38   explicit CommonDominator(HBasicBlock* block)  in CommonDominator()  argument
39       : dominator_(block), chain_length_(ChainLength(block)) {  in CommonDominator()
43   void Update(HBasicBlock* block) {  in Update()  argument
44     DCHECK(block != nullptr);  in Update()
46       dominator_ = block;  in Update()
47       chain_length_ = ChainLength(block);  in Update()
52     if (block == block2) {  in Update()
55     size_t chain_length = ChainLength(block);  in Update()
59       block = block->GetDominator();  in Update()
60       DCHECK(block != nullptr);  in Update()
67     while (block != block2) {  in Update()
69       block = block->GetDominator();  in Update()
70       DCHECK(block != nullptr);  in Update()
74     dominator_ = block;  in Update()
83   static size_t ChainLength(HBasicBlock* block) {  in ChainLength()  argument
85     while (block != nullptr) {  in ChainLength()
87       block = block->GetDominator();  in ChainLength()