89     size_t hash_code = HashCode(instruction);  in Add()  local
90     size_t index = BucketIndex(hash_code);  in Add()
95     buckets_[index] = new (allocator_) Node(instruction, hash_code, buckets_[index]);  in Add()
102     size_t hash_code = HashCode(instruction);  in Lookup()  local
103     size_t index = BucketIndex(hash_code);  in Lookup()
106       if (node->GetHashCode() == hash_code) {  in Lookup()
118     size_t hash_code = HashCode(instruction);  in Contains()  local
119     size_t index = BucketIndex(hash_code);  in Contains()
191     Node(HInstruction* instruction, size_t hash_code, Node* next)  in Node()  argument
192         : instruction_(instruction), hash_code_(hash_code), next_(next) {}  in Node()
300     size_t hash_code = instruction->ComputeHashCode();  in HashCode()  local
309       return (hash_code << 1) | 0;  in HashCode()
311       return (hash_code << 1) | 1;  in HashCode()
316   size_t BucketIndex(size_t hash_code) const {  in BucketIndex()
317     return hash_code & (num_buckets_ - 1);  in BucketIndex()