[78] | 1 | /* |
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| 2 | * $Id: Parameters.cpp 146 2011-02-01 20:57:54Z rosiere $ |
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| 3 | * |
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| 4 | * [ Description ] |
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| 5 | * |
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| 6 | */ |
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| 7 | |
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| 8 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Direction/include/Parameters.h" |
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| 9 | |
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| 10 | namespace morpheo { |
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| 11 | namespace behavioural { |
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| 12 | namespace core { |
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| 13 | namespace multi_front_end { |
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| 14 | namespace front_end { |
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| 15 | namespace prediction_unit { |
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| 16 | namespace direction { |
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| 17 | |
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| 18 | |
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| 19 | #undef FUNCTION |
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| 20 | #define FUNCTION "Direction::Parameters" |
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[146] | 21 | Parameters::Parameters (Tpredictor_t predictor_scheme , |
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| 22 | uint32_t nb_inst_predict , |
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| 23 | uint32_t nb_inst_update , |
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| 24 | uint32_t size_address , |
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| 25 | bool have_bht [3], |
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| 26 | uint32_t bht_size_shifter [3], |
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| 27 | uint32_t bht_nb_shifter [3], |
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| 28 | bool have_pht [3], |
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| 29 | uint32_t pht_size_counter [3], |
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| 30 | uint32_t pht_nb_counter [3], |
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| 31 | uint32_t pht_size_address_share [3], |
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| 32 | Tpht_scheme_t pht_scheme [3], |
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| 33 | bool is_toplevel) |
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[78] | 34 | { |
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| 35 | log_printf(FUNC,Direction,FUNCTION,"Begin"); |
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| 36 | |
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| 37 | _predictor_scheme = predictor_scheme ; |
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| 38 | _nb_inst_predict = nb_inst_predict ; |
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| 39 | _nb_inst_update = nb_inst_update ; |
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[88] | 40 | // _size_address = size_address ; |
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[78] | 41 | |
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| 42 | for (uint32_t i=0; i<3; i++) |
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| 43 | { |
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| 44 | _have_bht [i] = have_bht [i]; |
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| 45 | _bht_size_shifter [i] = bht_size_shifter [i]; |
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| 46 | _bht_nb_shifter [i] = bht_nb_shifter [i]; |
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| 47 | _have_pht [i] = have_pht [i]; |
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| 48 | _pht_size_counter [i] = pht_size_counter [i]; |
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| 49 | _pht_nb_counter [i] = pht_nb_counter [i]; |
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| 50 | _pht_size_address_share [i] = pht_size_address_share [i]; |
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[146] | 51 | _pht_scheme [i] = pht_scheme [i]; |
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[78] | 52 | } |
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| 53 | |
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| 54 | switch (predictor_scheme) |
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| 55 | { |
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| 56 | case PREDICTOR_NEVER_TAKE : |
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| 57 | case PREDICTOR_ALWAYS_TAKE : |
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| 58 | case PREDICTOR_STATIC : |
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| 59 | case PREDICTOR_LAST_TAKE : |
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| 60 | { |
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| 61 | _have_component_meta_predictor = false; |
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| 62 | |
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| 63 | for (uint32_t i=0; i<3; i++) |
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| 64 | { |
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| 65 | _have_bht [i] = false; |
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| 66 | _have_pht [i] = false; |
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| 67 | } |
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| 68 | |
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| 69 | break; |
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| 70 | } |
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| 71 | case PREDICTOR_COUNTER : |
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| 72 | { |
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| 73 | _have_bht [0] = false; |
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| 74 | _have_pht [0] = true ; |
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| 75 | for (uint32_t i=1; i<3; i++) |
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| 76 | { |
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| 77 | _have_bht [i] = false; |
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| 78 | _have_pht [i] = false; |
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| 79 | } |
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| 80 | |
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| 81 | _have_component_meta_predictor = true; |
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| 82 | break; |
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| 83 | } |
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| 84 | case PREDICTOR_LOCAL : |
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| 85 | { |
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| 86 | _have_bht [0] = true; |
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| 87 | _have_pht [0] = true; |
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| 88 | _bht_nb_shifter [0] = (_bht_nb_shifter [0]<2)?2:_bht_nb_shifter [0]; // min : 2 |
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| 89 | for (uint32_t i=1; i<3; i++) |
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| 90 | { |
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| 91 | _have_bht [i] = false; |
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| 92 | _have_pht [i] = false; |
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| 93 | } |
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| 94 | |
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| 95 | _have_component_meta_predictor = true; |
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| 96 | break; |
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| 97 | } |
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| 98 | case PREDICTOR_GLOBAL : |
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| 99 | { |
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| 100 | |
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| 101 | _have_bht [0] = true; |
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| 102 | _have_pht [0] = true; |
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| 103 | _bht_nb_shifter [0] = 1; // one global shifter |
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| 104 | for (uint32_t i=1; i<3; i++) |
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| 105 | { |
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| 106 | _have_bht [i] = false; |
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| 107 | _have_pht [i] = false; |
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| 108 | } |
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| 109 | |
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| 110 | _have_component_meta_predictor = true; |
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| 111 | break; |
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| 112 | } |
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| 113 | case PREDICTOR_META : |
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| 114 | { |
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| 115 | // predictor_0 = global |
