1 /* 2 * Copyright 2010 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 /** 25 * \file ir_rvalue_visitor.cpp 26 * 27 * Generic class to implement the common pattern we have of wanting to 28 * visit each ir_rvalue * and possibly change that node to a different 29 * class. 30 */ 31 32 #include "ir.h" 33 #include "ir_visitor.h" 34 #include "ir_rvalue_visitor.h" 35 #include "compiler/glsl_types.h" 36 37 ir_visitor_status 38 ir_rvalue_base_visitor::rvalue_visit(ir_expression *ir) 39 { 40 unsigned int operand; 41 42 for (operand = 0; operand < ir->get_num_operands(); operand++) { 43 handle_rvalue(&ir->operands[operand]); 44 } 45 46 return visit_continue; 47 } 48 49 ir_visitor_status 50 ir_rvalue_base_visitor::rvalue_visit(ir_texture *ir) 51 { 52 handle_rvalue(&ir->coordinate); 53 handle_rvalue(&ir->projector); 54 handle_rvalue(&ir->shadow_comparator); 55 handle_rvalue(&ir->offset); 56 57 switch (ir->op) { 58 case ir_tex: 59 case ir_lod: 60 case ir_query_levels: 61 case ir_texture_samples: 62 case ir_samples_identical: 63 break; 64 case ir_txb: 65 handle_rvalue(&ir->lod_info.bias); 66 break; 67 case ir_txf: 68 case ir_txl: 69 case ir_txs: 70 handle_rvalue(&ir->lod_info.lod); 71 break; 72 case ir_txf_ms: 73 handle_rvalue(&ir->lod_info.sample_index); 74 break; 75 case ir_txd: 76 handle_rvalue(&ir->lod_info.grad.dPdx); 77 handle_rvalue(&ir->lod_info.grad.dPdy); 78 break; 79 case ir_tg4: 80 handle_rvalue(&ir->lod_info.component); 81 break; 82 } 83 84 return visit_continue; 85 } 86 87 ir_visitor_status 88 ir_rvalue_base_visitor::rvalue_visit(ir_swizzle *ir) 89 { 90 handle_rvalue(&ir->val); 91 return visit_continue; 92 } 93 94 ir_visitor_status 95 ir_rvalue_base_visitor::rvalue_visit(ir_dereference_array *ir) 96 { 97 /* The array index is not the target of the assignment, so clear the 98 * 'in_assignee' flag. Restore it after returning from the array index. 99 */ 100 const bool was_in_assignee = this->in_assignee; 101 this->in_assignee = false; 102 handle_rvalue(&ir->array_index); 103 this->in_assignee = was_in_assignee; 104 105 handle_rvalue(&ir->array); 106 return visit_continue; 107 } 108 109 ir_visitor_status 110 ir_rvalue_base_visitor::rvalue_visit(ir_dereference_record *ir) 111 { 112 handle_rvalue(&ir->record); 113 return visit_continue; 114 } 115 116 ir_visitor_status 117 ir_rvalue_base_visitor::rvalue_visit(ir_assignment *ir) 118 { 119 handle_rvalue(&ir->rhs); 120 handle_rvalue(&ir->condition); 121 122 return visit_continue; 123 } 124 125 ir_visitor_status 126 ir_rvalue_base_visitor::rvalue_visit(ir_call *ir) 127 { 128 foreach_in_list_safe(ir_rvalue, param, &ir->actual_parameters) { 129 ir_rvalue *new_param = param; 130 handle_rvalue(&new_param); 131 132 if (new_param != param) { 133 param->replace_with(new_param); 134 } 135 } 136 return visit_continue; 137 } 138 139 ir_visitor_status 140 ir_rvalue_base_visitor::rvalue_visit(ir_discard *ir) 141 { 142 handle_rvalue(&ir->condition); 143 return visit_continue; 144 } 145 146 ir_visitor_status 147 ir_rvalue_base_visitor::rvalue_visit(ir_return *ir) 148 { 149 handle_rvalue(&ir->value); 150 return visit_continue; 151 } 152 153 ir_visitor_status 154 ir_rvalue_base_visitor::rvalue_visit(ir_if *ir) 155 { 156 handle_rvalue(&ir->condition); 157 return visit_continue; 158 } 159 