| 343 | } |
| 344 | |
| 345 | void IRWriter::insertOpAtPos(const op_ptr_t& pos_op, Position pos, const op_ptr_t& new_op) { |
| 346 | // find the pos_op iter in region |
| 347 | auto& ops = cur_region_->ops(); |
| 348 | auto pos_op_iter = std::find(ops.begin(), ops.end(), pos_op); |
| 349 | MLLM_RT_ASSERT(pos_op_iter != ops.end()); |
| 350 | new_op->setBelongsTo(pos_op->belongsTo()); |
| 351 | |
| 352 | switch (pos) { |
| 353 | case AFTER: { |
| 354 | auto pre_op = *pos_op_iter; |
| 355 | pos_op_iter++; |
| 356 | auto next_op = (pos_op_iter != ops.end()) ? *pos_op_iter : nullptr; |
| 357 | |
| 358 | pre_op->setNextOp(new_op); |
| 359 | new_op->setPrevOp(pre_op); |
| 360 | if (next_op) next_op->setPrevOp(new_op); |
| 361 | |
| 362 | cur_op_iter_ = ops.insert(pos_op_iter, new_op); |
| 363 | break; |
| 364 | } |
| 365 | case BEFORE: { |
| 366 | auto next_op = *pos_op_iter; |
| 367 | op_ptr_t pre_op = nullptr; |
| 368 | if (pos_op_iter != ops.begin()) { |
| 369 | pos_op_iter--; |
| 370 | pre_op = *pos_op_iter; |
| 371 | } |
| 372 | |
| 373 | if (pre_op) pre_op->setNextOp(new_op); |
| 374 | new_op->setPrevOp(pre_op); |
| 375 | new_op->setNextOp(next_op); |
| 376 | if (next_op) next_op->setPrevOp(new_op); |
| 377 | |
| 378 | pos_op_iter = std::find(ops.begin(), ops.end(), next_op); |
| 379 | cur_op_iter_ = ops.insert(pos_op_iter, new_op); |
| 380 | break; |
| 381 | } |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | void IRWriter::insertOpAtLast(const op_ptr_t& new_op) { |
| 386 | MLLM_RT_ASSERT(new_op != nullptr); |