537   void TraceConnect(Node* node, BasicBlock* block, BasicBlock* succ) {  in TraceConnect()  argument
539     if (succ == nullptr) {  in TraceConnect()
544             node->op()->mnemonic(), block->id().ToInt(), succ->id().ToInt());  in TraceConnect()
758         BasicBlock* succ = frame->block->SuccessorAt(frame->index++);  in ComputeAndInsertSpecialRPO()  local
759         if (succ->rpo_number() == kBlockVisited1) continue;  in ComputeAndInsertSpecialRPO()
760         if (succ->rpo_number() == kBlockOnStack) {  in ComputeAndInsertSpecialRPO()
763           if (!HasLoopNumber(succ)) {  in ComputeAndInsertSpecialRPO()
765             SetLoopNumber(succ, num_loops++);  in ComputeAndInsertSpecialRPO()
769           DCHECK(succ->rpo_number() == kBlockUnvisited1);  in ComputeAndInsertSpecialRPO()
770           stack_depth = Push(stack_, stack_depth, succ, kBlockUnvisited1);  in ComputeAndInsertSpecialRPO()
799         BasicBlock* succ = nullptr;  in ComputeAndInsertSpecialRPO()  local
803           succ = block->SuccessorAt(frame->index++);  in ComputeAndInsertSpecialRPO()
826             succ = info->outgoing->at(outgoing_index);  in ComputeAndInsertSpecialRPO()
831         if (succ != nullptr) {  in ComputeAndInsertSpecialRPO()
833           if (succ->rpo_number() == kBlockOnStack) continue;  in ComputeAndInsertSpecialRPO()
834           if (succ->rpo_number() == kBlockVisited2) continue;  in ComputeAndInsertSpecialRPO()
835           DCHECK(succ->rpo_number() == kBlockUnvisited2);  in ComputeAndInsertSpecialRPO()
836           if (loop != nullptr && !loop->members->Contains(succ->id().ToInt())) {  in ComputeAndInsertSpecialRPO()
839             loop->AddOutgoing(zone_, succ);  in ComputeAndInsertSpecialRPO()
842             stack_depth = Push(stack_, stack_depth, succ, kBlockUnvisited2);  in ComputeAndInsertSpecialRPO()
843             if (HasLoopNumber(succ)) {  in ComputeAndInsertSpecialRPO()
845               DCHECK(GetLoopNumber(succ) < num_loops);  in ComputeAndInsertSpecialRPO()
846               LoopInfo* next = &loops_[GetLoopNumber(succ)];  in ComputeAndInsertSpecialRPO()