diff --git a/mlir/lib/Dialect/Affine/Transforms/LoopUnroll.cpp b/mlir/lib/Dialect/Affine/Transforms/LoopUnroll.cpp
--- a/mlir/lib/Dialect/Affine/Transforms/LoopUnroll.cpp
+++ b/mlir/lib/Dialect/Affine/Transforms/LoopUnroll.cpp
@@ -44,7 +44,9 @@
       : AffineLoopUnrollBase<LoopUnroll>(other),
         getUnrollFactor(other.getUnrollFactor) {}
   explicit LoopUnroll(
-      Optional<unsigned> unrollFactor = None, bool unrollUpToFactor = false, bool unrollFull = false, const std::function<unsigned(AffineForOp)> &getUnrollFactor = nullptr)
+      Optional<unsigned> unrollFactor = None, bool unrollUpToFactor = false,
+      bool unrollFull = false,
+      const std::function<unsigned(AffineForOp)> &getUnrollFactor = nullptr)
       : getUnrollFactor(getUnrollFactor) {
     if (unrollFactor)
       this->unrollFactor = *unrollFactor;