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      1 ;; Pipeline model for LoongArch LA464 cores.
      2 
      3 ;; Copyright (C) 2021-2022 Free Software Foundation, Inc.
      4 ;; Contributed by Loongson Ltd.
      5 
      6 ;; This file is part of GCC.
      7 ;;
      8 ;; GCC is free software; you can redistribute it and/or modify it
      9 ;; under the terms of the GNU General Public License as published
     10 ;; by the Free Software Foundation; either version 3, or (at your
     11 ;; option) any later version.
     12 ;;
     13 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
     14 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     15 ;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     16 ;; License for more details.
     17 ;;
     18 ;; You should have received a copy of the GNU General Public License
     19 ;; along with GCC; see the file COPYING3.  If not see
     20 ;; <http://www.gnu.org/licenses/>.
     21 
     22 ;; Uncomment the following line to output automata for debugging.
     23 ;; (automata_option "v")
     24 
     25 ;; Automaton for integer instructions.
     26 (define_automaton "la464_a_alu")
     27 
     28 ;; Automaton for floating-point instructions.
     29 (define_automaton "la464_a_falu")
     30 
     31 ;; Automaton for memory operations.
     32 (define_automaton "la464_a_mem")
     33 
     34 ;; Describe the resources.
     35 
     36 (define_cpu_unit "la464_alu1" "la464_a_alu")
     37 (define_cpu_unit "la464_alu2" "la464_a_alu")
     38 (define_cpu_unit "la464_mem1" "la464_a_mem")
     39 (define_cpu_unit "la464_mem2" "la464_a_mem")
     40 (define_cpu_unit "la464_falu1" "la464_a_falu")
     41 (define_cpu_unit "la464_falu2" "la464_a_falu")
     42 
     43 ;; Describe instruction reservations.
     44 
     45 (define_insn_reservation "la464_arith" 1
     46   (and (match_test "TARGET_TUNE_LA464")
     47        (eq_attr "type" "arith,clz,const,logical,
     48 			move,nop,shift,signext,slt"))
     49   "la464_alu1 | la464_alu2")
     50 
     51 (define_insn_reservation "la464_branch" 1
     52   (and (match_test "TARGET_TUNE_LA464")
     53        (eq_attr "type" "branch,jump,call,condmove,trap"))
     54   "la464_alu1 | la464_alu2")
     55 
     56 (define_insn_reservation "la464_imul" 7
     57   (and (match_test "TARGET_TUNE_LA464")
     58        (eq_attr "type" "imul"))
     59   "la464_alu1 | la464_alu2")
     60 
     61 (define_insn_reservation "la464_idiv_si" 12
     62   (and (match_test "TARGET_TUNE_LA464")
     63        (and (eq_attr "type" "idiv")
     64 	    (eq_attr "mode" "SI")))
     65   "la464_alu1 | la464_alu2")
     66 
     67 (define_insn_reservation "la464_idiv_di" 25
     68   (and (match_test "TARGET_TUNE_LA464")
     69        (and (eq_attr "type" "idiv")
     70 	    (eq_attr "mode" "DI")))
     71   "la464_alu1 | la464_alu2")
     72 
     73 (define_insn_reservation "la464_load" 4
     74   (and (match_test "TARGET_TUNE_LA464")
     75        (eq_attr "type" "load"))
     76   "la464_mem1 | la464_mem2")
     77 
     78 (define_insn_reservation "la464_gpr_fp" 16
     79   (and (match_test "TARGET_TUNE_LA464")
     80        (eq_attr "type" "mftg,mgtf"))
     81   "la464_mem1")
     82 
     83 (define_insn_reservation "la464_fpload" 4
     84   (and (match_test "TARGET_TUNE_LA464")
     85        (eq_attr "type" "fpload"))
     86   "la464_mem1 | la464_mem2")
     87 
     88 (define_insn_reservation "la464_prefetch" 0
     89   (and (match_test "TARGET_TUNE_LA464")
     90        (eq_attr "type" "prefetch,prefetchx"))
     91   "la464_mem1 | la464_mem2")
     92 
     93 (define_insn_reservation "la464_store" 0
     94   (and (match_test "TARGET_TUNE_LA464")
     95        (eq_attr "type" "store,fpstore,fpidxstore"))
     96   "la464_mem1 | la464_mem2")
     97 
     98 (define_insn_reservation "la464_fadd" 4
     99   (and (match_test "TARGET_TUNE_LA464")
    100        (eq_attr "type" "fadd,fmul,fmadd"))
    101   "la464_falu1 | la464_falu2")
    102 
    103 (define_insn_reservation "la464_fcmp" 2
    104   (and (match_test "TARGET_TUNE_LA464")
    105        (eq_attr "type" "fabs,fcmp,fmove,fneg"))
    106   "la464_falu1 | la464_falu2")
    107 
    108 (define_insn_reservation "la464_fcvt" 4
    109   (and (match_test "TARGET_TUNE_LA464")
    110        (eq_attr "type" "fcvt"))
    111   "la464_falu1 | la464_falu2")
    112 
    113 (define_insn_reservation "la464_fdiv_sf" 12
    114   (and (match_test "TARGET_TUNE_LA464")
    115        (and (eq_attr "type" "fdiv,frdiv,fsqrt,frsqrt")
    116 	    (eq_attr "mode" "SF")))
    117   "la464_falu1 | la464_falu2")
    118 
    119 (define_insn_reservation "la464_fdiv_df" 19
    120   (and (match_test "TARGET_TUNE_LA464")
    121        (and (eq_attr "type" "fdiv,frdiv,fsqrt,frsqrt")
    122 	    (eq_attr "mode" "DF")))
    123   "la464_falu1 | la464_falu2")
    124 
    125 ;; Force single-dispatch for unknown or multi.
    126 (define_insn_reservation "la464_unknown" 1
    127   (and (match_test "TARGET_TUNE_LA464")
    128        (eq_attr "type" "unknown,multi,atomic,syncloop"))
    129   "la464_alu1 + la464_alu2 + la464_falu1
    130    + la464_falu2 + la464_mem1 + la464_mem2")
    131 
    132 ;; End of DFA-based pipeline description for la464
    133