Fix Regression in Model PSS and PSR, add check for zero-size initializers (#825)

* check for the size of RAW data, skip if it's zero

Signed-off-by: bfilipek <[email protected]>

* Update onnxruntime/core/providers/openvino/backend_manager.cc

Co-authored-by: Copilot <[email protected]>

---------

Signed-off-by: bfilipek <[email protected]>
Co-authored-by: MayureshV1 <[email protected]>
Co-authored-by: Copilot <[email protected]>

Author: 3 people

onnxruntime/core/providers/openvino/backend_manager.cc

@@ -673,8 +673,10 @@ BackendManager::GetModelProtoFromFusedNode(const onnxruntime::Node& fused_node,
                                 << src_init->name()
                                 << ", data_type: " << src_init->data_type()
                                 << ", raw_data size: " << src_init->raw_data().size();
-
-          SetExternalDataFields(proto_init, src_init->raw_data().data(), src_init->raw_data().size());
+          if (src_init->raw_data().size() > 0)
+              SetExternalDataFields(proto_init, src_init->raw_data().data(), src_init->raw_data().size());
+          else
+              LOGS(logger, VERBOSE) << "Initializer has empty raw_data: skipping initializer '" << src_init->name() << "'...";
         } else if (onnxruntime::utils::HasExternalDataInMemory(*src_init)) {
           auto it_ext = external_initializers_offset_and_length.find(name);
           if (it_ext == external_initializers_offset_and_length.end()) {