426         merge = new MachMergeNode(def);

   426         merge = new MachMergeNode(def);

   427 

   427 

   428         // Insert the merge node into the block before the first use.

   428         // Insert the merge node into the block before the first use.

   429         uint use_index = block->find_node(reg2defuse.at(reg).first_use());

   429         uint use_index = block->find_node(reg2defuse.at(reg).first_use());

   430         block->insert_node(merge, use_index++);

   430         block->insert_node(merge, use_index++);

   431 

   432 

   432         // Let the allocator know about the new node, use the same lrg

   433         // Let the allocator know about the new node, use the same lrg

   433         _lrg_map.extend(merge->_idx, lrg);

   434         _lrg_map.extend(merge->_idx, lrg);

   434         blk_adjust++;

   435         blk_adjust++;

   435 

   436