367       max_rpo = block->rpo_number_;  in Pre()
521     while (hoist_block != NULL && hoist_block->rpo_number_ >= min_rpo) {  in Pre()
751       l->block->rpo_number_ = static_cast<int>(final_order->size());  in Serialize()
774   if (child->rpo_number_ == unvisited) {  in Push()
777     child->rpo_number_ = kBlockOnStack;  in Push()
856       PrintF(" range: [%d, %d)", block->rpo_number_, block->loop_end_);  in PrintRPO()
873     DCHECK(header->rpo_number_ >= 0);  in VerifySpecialRPO()
874     DCHECK(header->rpo_number_ < static_cast<int>(order->size()));  in VerifySpecialRPO()
877     DCHECK(header->loop_end_ > header->rpo_number_);  in VerifySpecialRPO()
890       DCHECK(l->block->rpo_number_ == links + loop->header->rpo_number_);  in VerifySpecialRPO()
896     DCHECK(links == (header->loop_end_ - header->rpo_number_));  in VerifySpecialRPO()
903       DCHECK(block->rpo_number_ == j);  in VerifySpecialRPO()
904       if (j < header->rpo_number_ || j >= header->loop_end_) {  in VerifySpecialRPO()
937   CHECK_EQ(kBlockUnvisited1, schedule->start()->rpo_number_);  in ComputeSpecialRPO()
957       if (succ->rpo_number_ == kBlockVisited1) continue;  in ComputeSpecialRPO()
958       if (succ->rpo_number_ == kBlockOnStack) {  in ComputeSpecialRPO()
968         DCHECK(succ->rpo_number_ == kBlockUnvisited1);  in ComputeSpecialRPO()
974       frame->block->rpo_number_ = kBlockVisited1;  in ComputeSpecialRPO()
1006         if (block->rpo_number_ == kBlockOnStack) {  in ComputeSpecialRPO()
1012           block->rpo_number_ = kBlockVisited2;  in ComputeSpecialRPO()
1033         if (succ->rpo_number_ == kBlockOnStack) continue;  in ComputeSpecialRPO()
1034         if (succ->rpo_number_ == kBlockVisited2) continue;  in ComputeSpecialRPO()
1035         DCHECK(succ->rpo_number_ == kBlockUnvisited2);  in ComputeSpecialRPO()
1068           block->rpo_number_ = kBlockVisited2;  in ComputeSpecialRPO()
1093                                        : end->block->rpo_number_;  in ComputeSpecialRPO()
1099              current->rpo_number_ >= current_header->loop_end_) {  in ComputeSpecialRPO()