473   Block *leaderBlock = leaderData.block, *mergeBlock = blockData.block;  in addToCluster()  local
474   if (leaderBlock->getArgumentTypes() != mergeBlock->getArgumentTypes())  in addToCluster()
479   auto lhsIt = leaderBlock->begin(), lhsE = leaderBlock->end();  in addToCluster()
500       bool lhsIsInBlock = lhsOperand.getParentBlock() == leaderBlock;  in addToCluster()
524         lhsIt->isUsedOutsideOfBlock(leaderBlock)) {  in addToCluster()
554   Block *leaderBlock = leaderData.block;  in merge()  local
561     if (!ableToUpdatePredOperands(leaderBlock) ||  in merge()
569     blockIterators.push_back(leaderBlock->begin());  in merge()
591           operand.set(leaderBlock->addArgument(operand.get().getType()));  in merge()
604     updatePredecessors(leaderBlock, /*clusterIndex=*/0);  in merge()
611     block->replaceAllUsesWith(leaderBlock);  in merge()