[mlir] Fix a warning

This patch fixes:

  mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp:947:13:
  error: variable 'distributedDim' set but not used
  [-Werror,-Wunused-but-set-variable]

diff --git a/mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp b/mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp
index f60bae6..07e608a 100644 (file)
--- a/mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp
+++ b/mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp
@@ -954,6 +954,7 @@ struct WarpOpExtract : public OpRewritePattern<WarpExecuteOnLane0Op> {
       }
     }
     assert(distributedDim != -1 && "could not find distributed dimension");
+    (void)distributedDim;
 
     // Yield source vector from warp op.
     SmallVector<int64_t> newDistributedShape(extractSrcType.getShape().begin(),