 1
    137   (and (eq_attr "pipeline_model" "n10")
    138        (and (eq_attr "type" "load_multiple")
    139 	    (match_test "get_attr_combo (insn) >= 8")))
    140   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, (n10_ii+n10_ex+n10_mm+n10_wb)*5, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    141 
    142 (define_insn_reservation "nds_n10_store_multiple_1" 1
    143   (and (eq_attr "pipeline_model" "n10")
    144        (and (eq_attr "type" "store_multiple")
    145 	    (eq_attr "combo" "1")))
    146   "n10_ii, n10_ex, n10_mm, n10_wb")
    147 
    148 (define_insn_reservation "nds_n10_store_multiple_2" 1
    149   (and (eq_attr "pipeline_model" "n10")
    150        (ior (and (eq_attr "type" "store_multiple")
    151 		 (eq_attr "combo" "2"))
    152        (match_test "nds32::store_double_p (insn)")))
    153   "n10_ii, n10_ii+n10_ex, n10_ex+n10_mm, n10_mm+n10_wb, n10_wb")
    154 
    155 (define_insn_reservation "nds_n10_store_multiple_3" 1
    156   (and (eq_attr "pipeline_model" "n10")
    157        (and (eq_attr "type" "store_multiple")
    158 	    (eq_attr "combo" "3")))
    159   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    160 
    161 (define_insn_reservation "nds_n10_store_multiple_4" 1
    162   (and (eq_attr "pipeline_model" "n10")
    163        (and (eq_attr "type" "store_multiple")
    164 	    (eq_attr "combo" "4")))
    165   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, n10_ii+n10_ex+n10_mm+n10_wb, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    166 
    167 (define_insn_reservation "nds_n10_store_multiple_5" 1
    168   (and (eq_attr "pipeline_model" "n10")
    169        (and (eq_attr "type" "store_multiple")
    170 	    (eq_attr "combo" "5")))
    171   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, (n10_ii+n10_ex+n10_mm+n10_wb)*2, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    172 
    173 (define_insn_reservation "nds_n10_store_multiple_6" 1
    174   (and (eq_attr "pipeline_model" "n10")
    175        (and (eq_attr "type" "store_multiple")
    176 	    (eq_attr "combo" "6")))
    177   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, (n10_ii+n10_ex+n10_mm+n10_wb)*3, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    178 
    179 (define_insn_reservation "nds_n10_store_multiple_7" 1
    180   (and (eq_attr "pipeline_model" "n10")
    181        (and (eq_attr "type" "store_multiple")
    182 	    (eq_attr "combo" "7")))
    183   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, (n10_ii+n10_ex+n10_mm+n10_wb)*4, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    184 
    185 (define_insn_reservation "nds_n10_store_multiple_N" 1
    186   (and (eq_attr "pipeline_model" "n10")
    187        (and (eq_attr "type" "store_multiple")
    188 	    (match_test "get_attr_combo (insn) >= 8")))
    189   "n10_ii, n10_ii+n10_ex, n10_ii+n10_ex+n10_mm, (n10_ii+n10_ex+n10_mm+n10_wb)*5, n10_ex+n10_mm+n10_wb, n10_mm+n10_wb, n10_wb")
    190 
    191 (define_insn_reservation "nds_n10_mul" 1
    192   (and (eq_attr "type" "mul")
    193        (eq_attr "pipeline_model" "n10"))
    194   "n10_ii, n10_ex, n10_mm, n10_wb")
    195 
    196 (define_insn_reservation "nds_n10_mac" 1
    197        (and (eq_attr "type" "mac")
    198 	    (eq_attr "pipeline_model" "n10"))
    199   "n10_ii, n10_ex, n10_mm, n10_wb")
    200 
    201 (define_insn_reservation "nds_n10_div" 1
    202   (and (eq_attr "type" "div")
    203        (eq_attr "pipeline_model" "n10"))
    204   "n10_ii, n10_ex*34, n10_mm, n10_wb")
    205 
    206 (define_insn_reservation "nds_n10_branch" 1
    207   (and (eq_attr "type" "branch")
    208        (eq_attr "pipeline_model" "n10"))
    209   "n10_ii, n10_ex, n10_mm, n10_wb")
    210 
    211 (define_insn_reservation "nds_n10_dsp_alu" 1
    212   (and (eq_attr "type" "dalu")
    213        (eq_attr "pipeline_model" "n10"))
