5134 int LinearScanWalker::find_optimal_split_pos(Interval* it, int min_split_pos, int max_split_pos, bo…  in find_optimal_split_pos()  argument
5136   if (min_split_pos == max_split_pos) {  in find_optimal_split_pos()
5139     optimal_split_pos = min_split_pos;  in find_optimal_split_pos()
5142     assert(min_split_pos < max_split_pos, "must be true then");  in find_optimal_split_pos()
5143     assert(min_split_pos > 0, "cannot access min_split_pos - 1 otherwise");  in find_optimal_split_pos()
5148     BlockBegin* min_block = allocator()->block_of_op_with_id(min_split_pos - 1);  in find_optimal_split_pos()
5180         assert(loop_end_pos > min_split_pos, "invalid order");  in find_optimal_split_pos()
5220 void LinearScanWalker::split_before_usage(Interval* it, int min_split_pos, int max_split_pos) {  in split_before_usage()  argument
5222   TRACE_LINEAR_SCAN(2, tty->print_cr("      between %d and %d", min_split_pos, max_split_pos));  in split_before_usage()
5224   assert(it->from() < min_split_pos,         "cannot split at start of interval");  in split_before_usage()
5225   assert(current_position() < min_split_pos, "cannot split before current position");  in split_before_usage()
5226   assert(min_split_pos <= max_split_pos,     "invalid order");  in split_before_usage()
5229   int optimal_split_pos = find_optimal_split_pos(it, min_split_pos, max_split_pos, true);  in split_before_usage()
5231   assert(min_split_pos <= optimal_split_pos && optimal_split_pos <= max_split_pos, "out of range");  in split_before_usage()
5235 …if (optimal_split_pos == it->to() && it->next_usage(mustHaveRegister, min_split_pos) == max_jint) {  in split_before_usage()
5275   int min_split_pos = MAX2(it->previous_usage(shouldHaveRegister, max_split_pos) + 1, it->from());  in split_for_spilling()  local
5278   TRACE_LINEAR_SCAN(2, tty->print_cr("      between %d and %d", min_split_pos, max_split_pos));  in split_for_spilling()
5281   assert(it->from() <= min_split_pos,    "cannot split before start of interval");  in split_for_spilling()
5282   assert(min_split_pos <= max_split_pos, "invalid order");  in split_for_spilling()
5286   if (min_split_pos == it->from()) {  in split_for_spilling()
5292     allocator()->change_spill_state(it, min_split_pos);  in split_for_spilling()
5315     int optimal_split_pos = find_optimal_split_pos(it, min_split_pos, max_split_pos, false);  in split_for_spilling()
5317 …  assert(min_split_pos <= optimal_split_pos && optimal_split_pos <= max_split_pos, "out of range");  in split_for_spilling()
5352   int min_split_pos = current_position() + 1;  in split_stack_interval()  local
5355   split_before_usage(it, min_split_pos, max_split_pos);  in split_stack_interval()
5359 …int min_split_pos = MAX2(it->previous_usage(shouldHaveRegister, register_available_until), it->fro…  in split_when_partial_register_available()  local
5362   split_before_usage(it, min_split_pos, max_split_pos);  in split_when_partial_register_available()
5381     int min_split_pos = current_pos + 1;  in split_and_spill_interval()  local
5382     int max_split_pos = MIN2(it->next_usage(mustHaveRegister, min_split_pos), it->to());  in split_and_spill_interval()
5384     split_before_usage(it, min_split_pos, max_split_pos);  in split_and_spill_interval()