From 3571d448969eeaddd44007c2133bb6751c64c838 Mon Sep 17 00:00:00 2001
From: Ilya Churaev <ilya.churaev@intel.com>
Date: Fri, 5 Jun 2020 13:36:35 +0300
Subject: [PATCH] Save the name of output data if we remove previous layer
 (#760)

* Save the name of output data if we remove previous layer

* Added test
---
 .../src/legacy_api/src/net_pass.cpp           |  5 ++++
 .../cnn_network/cnn_ngraph_impl_tests.cpp     | 28 +++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/inference-engine/src/legacy_api/src/net_pass.cpp b/inference-engine/src/legacy_api/src/net_pass.cpp
index 534467ddc..77c972cfe 100644
--- a/inference-engine/src/legacy_api/src/net_pass.cpp
+++ b/inference-engine/src/legacy_api/src/net_pass.cpp
@@ -298,6 +298,11 @@ void RemoveLayer(CNNLayerPtr& layer) {
 
     // transfer output connections into parent data
     CombineData(in_data, out_data);
+
+    // Save name for output data
+    if (out_data->getInputTo().empty()) {
+        in_data->setName(out_data->getName());
+    }
 }
 
 /************************************************************/
diff --git a/inference-engine/tests/functional/inference_engine/cnn_network/cnn_ngraph_impl_tests.cpp b/inference-engine/tests/functional/inference_engine/cnn_network/cnn_ngraph_impl_tests.cpp
index a1388035d..fce269a49 100644
--- a/inference-engine/tests/functional/inference_engine/cnn_network/cnn_ngraph_impl_tests.cpp
+++ b/inference-engine/tests/functional/inference_engine/cnn_network/cnn_ngraph_impl_tests.cpp
@@ -15,11 +15,13 @@
 #include <ie_util_internal.hpp>
 #include <ie_parameter.hpp>
 #include <ie_core.hpp>
+#include <net_pass.h>
 
 #include <ngraph/function.hpp>
 #include <ngraph/variant.hpp>
 #include <ngraph/op/maximum.hpp>
 #include <ngraph/op/constant.hpp>
+#include <ngraph/op/convert.hpp>
 #include <ngraph/op/parameter.hpp>
 #include <ngraph/op/relu.hpp>
 #include <ngraph/op/fused/prelu.hpp>
@@ -56,6 +58,32 @@ TEST(CNNNGraphImplTests, TestConvertNetwork) {
     ASSERT_EQ(cnnRefNet, cnnNet.getCNNNetwork());
 }
 
+TEST(CNNNGraphImplTests, TestConvertWithRemoveLastLayerNetwork) {
+    std::shared_ptr<ngraph::Function> ngraph;
+    {
+        ngraph::PartialShape shape({1, 3, 22, 22});
+        ngraph::element::Type type(ngraph::element::Type_t::i32);
+        auto param = std::make_shared<ngraph::op::Parameter>(type, shape);
+        param->set_friendly_name("param");
+        auto relu = std::make_shared<ngraph::op::Relu>(param);
+        relu->set_friendly_name("relu");
+        auto convert = std::make_shared<ngraph::op::Convert>(relu, ngraph::element::Type_t::i64);
+        convert->set_friendly_name("convert");
+        auto result = std::make_shared<ngraph::op::Result>(convert);
+
+        ngraph::ParameterVector params = {param};
+        ngraph::ResultVector results = {result};
+
+        ngraph = std::make_shared<ngraph::Function>(results, params);
+    }
+
+    InferenceEngine::details::CNNNetworkNGraphImpl cnnNet(ngraph);
+    InferenceEngine::ICNNNetwork& cnnRefNet = *cnnNet.getCNNNetwork();
+    // Remove convert layer
+    InferenceEngine::NetPass::ConvertPrecision(cnnRefNet, Precision::I64, Precision::I32);
+    ASSERT_NO_THROW(cloneNet(cnnRefNet));
+}
+
 TEST(CNNNGraphImplTests, TestResultWithNotEqualName) {
     std::shared_ptr<ngraph::Function> ngraph;
     {
-- 
2.34.1