1478     IfOp combinedIf = rewriter.create<IfOp>(  in matchAndRewrite()  local
1480     rewriter.eraseBlock(&combinedIf.thenRegion().back());  in matchAndRewrite()
1485     combinedIf.thenRegion().getBlocks().splice(  in matchAndRewrite()
1486         combinedIf.thenRegion().getBlocks().begin(),  in matchAndRewrite()
1489     rewriter.mergeBlocks(nextIf.thenBlock(), combinedIf.thenBlock());  in matchAndRewrite()
1490     rewriter.setInsertionPointToEnd(combinedIf.thenBlock());  in matchAndRewrite()
1498     combinedIf.elseRegion().getBlocks().splice(  in matchAndRewrite()
1499         combinedIf.elseRegion().getBlocks().begin(),  in matchAndRewrite()
1503       if (combinedIf.elseRegion().empty()) {  in matchAndRewrite()
1504         combinedIf.elseRegion().getBlocks().splice(  in matchAndRewrite()
1505             combinedIf.elseRegion().getBlocks().begin(),  in matchAndRewrite()
1508         YieldOp elseYield = combinedIf.elseYield();  in matchAndRewrite()
1510         rewriter.mergeBlocks(nextIf.elseBlock(), combinedIf.elseBlock());  in matchAndRewrite()
1512         rewriter.setInsertionPointToEnd(combinedIf.elseBlock());  in matchAndRewrite()
1525     for (auto pair : llvm::enumerate(combinedIf.getResults())) {  in matchAndRewrite()