    214   "n10_ii, n10_ex, n10_mm, n10_wb")
    215 
    216 (define_insn_reservation "nds_n10_dsp_alu64" 1
    217   (and (eq_attr "type" "dalu64")
    218        (eq_attr "pipeline_model" "n10"))
    219   "n10_ii, n10_ex, n10_mm, n10_wb")
    220 
    221 (define_insn_reservation "nds_n10_dsp_alu_round" 1
    222   (and (eq_attr "type" "daluround")
    223        (eq_attr "pipeline_model" "n10"))
    224   "n10_ii, n10_ex, n10_mm, n10_wb")
    225 
    226 (define_insn_reservation "nds_n10_dsp_cmp" 1
    227   (and (eq_attr "type" "dcmp")
    228        (eq_attr "pipeline_model" "n10"))
    229   "n10_ii, n10_ex, n10_mm, n10_wb")
    230 
    231 (define_insn_reservation "nds_n10_dsp_clip" 1
    232   (and (eq_attr "type" "dclip")
    233        (eq_attr "pipeline_model" "n10"))
    234   "n10_ii, n10_ex, n10_mm, n10_wb")
    235 
    236 (define_insn_reservation "nds_n10_dsp_mul" 1
    237   (and (eq_attr "type" "dmul")
    238        (eq_attr "pipeline_model" "n10"))
    239   "n10_ii, n10_ex, n10_mm, n10_wb")
    240 
    241 (define_insn_reservation "nds_n10_dsp_mac" 1
    242   (and (eq_attr "type" "dmac")
    243        (eq_attr "pipeline_model" "n10"))
    244   "n10_ii, n10_ex, n10_mm, n10_wb")
    245 
    246 (define_insn_reservation "nds_n10_dsp_insb" 1
    247   (and (eq_attr "type" "dinsb")
    248        (eq_attr "pipeline_model" "n10"))
    249   "n10_ii, n10_ex, n10_mm, n10_wb")
    250 
    251 (define_insn_reservation "nds_n10_dsp_pack" 1
    252   (and (eq_attr "type" "dpack")
    253        (eq_attr "pipeline_model" "n10"))
    254   "n10_ii, n10_ex, n10_mm, n10_wb")
    255 
    256 (define_insn_reservation "nds_n10_dsp_bpick" 1
    257   (and (eq_attr "type" "dbpick")
    258        (eq_attr "pipeline_model" "n10"))
    259   "n10_ii, n10_ex, n10_mm, n10_wb")
    260 
    261 (define_insn_reservation "nds_n10_dsp_wext" 1
    262   (and (eq_attr "type" "dwext")
    263        (eq_attr "pipeline_model" "n10"))
    264   "n10_ii, n10_ex, n10_mm, n10_wb")
    265 
    266 (define_insn_reservation "nds_n10_fpu_alu" 4
    267   (and (eq_attr "type" "falu")
    268        (eq_attr "pipeline_model" "n10"))
    269   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2, n10f_e3, n10f_e4")
    270 
    271 (define_insn_reservation "nds_n10_fpu_muls" 4
    272   (and (eq_attr "type" "fmuls")
    273        (eq_attr "pipeline_model" "n10"))
    274   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2, n10f_e3, n10f_e4")
    275 
    276 (define_insn_reservation "nds_n10_fpu_muld" 4
    277   (and (eq_attr "type" "fmuld")
    278        (eq_attr "pipeline_model" "n10"))
    279   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2*2, n10f_e3, n10f_e4")
    280 
    281 (define_insn_reservation "nds_n10_fpu_macs" 4
    282   (and (eq_attr "type" "fmacs")
    283        (eq_attr "pipeline_model" "n10"))
    284   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2*3, n10f_e3, n10f_e4")
    285 
    286 (define_insn_reservation "nds_n10_fpu_macd" 4
    287   (and (eq_attr "type" "fmacd")
    288        (eq_attr "pipeline_model" "n10"))
    289   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2*4, n10f_e3, n10f_e4")
    290 
    291 (define_insn_reservation "nds_n10_fpu_divs" 4
    292   (and (ior (eq_attr "type" "fdivs")
    293 	    (eq_attr "type" "fsqrts"))
    294        (eq_attr "pipeline_model" "n10"))
    295   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2*14, n10f_e3, n10f_e4")
    296 
    297 (define_insn_reservation "nds_n10_fpu_divd" 4
    298   (and (ior (eq_attr "type" "fdivd")
    299 	    (eq_attr "type" "fsqrtd"))
    300        (eq_attr "pipeline_model" "n10"))
    301   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2*28, n10f_e3, n10f_e4")
    302 
    303 (define_insn_reservation "nds_n10_fpu_fast_alu" 2
    304   (and (ior (eq_attr "type" "fcmp")
    305 	    (ior (eq_attr "type" "fabs")
