IntelGPU backend: Code refactoring and optimization (#1434)

* IntelGPU backend: Code refactoring and optimization

* Update gen_func_def()

src/ngraph/runtime/intelgpu/intelgpu_op_custom_kernels.hpp

@@ -136,6 +136,12 @@ namespace ngraph
                                     bool is_reversed = false);
             std::vector<size_t>
                 generate_loops(codegen::CodeWriter& writer, const Shape& shape, bool is_begin);
+            void gen_func_def(codegen::CodeWriter& writer,
+                              const std::string& entry_point_name,
+                              const std::vector<std::string>& input_types,
+                              const std::vector<Shape>& input_shapes,
+                              const std::string& output_type,
+                              const Shape& output_shape);
         }
     }
 }

src/ngraph/runtime/intelgpu/unit_test.manifest

@@ -21,12 +21,9 @@ backwards_exp
 backwards_floor
 backwards_maxpool_n2_c1_hw5_3x3_str2_max
 backwards_maxpool_n4_c1_hw4_2x2_max
-backwards_minimum
 backwards_replace_slice
 backwards_reverse_sequence_n3_c2_h3
 backwards_reverse_sequence_n4d2c3h2w2
-backwards_select
-backwards_select_nested
 backwards_sigmoid
 backwards_sign
 backwards_slice