From c24c23d9ab66e9a1bf6bb3468cdfe39f22872362 Mon Sep 17 00:00:00 2001
From: Md Asghar Ahmad Shahid <md.asghar.ahmad.shahid@intel.com>
Date: Tue, 19 Aug 2025 09:27:20 +0530
Subject: [PATCH] [NFC][mlir][vector] Handle potential static cast assertion.
 (#152957)

In FoldArithToVectorOuterProduct pattern, static cast to vector type
causes assertion when a scalar type was encountered. It seems the author
meant to have a dyn_cast instead.

This NFC patch handles it by using dyn_cast.
---
 mlir/lib/Dialect/Vector/Transforms/VectorTransforms.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mlir/lib/Dialect/Vector/Transforms/VectorTransforms.cpp b/mlir/lib/Dialect/Vector/Transforms/VectorTransforms.cpp
index 2269a40ec8ef..023c4da7dffd 100644
--- a/mlir/lib/Dialect/Vector/Transforms/VectorTransforms.cpp
+++ b/mlir/lib/Dialect/Vector/Transforms/VectorTransforms.cpp
@@ -2274,7 +2274,7 @@ struct FoldArithToVectorOuterProduct : public OpRewritePattern<MulOpType> {
 
   LogicalResult matchAndRewrite(MulOpType mulOp,
                                 PatternRewriter &rewriter) const override {
-    auto resType = llvm::cast<VectorType>(mulOp.getResult().getType());
+    auto resType = llvm::dyn_cast<VectorType>(mulOp.getResult().getType());
     if (!resType)
       return failure();
     if (resType.getRank() != 2)