[TF FE] Feat: implement complex type support for select (#28677)

**Overview:**
- This pull request fixes #23243.

**Testing:**
- Tested the implementation & verified the results.

![Screenshot from 2025-01-25
14-21-47](https://github.com/user-attachments/assets/0cab7b27-727e-4085-8719-fda318eade16)

- No dependencies on other pull requests.
- TODO: Improve the test cases.

**CC:**
- @rkazants

---------

Signed-off-by: 11happy <soni5happy@gmail.com>
Co-authored-by: Roman Kazantsev <roman.kazantsev@intel.com>

src/frontends/tensorflow_common/src/op/select.cpp

@@ -5,6 +5,7 @@
 #include "openvino/op/select.hpp"
 
 #include "common_op_table.hpp"
+#include "helper_ops/complex_type_mark.hpp"
 #include "openvino/op/broadcast.hpp"
 #include "openvino/op/concat.hpp"
 #include "openvino/op/constant.hpp"
@@ -54,10 +55,25 @@ OutputVector translate_select_op(const NodeContext& node) {
     // 1. Either the same shape (in which case the select is elementwise), or
     // 2. condition must be Rank 1 and match over the first dimension, or
     // 3. condition is scalar
-    default_op_checks(node, 3, {"Select", "SELECT"});
+    default_op_checks(node, 3, {"Select", "SELECT"}, true);
     auto condition = node.get_input(0);
     auto x = node.get_input(1);
     auto y = node.get_input(2);
+    auto complex_type_mark_x = as_type_ptr<ComplexTypeMark>(x.get_node_shared_ptr());
+    auto complex_type_mark_y = as_type_ptr<ComplexTypeMark>(y.get_node_shared_ptr());
+
+    auto is_complex = (complex_type_mark_x || complex_type_mark_y);
+    element::Type complex_part_type;
+
+    if (complex_type_mark_x) {
+        x = complex_type_mark_x->input_value(0);
+        complex_part_type = complex_type_mark_x->get_complex_part_type();
+    }
+
+    if (complex_type_mark_y) {
+        y = complex_type_mark_y->input_value(0);
+        complex_part_type = complex_type_mark_y->get_complex_part_type();
+    }
 
     // compute number of dimensions to unsqueeze the condition
     auto cond_rank = compute_subgraph_scalar_rank(condition, element::i32);
@@ -78,7 +94,14 @@ OutputVector translate_select_op(const NodeContext& node) {
     auto const_0 = make_shared<v0::Constant>(element::i32, Shape{1}, 0);
     prep_cond = make_shared<v0::Squeeze>(prep_cond, const_0);
 
-    return translate_select_base_op(node, prep_cond, x, y);
+    auto result = translate_select_base_op(node, prep_cond, x, y);
+    if (is_complex) {
+        auto complex_result = make_shared<ComplexTypeMark>(result[0].get_node_shared_ptr(), complex_part_type);
+        return {complex_result->output(0)};
+
+    } else {
+        return result;
+    }
 }
 }  // namespace op
 }  // namespace tensorflow

tests/layer_tests/tensorflow_tests/test_tf_Select.py

@@ -52,3 +52,54 @@ def test_select_basic(self, params, ie_device, precision, ir_version, temp_dir,
         self._test(*self.create_select_net(**params),
                    ie_device, precision, ir_version, temp_dir=temp_dir,
                    use_legacy_frontend=use_legacy_frontend)
+
+class TestComplexSelect(CommonTFLayerTest):
+    def _prepare_input(self, inputs_info):
+        rng = np.random.default_rng()
+        assert 'cond:0' in inputs_info, "Test error: inputs_info must contain `cond`"
+        assert 'x_real:0' in inputs_info, "Test error: inputs_info must contain `x_real`"
+        assert 'x_imag:0' in inputs_info, "Test error: inputs_info must contain `x_imag`"
+        assert 'y_real:0' in inputs_info, "Test error: inputs_info must contain `y_real`"
+        assert 'y_imag:0' in inputs_info, "Test error: inputs_info must contain `y_imag`"
+        cond_shape = inputs_info['cond:0']
+        inputs_data = {}
+        inputs_data['cond:0'] = np.random.randint(0, 2, cond_shape).astype(bool)
+        for part in ['x_real:0', 'x_imag:0', 'y_real:0', 'y_imag:0']:
+            inputs_data[part] = 4 * rng.random(inputs_info[part]).astype(np.float32) - 2
+        return inputs_data
+
+    def create_complex_select_net(self, cond_shape, x_shape, y_shape):
+        tf.compat.v1.reset_default_graph()
+        # Create the graph and model
+        with tf.compat.v1.Session() as sess:
+            cond = tf.compat.v1.placeholder(tf.bool, cond_shape, 'cond')
+            x_real = tf.compat.v1.placeholder(tf.float32, x_shape, 'x_real')
+            x_imag = tf.compat.v1.placeholder(tf.float32, x_shape, 'x_imag')
+            y_real = tf.compat.v1.placeholder(tf.float32, y_shape, 'y_real')
+            y_imag = tf.compat.v1.placeholder(tf.float32, y_shape, 'y_imag')
+            complex_x = tf.raw_ops.Complex(real=x_real, imag=x_imag)
+            complex_y = tf.raw_ops.Complex(real=y_real, imag=y_imag)
+            complex_select = tf.raw_ops.Select(condition=cond, x=complex_x, y=complex_y)
+            tf.raw_ops.Real(input=complex_select)
+            tf.raw_ops.Imag(input=complex_select)
+            tf.compat.v1.global_variables_initializer()
+            tf_net = sess.graph_def
+        return tf_net, None
+
+    test_data_basic = [
+        dict(cond_shape=[], x_shape=[], y_shape=[]),
+        dict(cond_shape=[], x_shape=[3, 2, 4], y_shape=[3, 2, 4]),
+        dict(cond_shape=[2, 3, 4], x_shape=[2, 3, 4], y_shape=[2, 3, 4]),
+    ]
+
+    @pytest.mark.parametrize("params", test_data_basic)
+    @pytest.mark.precommit
+    @pytest.mark.nightly
+
+    def test_complex_select(self, params, ie_device, precision, ir_version, temp_dir,
+                                  use_legacy_frontend):
+        if use_legacy_frontend:
+            pytest.skip("Select tests are not passing for the legacy frontend.")
+        self._test(*self.create_complex_select_net(**params),
+                   ie_device, precision, ir_version, temp_dir=temp_dir,
+                   use_legacy_frontend=use_legacy_frontend)