"std::numeric_limits<double>::quiet_NaN())">;

class GetI64ScalarElementsAttr<int value> :
  NativeCodeCall<"GetI64ElementsAttr({" # value # "}, &$_builder)">;

class GetF32Scalar<int value> :
  NativeCodeCall<"GetF32Scalar(&$_builder, " # value # ")">;

def TrueBoolAttr : AttrConstraint<CPred<"$_self.cast<::mlir::BoolAttr>().getValue()">>;

def CreateTFShapeOp : NativeCodeCall<

  TensorType ty =
      tensorflow::GetTypeFromTFTensorShape({size}, builder->getIntegerType(64));
  return DenseIntElementsAttr::get(ty, vals);
}

// Return an Attr representation of the value.
static DenseElementsAttr GetF32Scalar(OpBuilder *builder, float value) {
  return DenseElementsAttr::get(
      tensorflow::GetTypeFromTFTensorShape({}, builder->getF32Type()),
      FloatAttr::get(builder->getF32Type(), value));
}