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annotate gcc/config/rs6000/a2.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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
55
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1 ;; Scheduling description for PowerPC A2 processors.
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84e7813d76e9 gcc-8.2
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2 ;; Copyright (C) 2009-2018 Free Software Foundation, Inc.
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3 ;; Contributed by Ben Elliston (bje@au.ibm.com)
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4
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5 ;; This file is part of GCC.
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6
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7 ;; GCC is free software; you can redistribute it and/or modify it
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8 ;; under the terms of the GNU General Public License as published
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9 ;; by the Free Software Foundation; either version 3, or (at your
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10 ;; option) any later version.
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11
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12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
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13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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14 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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15 ;; License for more details.
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16
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17 ;; You should have received a copy of the GNU General Public License
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18 ;; along with GCC; see the file COPYING3. If not see
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19 ;; <http://www.gnu.org/licenses/>.
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20
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21 (define_automaton "ppca2")
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22
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23 ;; CPU units
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24
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25 ;; The multiplier pipeline.
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26 (define_cpu_unit "mult" "ppca2")
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27
111
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28 ;; The auxiliary processor unit (FP/vector unit).
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29 (define_cpu_unit "axu" "ppca2")
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30
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31 ;; D.4.6
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32 ;; Some peculiarities for certain SPRs
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33
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34 (define_insn_reservation "ppca2-mfcr" 1
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35 (and (eq_attr "type" "mfcr")
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36 (eq_attr "cpu" "ppca2"))
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37 "nothing")
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38
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39 (define_insn_reservation "ppca2-mfjmpr" 5
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40 (and (eq_attr "type" "mfjmpr")
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41 (eq_attr "cpu" "ppca2"))
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42 "nothing")
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43
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44 (define_insn_reservation "ppca2-mtjmpr" 5
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45 (and (eq_attr "type" "mtjmpr")
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46 (eq_attr "cpu" "ppca2"))
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47 "nothing")
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48
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49 ;; D.4.8
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50 (define_insn_reservation "ppca2-imul" 1
111
kono
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51 (and (eq_attr "type" "mul")
kono
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52 (eq_attr "size" "8,16,32")
55
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53 (eq_attr "cpu" "ppca2"))
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54 "nothing")
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55
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56 ;; FIXME: latency and multiplier reservation for 64-bit multiply?
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57 (define_insn_reservation "ppca2-lmul" 6
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58 (and (eq_attr "type" "mul")
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59 (eq_attr "size" "64")
55
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60 (eq_attr "cpu" "ppca2"))
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61 "mult*3")
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62
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63 ;; D.4.9
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64 (define_insn_reservation "ppca2-idiv" 32
111
kono
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65 (and (eq_attr "type" "div")
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66 (eq_attr "size" "32")
55
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67 (eq_attr "cpu" "ppca2"))
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68 "mult*32")
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69
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70 (define_insn_reservation "ppca2-ldiv" 65
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kono
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71 (and (eq_attr "type" "div")
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72 (eq_attr "size" "64")
55
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73 (eq_attr "cpu" "ppca2"))
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74 "mult*65")
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75
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76 ;; D.4.13
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77 (define_insn_reservation "ppca2-load" 5
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kono
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78 (and (eq_attr "type" "load")
55
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79 (eq_attr "cpu" "ppca2"))
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80 "nothing")
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81
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82 ;; D.8.1
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83 (define_insn_reservation "ppca2-fp" 6
111
kono
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84 (and (eq_attr "type" "fp,fpsimple")
55
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85 (eq_attr "cpu" "ppca2"))
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86 "axu")
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87
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88 ;; D.8.4
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89 (define_insn_reservation "ppca2-fp-load" 6
111
kono
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90 (and (eq_attr "type" "fpload")
55
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91 (eq_attr "cpu" "ppca2"))
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92 "axu")
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93
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94 ;; D.8.5
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95 (define_insn_reservation "ppca2-fp-store" 2
111
kono
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96 (and (eq_attr "type" "fpstore")
55
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97 (eq_attr "cpu" "ppca2"))
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98 "axu")
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99
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100 ;; D.8.6
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101 (define_insn_reservation "ppca2-fpcompare" 5
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102 (and (eq_attr "type" "fpcompare")
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103 (eq_attr "cpu" "ppca2"))
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104 "axu")
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105
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106 ;; D.8.7
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107 ;;
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108 ;; Instructions from the same thread succeeding the floating-point
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109 ;; divide cannot be executed until the floating-point divide has
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110 ;; completed. Since there is nothing else we can do, this thread will
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111 ;; just have to stall.
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112
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113 (define_insn_reservation "ppca2-ddiv" 72
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114 (and (eq_attr "type" "ddiv")
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115 (eq_attr "cpu" "ppca2"))
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116 "axu")
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117
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118 (define_insn_reservation "ppca2-sdiv" 59
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119 (and (eq_attr "type" "sdiv")
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120 (eq_attr "cpu" "ppca2"))
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121 "axu")
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122
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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123 ;; D.8.8
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124 ;;
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125 ;; Instructions from the same thread succeeding the floating-point
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126 ;; divide cannot be executed until the floating-point divide has
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127 ;; completed. Since there is nothing else we can do, this thread will
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128 ;; just have to stall.
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129
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parents:
diff changeset
130 (define_insn_reservation "ppca2-dsqrt" 69
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 (and (eq_attr "type" "dsqrt")
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff changeset
132 (eq_attr "cpu" "ppca2"))
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff changeset
133 "axu")
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff changeset
134
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff changeset
135 (define_insn_reservation "ppca2-ssqrt" 65
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff changeset
136 (and (eq_attr "type" "ssqrt")
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff changeset
137 (eq_attr "cpu" "ppca2"))
77e2b8dfacca update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
diff changeset
138 "axu")