87   void RegisterBlock(BasicBlock* blk) {  in RegisterBlock()  argument
88     assert(blk->begin() != blk->end() &&  in RegisterBlock()
90     assert(blk->tail()->IsBlockTerminator() &&  in RegisterBlock()
92     uint32_t blk_id = blk->id();  in RegisterBlock()
93     id2block_[blk_id] = blk;  in RegisterBlock()
94     AddEdges(blk);  in RegisterBlock()
98   void ForgetBlock(const BasicBlock* blk) {  in ForgetBlock()  argument
99     id2block_.erase(blk->id());  in ForgetBlock()
100     label2preds_.erase(blk->id());  in ForgetBlock()
101     RemoveSuccessorEdges(blk);  in ForgetBlock()
113   void AddEdges(BasicBlock* blk);