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annotate gcc/config/riscv/generic.md @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
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1 ;; Generic DFA-based pipeline description for RISC-V targets.
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84e7813d76e9 gcc-8.2
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2 ;; Copyright (C) 2011-2018 Free Software Foundation, Inc.
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3 ;; Contributed by Andrew Waterman (andrew@sifive.com).
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4 ;; Based on MIPS target for GNU compiler.
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5
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6 ;; This file is part of GCC.
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7
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8 ;; GCC is free software; you can redistribute it and/or modify it
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9 ;; under the terms of the GNU General Public License as published
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10 ;; by the Free Software Foundation; either version 3, or (at your
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11 ;; option) any later version.
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12
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13 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
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14 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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15 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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16 ;; License for more details.
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17
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18 ;; You should have received a copy of the GNU General Public License
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19 ;; along with GCC; see the file COPYING3. If not see
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20 ;; <http://www.gnu.org/licenses/>.
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21
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22
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23 (define_automaton "pipe0")
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24 (define_cpu_unit "alu" "pipe0")
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25 (define_cpu_unit "imuldiv" "pipe0")
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26 (define_cpu_unit "fdivsqrt" "pipe0")
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27
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28 (define_insn_reservation "generic_alu" 1
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29 (eq_attr "type" "unknown,const,arith,shift,slt,multi,nop,logical,move")
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30 "alu")
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31
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32 (define_insn_reservation "generic_load" 3
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33 (eq_attr "type" "load,fpload")
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34 "alu")
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35
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36 (define_insn_reservation "generic_store" 1
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37 (eq_attr "type" "store,fpstore")
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38 "alu")
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39
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40 (define_insn_reservation "generic_xfer" 3
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41 (eq_attr "type" "mfc,mtc,fcvt,fmove,fcmp")
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42 "alu")
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43
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44 (define_insn_reservation "generic_branch" 1
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45 (eq_attr "type" "branch,jump,call")
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46 "alu")
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47
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48 (define_insn_reservation "generic_imul" 10
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49 (eq_attr "type" "imul")
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50 "imuldiv*10")
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51
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52 (define_insn_reservation "generic_idivsi" 34
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53 (and (eq_attr "type" "idiv")
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54 (eq_attr "mode" "SI"))
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55 "imuldiv*34")
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56
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57 (define_insn_reservation "generic_idivdi" 66
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58 (and (eq_attr "type" "idiv")
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59 (eq_attr "mode" "DI"))
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60 "imuldiv*66")
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61
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62 (define_insn_reservation "generic_fmul_single" 5
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63 (and (eq_attr "type" "fadd,fmul,fmadd")
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64 (eq_attr "mode" "SF"))
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65 "alu")
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66
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67 (define_insn_reservation "generic_fmul_double" 7
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68 (and (eq_attr "type" "fadd,fmul,fmadd")
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69 (eq_attr "mode" "DF"))
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70 "alu")
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71
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72 (define_insn_reservation "generic_fdiv" 20
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73 (eq_attr "type" "fdiv")
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74 "fdivsqrt*20")
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75
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76 (define_insn_reservation "generic_fsqrt" 25
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77 (eq_attr "type" "fsqrt")
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78 "fdivsqrt*25")