833     BasicBlock* bb_next = GetBasicBlock(bb->fall_through);  in CombineBlocks()  local
834     DCHECK(!bb_next->catch_entry);  in CombineBlocks()
835     DCHECK_EQ(bb_next->predecessors.size(), 1u);  in CombineBlocks()
839     DCHECK_EQ(bb_next->first_mir_insn, throw_insn);  in CombineBlocks()
841     MIR* last_to_move = bb_next->last_mir_insn;  in CombineBlocks()
842     bb_next->RemoveMIRList(throw_insn, last_to_move);  in CombineBlocks()
849     bb_next->ErasePredecessor(bb->id);  in CombineBlocks()
871     bb->successor_block_list_type = bb_next->successor_block_list_type;  in CombineBlocks()
872     bb->successor_blocks.swap(bb_next->successor_blocks);  // Swap instead of copying.  in CombineBlocks()
873     bb_next->successor_block_list_type = kNotUsed;  in CombineBlocks()
875     bb->fall_through = bb_next->fall_through;  in CombineBlocks()
876     bb_next->fall_through = NullBasicBlockId;  in CombineBlocks()
877     bb->taken = bb_next->taken;  in CombineBlocks()
878     bb_next->taken = NullBasicBlockId;  in CombineBlocks()
884     bb->terminated_by_return = bb_next->terminated_by_return;  in CombineBlocks()
885     bb->conditional_branch = bb_next->conditional_branch;  in CombineBlocks()
886     bb->explicit_throw = bb_next->explicit_throw;  in CombineBlocks()
888     bb->use_lvn |= bb_next->use_lvn;  in CombineBlocks()
891     bb_next->data_flow_info = nullptr;  in CombineBlocks()
900     bb_next->block_type = kDead;  in CombineBlocks()
901     bb_next->data_flow_info = nullptr;  // Must be null for dead blocks. (Relied on by the GVN.)  in CombineBlocks()
902     block_id_map_.Overwrite(bb_next->id, bb->id);  in CombineBlocks()
906       child->UpdatePredecessor(bb_next->id, bb->id);  in CombineBlocks()