Don't match pattern against 1-d input in dilated conv pass.

PiperOrigin-RevId: 292220461
Change-Id: I8297e51fac26c61fa8f570bd6719097e4f983cb2
diff --git a/tensorflow/compiler/mlir/lite/transforms/dilated_conv.h b/tensorflow/compiler/mlir/lite/transforms/dilated_conv.h
index 5d9f8d0..c3d3df1 100644
--- a/tensorflow/compiler/mlir/lite/transforms/dilated_conv.h
+++ b/tensorflow/compiler/mlir/lite/transforms/dilated_conv.h
@@ -217,6 +217,9 @@
     if (stb_bs_attr.getValue({i}) != bts_bs_attr.getValue({i})) return {};
   }
 
+  // TODO(haoliang): support 1-D dilated conv.
+  if (stb_bs_attr.getNumElements() < 2) return {};
+
   int dilation_h_factor =
       stb_bs_attr.getValue({0}).cast<IntegerAttr>().getInt();
   int dilation_w_factor =