    306 		 (ior (eq_attr "type" "fcpy")
    307 		      (eq_attr "type" "fcmov"))))
    308        (eq_attr "pipeline_model" "n10"))
    309   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2, n10f_e3, n10f_e4")
    310 
    311 (define_insn_reservation "nds_n10_fpu_fmtsr" 4
    312   (and (eq_attr "type" "fmtsr")
    313        (eq_attr "pipeline_model" "n10"))
    314   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2, n10f_e3, n10f_e4")
    315 
    316 (define_insn_reservation "nds_n10_fpu_fmtdr" 4
    317   (and (eq_attr "type" "fmtdr")
    318        (eq_attr "pipeline_model" "n10"))
    319   "n10_ii, n10_ii+n10f_iq, n10f_iq+n10f_rf, n10f_rf+n10f_e1, n10f_e1+n10f_e2, n10f_e2+n10f_e3, n10f_e3+n10f_e4, n10f_e4")
    320 
    321 (define_insn_reservation "nds_n10_fpu_fmfsr" 2
    322   (and (eq_attr "type" "fmfsr")
    323        (eq_attr "pipeline_model" "n10"))
    324   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2, n10f_e3, n10f_e4")
    325 
    326 (define_insn_reservation "nds_n10_fpu_fmfdr" 2
    327   (and (eq_attr "type" "fmfdr")
    328        (eq_attr "pipeline_model" "n10"))
    329   "n10_ii, n10_ii+n10f_iq, n10f_iq+n10f_rf, n10f_rf+n10f_e1, n10f_e1+n10f_e2, n10f_e2+n10f_e3, n10f_e3+n10f_e4, n10f_e4")
    330 
    331 (define_insn_reservation "nds_n10_fpu_load" 3
    332   (and (eq_attr "type" "fload")
    333        (eq_attr "pipeline_model" "n10"))
    334   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2, n10f_e3, n10f_e4")
    335 
    336 (define_insn_reservation "nds_n10_fpu_store" 1
    337   (and (eq_attr "type" "fstore")
    338        (eq_attr "pipeline_model" "n10"))
    339   "n10_ii, n10f_iq, n10f_rf, n10f_e1, n10f_e2, n10f_e3, n10f_e4")
    340 
    341 ;; ------------------------------------------------------------------------
    342 ;; Comment Notations and Bypass Rules
    343 ;; ------------------------------------------------------------------------
    344 ;; Producers (LHS)
    345 ;;   LD
    346 ;;     Load data from the memory and produce the loaded data. The result is
    347 ;;     ready at MM.
    348 ;;   LMW(N, M)
    349 ;;     There are N micro-operations within an instruction that loads multiple
    350 ;;     words. The result produced by the M-th micro-operation is sent to
    351 ;;     consumers. The result is ready at MM.
    352 ;;   MUL, MAC
    353 ;;     Compute data in the multiply-adder and produce the data. The result
    354 ;;     is ready at MM.
    355 ;;   DIV
    356 ;;     Compute data in the divider and produce the data. The result is ready
    357 ;;     at MM.
    358 ;;
    359 ;; Consumers (RHS)
    360 ;;   ALU, MOVD44, PBSAD, PBSADA_RaRb, MUL, MAC, DIV, MMU
    361 ;;     Require operands at EX.
    362 ;;   ALU_SHIFT_Rb
    363 ;;     An ALU-SHIFT instruction consists of a shift micro-operation followed
    364 ;;     by an arithmetic micro-operation. The operand Rb is used by the first
    365 ;;     micro-operation, and there are some latencies if data dependency occurs.
    366 ;;   MAC_RaRb
    367 ;;     A MAC instruction does multiplication at EX and does accumulation at MM,
    368 ;;     so the operand Rt is required at MM, and operands Ra and Rb are required
    369 ;;     at EX.
    370 ;;   ADDR_IN
    371 ;;     If an instruction requires an address as its input operand, the address
    372 ;;     is required at EX.
    373 ;;   ST
    374 ;;     A store instruction requires its data at MM.
    375 ;;   SMW(N, M)
    376 ;;     There are N micro-operations within an instruction that stores multiple
    377 ;;     words. Each M-th micro-operation requires its data at MM.
    378 ;;   BR
    379 ;;     If a branch instruction is conditional, its input data is required at EX.
    380 
    381 ;; FPU_ADDR_OUT -> FPU_ADDR_IN
    382 ;; Main pipeline rules don't need this because those default latency is 1.
