Fix bilinear_tensor_product_op in debug mode.

Author: qingqing01

paddle/operators/bilinear_tensor_product_op.h

@@ -63,6 +63,7 @@ class BilinearTensorProductKernel : public framework::OpKernel<T> {
       math::gemm<Place, T>(ctx.device_context(), CblasNoTrans, CblasNoTrans,
                            batch_size, y_dim, x_dim, 1, x->data<T>(),
                            weight_mat.data<T>(), 0, left_mul.data<T>());
+      Eigen::array<int, 2> shape({{static_cast<int>(out->dims()[0]), 1}});
       output_col_vec.device(place) =
           (left_mul_mat * y_mat).sum(Eigen::DSizes<int, 1>(1));
     }
@@ -174,7 +175,7 @@ class BilinearTensorProductGradKernel : public framework::OpKernel<T> {
     // Caculate the gradient of Input(Bias).
     if (d_bias) {
       d_bias->mutable_data<T>(ctx.GetPlace());
-      auto d_bias_mat = EigenMatrix<T>::From(*d_bias);
+      auto d_bias_mat = framework::EigenVector<T>::Flatten(*d_bias);
       d_bias_mat.device(place) = d_out_mat.sum(Eigen::DSizes<int, 1>(0));
     }
   }