func.func @sigmoid(%arg0: tensor<2xf32>) -> tensor<2xf32> {
  %0 = mhlo.constant dense<5.000000e-01> : tensor<f32>
  %1 = mhlo.constant dense<2> : tensor<1xi64>
  %2 = mhlo.constant dense<5.000000e-01> : tensor<2xf32>
  %3 = mhlo.multiply %arg0, %2 : tensor<2xf32>
  %4 = "mhlo.tanh"(%3) : (tensor<2xf32>) -> tensor<2xf32>
  %5 = mhlo.multiply %4, %2 : tensor<2xf32>
  %6 = mhlo.add %5, %2 : tensor<2xf32>
  func.return %6 : tensor<2xf32>
}

  }
};

// Converts TensorFlow DiagPartOp to HLO ops using reduction on masked matrix.
// For a Rank-2 input, it creates the following ops:
//   %1 = "mhlo.iota"() {iota_dimension = 0 : i64}
//   %2 = "mhlo.iota"() {iota_dimension = 1 : i64}
//   %3 = "mhlo.compare"(%1, %2) {comparison_direction = "EQ"}
//   %4 = mhlo.constant dense<0.000000e+00> : tensor<f32>
//   %5 = "mhlo.broadcast"(%4)
//   %6 = "mhlo.select"(%3, %input, %5)