    383 (define_bypass 1
    384   "nds_n10_fpu_load, nds_n10_fpu_store"
    385   "nds_n10_fpu_load, nds_n10_fpu_store"
    386   "nds32_n10_ex_to_ex_p"
    387 )
    388 
    389 ;; LD, MUL, MAC, DIV, DALU64, DMUL, DMAC, DALUROUND, DBPICK, DWEXT
    390 ;;   -> ALU, ALU_SHIFT_Rb, PBSAD, PBSADA_RaRb, MOVD44, MUL, MAC_RaRb, DIV, ADDR_IN, BR, MMU,
    391 ;;      DALU, DALUROUND, DMUL, DMAC_RaRb, DPACK, DINSB, DCMP, DCLIP, WEXT_O, BPICK_RaRb
    392 (define_bypass 2
    393   "nds_n10_load, nds_n10_mul, nds_n10_mac, nds_n10_div,\
    394    nds_n10_dsp_alu64, nds_n10_dsp_mul, nds_n10_dsp_mac,\
    395    nds_n10_dsp_alu_round, nds_n10_dsp_bpick, nds_n10_dsp_wext"
    396   "nds_n10_alu, nds_n10_alu_shift,\
    397    nds_n10_pbsad, nds_n10_pbsada,\
    398    nds_n10_mul, nds_n10_mac, nds_n10_div,\
    399    nds_n10_branch,\
    400    nds_n10_load, nds_n10_store,\
    401    nds_n10_load_multiple_1, nds_n10_load_multiple_2, nds_n10_load_multiple_3,\
    402    nds_n10_load_multiple_4, nds_n10_load_multiple_5, nds_n10_load_multiple_6,\
    403    nds_n10_load_multiple_7, nds_n10_load_multiple_N,\
    404    nds_n10_store_multiple_1, nds_n10_store_multiple_2, nds_n10_store_multiple_3,\
    405    nds_n10_store_multiple_4, nds_n10_store_multiple_5, nds_n10_store_multiple_6,\
    406    nds_n10_store_multiple_7, nds_n10_store_multiple_N,\
    407    nds_n10_mmu,\
    408    nds_n10_dsp_alu, nds_n10_dsp_alu_round,\
    409    nds_n10_dsp_mul, nds_n10_dsp_mac, nds_n10_dsp_pack,\
    410    nds_n10_dsp_insb, nds_n10_dsp_cmp, nds_n10_dsp_clip,\
    411    nds_n10_dsp_wext, nds_n10_dsp_bpick"
    412   "nds32_n10_mm_to_ex_p"
    413 )
    414 
    415 ;; LMW(N, N)
    416 ;;   -> ALU, ALU_SHIFT_Rb, PBSAD, PBSADA_RaRb, MOVD44, MUL, MAC_RaRb, DIV, ADDR_IN, BR, MMU
    417 ;;      DALU, DALUROUND, DMUL, DMAC_RaRb, DPACK, DINSB, DCMP, DCLIP, WEXT_O, BPICK_RaRb
    418 (define_bypass 2
    419   "nds_n10_load_multiple_1, nds_n10_load_multiple_2, nds_n10_load_multiple_3,\
    420    nds_n10_load_multiple_4, nds_n10_load_multiple_5, nds_n10_load_multiple_6,\
    421    nds_n10_load_multiple_7, nds_n10_load_multiple_N"
    422   "nds_n10_alu, nds_n10_alu_shift,\
    423    nds_n10_pbsad, nds_n10_pbsada,\
    424    nds_n10_mul, nds_n10_mac, nds_n10_div,\
    425    nds_n10_branch,\
    426    nds_n10_load, nds_n10_store,\
    427    nds_n10_load_multiple_1, nds_n10_load_multiple_2, nds_n10_load_multiple_3,\
    428    nds_n10_load_multiple_4, nds_n10_load_multiple_5, nds_n10_load_multiple_6,\
    429    nds_n10_load_multiple_7, nds_n10_load_multiple_N,\
    430    nds_n10_store_multiple_1, nds_n10_store_multiple_2, nds_n10_store_multiple_3,\
    431    nds_n10_store_multiple_4, nds_n10_store_multiple_5, nds_n10_store_multiple_6,\
    432    nds_n10_store_multiple_7, nds_n10_store_multiple_N,\
    433    nds_n10_mmu,\
    434    nds_n10_dsp_alu, nds_n10_dsp_alu_round,\
    435    nds_n10_dsp_mul, nds_n10_dsp_mac, nds_n10_dsp_pack,\
    436    nds_n10_dsp_insb, nds_n10_dsp_cmp, nds_n10_dsp_clip,\
    437    nds_n10_dsp_wext, nds_n10_dsp_bpick"
    438   "nds32_n10_last_load_to_ex_p"
    439 )
    440