160 ir_visitor_status 161 ir_rvalue_base_visitor::rvalue_visit(ir_emit_vertex *ir) 162 { 163 handle_rvalue(&ir->stream); 164 return visit_continue; 165 } 166 167 ir_visitor_status 168 ir_rvalue_base_visitor::rvalue_visit(ir_end_primitive *ir) 169 { 170 handle_rvalue(&ir->stream); 171 return visit_continue; 172 } 173 174 ir_visitor_status 175 ir_rvalue_visitor::visit_leave(ir_expression *ir) 176 { 177 return rvalue_visit(ir); 178 } 179 180 ir_visitor_status 181 ir_rvalue_visitor::visit_leave(ir_texture *ir) 182 { 183 return rvalue_visit(ir); 184 } 185 186 ir_visitor_status 187 ir_rvalue_visitor::visit_leave(ir_swizzle *ir) 188 { 189 return rvalue_visit(ir); 190 } 191 192 ir_visitor_status 193 ir_rvalue_visitor::visit_leave(ir_dereference_array *ir) 194 { 195 return rvalue_visit(ir); 196 } 197 198 ir_visitor_status 199 ir_rvalue_visitor::visit_leave(ir_dereference_record *ir) 200 { 201 return rvalue_visit(ir); 202 } 203 204 ir_visitor_status 205 ir_rvalue_visitor::visit_leave(ir_assignment *ir) 206 { 207 return rvalue_visit(ir); 208 } 209 210 ir_visitor_status 211 ir_rvalue_visitor::visit_leave(ir_call *ir) 212 { 213 return rvalue_visit(ir); 214 } 215 216 ir_visitor_status 217 ir_rvalue_visitor::visit_leave(ir_discard *ir) 218 { 219 return rvalue_visit(ir); 220 } 221 222 ir_visitor_status 223 ir_rvalue_visitor::visit_leave(ir_return *ir) 224 { 225 return rvalue_visit(ir); 226 } 227 228 ir_visitor_status 229 ir_rvalue_visitor::visit_leave(ir_if *ir) 230 { 231 return rvalue_visit(ir); 232 } 233 234 ir_visitor_status 235 ir_rvalue_visitor::visit_leave(ir_emit_vertex *ir) 236 { 237 return rvalue_visit(ir); 238 } 239 240 ir_visitor_status 241 ir_rvalue_visitor::visit_leave(ir_end_primitive *ir) 242 { 243 return rvalue_visit(ir); 244 } 245 246 ir_visitor_status 247 ir_rvalue_enter_visitor::visit_enter(ir_expression *ir) 248 { 249 return rvalue_visit(ir); 250 } 251 252 ir_visitor_status 253 ir_rvalue_enter_visitor::visit_enter(ir_texture *ir) 254 { 255 return rvalue_visit(ir); 256 } 257 258 ir_visitor_status 259 ir_rvalue_enter_visitor::visit_enter(ir_swizzle *ir) 260 { 261 return rvalue_visit(ir); 262 } 263 264 ir_visitor_status 265 ir_rvalue_enter_visitor::visit_enter(ir_dereference_array *ir) 266 { 267 return rvalue_visit(ir); 268 } 269 270 ir_visitor_status 271 ir_rvalue_enter_visitor::visit_enter(ir_dereference_record *ir) 272 { 273 return rvalue_visit(ir); 274 } 275 276 ir_visitor_status 277 ir_rvalue_enter_visitor::visit_enter(ir_assignment *ir) 278 { 279 return rvalue_visit(ir); 280 } 281 282 ir_visitor_status 283 ir_rvalue_enter_visitor::visit_enter(ir_call *ir) 284 { 285 return rvalue_visit(ir); 286 } 287 288 ir_visitor_status 289 ir_rvalue_enter_visitor::visit_enter(ir_discard *ir) 290 { 291 return rvalue_visit(ir); 292 } 293 294 ir_visitor_status 295 ir_rvalue_enter_visitor::visit_enter(ir_return *ir) 296 { 297 return rvalue_visit(ir); 298 } 299 300 ir_visitor_status 301 ir_rvalue_enter_visitor::visit_enter(ir_if *ir) 302 { 303 return rvalue_visit(ir); 304 } 305 306 ir_visitor_status 307 ir_rvalue_enter_visitor::visit_enter(ir_emit_vertex *ir) 308 { 309 return rvalue_visit(ir); 310 } 311 312 ir_visitor_status 313 ir_rvalue_enter_visitor::visit_enter(ir_end_primitive *ir) 314 { 315 return rvalue_visit(ir); 316 } 317