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| 116 | // predictor_1 = local |
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| 117 | // predictor_2 = counter : select between predictor_0 and predictor_1 |
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| 118 | _have_bht [0] = true; |
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| 119 | _have_pht [0] = true; |
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| 120 | _bht_nb_shifter [0] = (_bht_nb_shifter [0]<2)?2:_bht_nb_shifter [0]; // min : 2 |
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| 121 | _have_bht [1] = true; |
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| 122 | _have_pht [1] = true; |
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| 123 | _bht_nb_shifter [1] = 1; // one global shifter |
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| 124 | _have_bht [2] = false; |
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| 125 | _have_pht [2] = true; |
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| 126 | |
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| 127 | _have_component_meta_predictor = true; |
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| 128 | break; |
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| 129 | } |
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| 130 | case PREDICTOR_CUSTOM : |
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| 131 | { |
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| 132 | // keep user define |
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| 133 | _have_component_meta_predictor = true; |
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| 134 | break; |
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| 135 | } |
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| 136 | } |
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| 137 | |
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[111] | 138 | test(); |
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| 139 | |
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| 140 | if (_have_component_meta_predictor) |
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| 141 | _param_meta_predictor = new morpheo::behavioural::core::multi_front_end::front_end::prediction_unit::direction::meta_predictor::Parameters |
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| 142 | ( |
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| 143 | _nb_inst_predict , |
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| 144 | _nb_inst_update , |
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| 145 | size_address , |
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| 146 | _have_bht , |
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| 147 | _bht_size_shifter , |
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| 148 | _bht_nb_shifter , |
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| 149 | _have_pht , |
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| 150 | _pht_size_counter , |
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| 151 | _pht_nb_counter , |
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[146] | 152 | _pht_size_address_share, |
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| 153 | _pht_scheme |
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[111] | 154 | ); |
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[78] | 155 | |
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[111] | 156 | _size_history = (_have_component_meta_predictor)?_param_meta_predictor->_size_history:0; |
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[78] | 157 | |
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[111] | 158 | log_printf(TRACE,Direction,FUNCTION," * size_history : %d",_size_history); |
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[88] | 159 | |
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[111] | 160 | // _size_history = 0; |
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| 161 | // for (uint32_t i=0; i<3; i++) |
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| 162 | // _size_history += (((_have_bht [i])?_bht_size_shifter [i]:0) + |
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| 163 | // ((_have_pht [i])?_pht_size_counter [i]:0)); |
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| 164 | |
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| 165 | _have_port_history = (_size_history > 0); |
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| 166 | |
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[78] | 167 | _param_glue = new morpheo::behavioural::core::multi_front_end::front_end::prediction_unit::direction::direction_glue::Parameters |
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| 168 | (_predictor_scheme, |
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| 169 | _nb_inst_predict , |
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| 170 | _nb_inst_update , |
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[88] | 171 | size_address , |
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[78] | 172 | _size_history ); |
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| 173 | |
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[88] | 174 | if (is_toplevel) |
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| 175 | { |
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| 176 | _size_instruction_address = size_address; |
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[78] | 177 | |
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[88] | 178 | copy (); |
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| 179 | } |
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| 180 | |
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[78] | 181 | log_printf(FUNC,Direction,FUNCTION,"End"); |
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| 182 | }; |
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| 183 | |
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| 184 | // #undef FUNCTION |
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| 185 | // #define FUNCTION "Direction::Parameters (copy)" |
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| 186 | // Parameters::Parameters (Parameters & param) |
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| 187 | // { |
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| 188 | // log_printf(FUNC,Direction,FUNCTION,"Begin"); |
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| 189 | // test(); |
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| 190 | // log_printf(FUNC,Direction,FUNCTION,"End"); |
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| 191 | // }; |
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| 192 | |
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| 193 | #undef FUNCTION |
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| 194 | #define FUNCTION "Direction::~Parameters" |
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| 195 | Parameters::~Parameters () |
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| 196 | { |
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| 197 | log_printf(FUNC,Direction,FUNCTION,"Begin"); |
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| 198 | |
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| 199 | delete _param_glue; |
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[111] | 200 | if (_have_component_meta_predictor) |
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| 201 | delete _param_meta_predictor; |
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| 202 | |
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[78] | 203 | log_printf(FUNC,Direction,FUNCTION,"End"); |
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| 204 | }; |
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| 205 | |
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[88] | 206 | #undef FUNCTION |
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| 207 | #define FUNCTION "Direction::copy" |
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| 208 | void Parameters::copy (void) |
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| 209 | { |
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| 210 | log_printf(FUNC,Direction,FUNCTION,"Begin"); |
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| 211 | |
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| 212 | COPY(_param_glue); |
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| 213 | |
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| 214 | log_printf(FUNC,Direction,FUNCTION,"End"); |
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| 215 | }; |
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| 216 | |
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[78] | 217 | }; // end namespace direction |
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| 218 | }; // end namespace prediction_unit |
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| 219 | }; // end namespace front_end |
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| 220 | }; // end namespace multi_front_end |
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| 221 | }; // end namespace core |
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| 222 | |
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| 223 | }; // end namespace behavioural |
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| 224 | }; // end namespace morpheo |
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