// CHECK: "mhlo.fft"(%[[SLICED]]) <{fft_length = dense<8> : tensor<1xi64>, fft_type = #mhlo<fft_type IRFFT>}> : (tensor<5xcomplex<f32>>
  %0 = "tf.IRFFT"(%arg0, %fftlength) : (tensor<8xcomplex<f32>>, tensor<1xi32>) -> tensor<8xf32>
  func.return %0 : tensor<8xf32>
}

// -----

// CHECK-LABEL: fft_1D_dynamic

    }

    int64_t expected_dim = fft_length;
    std::string fft_string = "RFFT";
    if (typeid(OpTy) == typeid(TF::IRFFTOp)) {
      expected_dim = fft_length / 2 + 1;
      fft_string = "IRFFT";
    }
    Location loc = op.getLoc();

    // The inner-most dim cannot be dynamic.
    if (input_ty.isDynamicDim(input_shape.size() - 1)) {
      return failure();
    }