This patch fixes: mlir/lib/Dialect/Vector/Transforms/VectorEmulateNarrowType.cpp:137:8: error: unused variable 'vectorType' [-Werror,-Wunused-variable] mlir/lib/Dialect/Vector/Transforms/VectorEmulateNarrowType.cpp:154:8: error: unused variable 'srcType' [-Werror,-Wunused-variable] mlir/lib/Dialect/Vector/Transforms/VectorEmulateNarrowType.cpp:155:8: error: unused variable 'destType' [-Werror,-Wunused-variable]