mlir/linalg: improve debugging in LinalgTransformOps

Make use of notifyMatchFailure in one place.

Signed-off-by: Ramkumar Ramachandra <r@artagnon.com>
Differential Revision: https://reviews.llvm.org/D139191

diff --git a/mlir/lib/Dialect/Linalg/TransformOps/LinalgTransformOps.cpp b/mlir/lib/Dialect/Linalg/TransformOps/LinalgTransformOps.cpp
index 4bfa5b4..98734ba 100644 (file)
--- a/mlir/lib/Dialect/Linalg/TransformOps/LinalgTransformOps.cpp
+++ b/mlir/lib/Dialect/Linalg/TransformOps/LinalgTransformOps.cpp
@@ -1804,7 +1804,7 @@ struct VectorizationPattern : public RewritePattern {
                                 PatternRewriter &rewriter) const override {
     LinalgOp linalgOp = dyn_cast<LinalgOp>(op);
     if (!linalgOp)
-      return failure();
+      return rewriter.notifyMatchFailure(op, "expected Linalg Op");
     return vectorize(rewriter, linalgOp);
   }
 };