Add bfloat16 to make_constant builder (#3741)

src/ngraph/builder/make_constant.hpp

@@ -31,67 +31,75 @@ namespace ngraph
         {
             std::shared_ptr<Node> val = nullptr;
 
-            if (type == element::f32)
+#if defined(__GNUC__) && !(__GNUC__ == 4 && __GNUC_MINOR__ == 8)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic error "-Wswitch"
+#pragma GCC diagnostic error "-Wswitch-enum"
+#endif
+            switch (type)
             {
+            case element::Type_t::f32:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<float>{static_cast<float>(num)});
-            }
-            else if (type == element::f64)
-            {
+                break;
+            case element::Type_t::f64:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<double>{static_cast<double>(num)});
-            }
-            else if (type == element::f16)
-            {
+                break;
+            case element::Type_t::f16:
                 val = std::make_shared<ngraph::op::Constant>(
                     type,
                     ngraph::Shape{},
                     std::vector<ngraph::float16>{ngraph::float16(static_cast<float>(num))});
-            }
-            else if (type == element::i64)
-            {
+                break;
+            case element::Type_t::bf16:
+                val = std::make_shared<ngraph::op::Constant>(
+                    type,
+                    ngraph::Shape{},
+                    std::vector<ngraph::bfloat16>{ngraph::bfloat16(static_cast<float>(num))});
+                break;
+            case element::Type_t::i64:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<int64_t>{static_cast<int64_t>(num)});
-            }
-            else if (type == element::i32)
-            {
+                break;
+            case element::Type_t::i32:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<int32_t>{static_cast<int32_t>(num)});
-            }
-            else if (type == element::i16)
-            {
+                break;
+            case element::Type_t::i16:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<int16_t>{static_cast<int16_t>(num)});
-            }
-            else if (type == element::i8)
-            {
+                break;
+            case element::Type_t::i8:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<int8_t>{static_cast<int8_t>(num)});
-            }
-            else if (type == element::u64)
-            {
+                break;
+            case element::Type_t::u64:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<uint64_t>{static_cast<uint64_t>(num)});
-            }
-            else if (type == element::u32)
-            {
+                break;
+            case element::Type_t::u32:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<uint32_t>{static_cast<uint32_t>(num)});
-            }
-            else if (type == element::u16)
-            {
+                break;
+            case element::Type_t::u16:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<uint16_t>{static_cast<uint16_t>(num)});
-            }
-            else if (type == element::u8)
-            {
+                break;
+            case element::Type_t::u8:
                 val = std::make_shared<ngraph::op::Constant>(
                     type, ngraph::Shape{}, std::vector<uint8_t>{static_cast<uint8_t>(num)});
+                break;
+            case element::Type_t::dynamic:
+                throw ngraph_error("make_constant: Unsupported element type 'dynamic'");
+            case element::Type_t::boolean:
+                throw ngraph_error("make_constant: Unsupported element type 'boolean'");
+            case element::Type_t::undefined:
+                throw ngraph_error("make_constant: Unsupported element type 'undefined'");
             }
-            else
-            {
-                throw ngraph_error("make_constant: Unsupported element type");
-            }
+#if defined(__GNUC__) && !(__GNUC__ == 4 && __GNUC_MINOR__ == 8)
+#pragma GCC diagnostic pop
+#endif
 
             if (shape.size() > 0)
             {