func.func @concat_v2_1d_axis(%arg0: tensor<3x3xf32>, %arg1: tensor<3x3xf32>) -> tensor<3x6xf32> {
  // CHECK: "mhlo.concatenate"({{.*}}) <{dimension = 1 : i64}> : (tensor<3x3xf32>, tensor<3x3xf32>) -> tensor<3x6xf32>

  %axis = "tf.Const"() { value = dense<[1]> : tensor<1xi64> } : () -> tensor<1xi64>
  %1 = "tf.ConcatV2"(%arg0, %arg1, %axis) : (tensor<3x3xf32>, tensor<3x3xf32>, tensor<1xi64>) -> tensor<3x6xf32>
  func.return %1 : tensor<3x6xf32>
}

  %7 = "mhlo.abs"(%arg1) : (tensor<3xi32>) -> tensor<3xi32>
  %8 = mhlo.constant dense<1> : tensor<3xi32>
  %9 = mhlo.subtract %7, %8 : tensor<3xi32>
  %10 = "chlo.broadcast_add"(%6, %9) {broadcast_dimensions = array<i64: 1>} : (tensor<2x3xi32>, tensor<3xi32>) -> tensor<2x3xi32>
  %11 = "mhlo.negate"(%10) : (tensor<2x3xi32>) -> tensor<2x3xi32>
  %12 = "mhlo.abs"(%arg1) : (tensor<3xi32>) -> tensor<3xi32>

  %cst = arith.constant dense<[3, 4]> : tensor<2xi32>
  %cst_0 = arith.constant dense<1.000000e+00> : tensor<3x4xf32>
  %0 = "tfl.reshape"(%arg0, %cst) : (tensor<*xf32>, tensor<2xi32>) -> tensor<3x4xf32>
  %1 = "tfl.add"(%0, %cst_0) {fused_activation_function = "NONE"} : (tensor<3x4xf32>, tensor<3x4xf32>) -> tensor<3x4xf32>
  func.return %1 : tensor<3x4xf32>
// CHECK-LABEL: ReshapeAddUnknownShape

  %19 = "tf.StringLength"(%arg0) {device = "", unit = "BYTE"} : (tensor<1x!tf_type.string>) -> tensor<1xi32>
  %20 = "tf.ExpandDims"(%19, %7) {device = ""} : (tensor<1xi32>, tensor<i32>) -> tensor<1x1xi32>
  %21 = "tf.Cast"(%20) {Truncate = false, device = ""} : (tensor<1x1xi32>) -> tensor<1x1xi64>
  %22 = "tf.Reshape"(%21, %12) {device = ""} : (tensor<1x1xi64>, tensor<1xi64>) -> tensor<1xi64>