Merge pull request #20647 from rogday:resize_concat_optimization

Fix resize+concat optimization

* fix resize+concat optimization

* add comment and fix indentation

modules/dnn/src/layers/resize_layer.cpp

@@ -111,7 +111,14 @@ public:
         internals_arr.getMatVector(internals);
 
         if (outHeight == inputs[0].size[2] && outWidth == inputs[0].size[3])
+        {
+            // outputs[0] = inputs[0] doesn't work due to BlobManager optimizations
+            if (inputs[0].data != outputs[0].data)
+            {
+                inputs[0].copyTo(outputs[0]);
+            }
             return;
+        }
 
         Mat& inp = inputs[0];
         Mat& out = outputs[0];

modules/dnn/test/test_tf_importer.cpp

@@ -1125,6 +1125,11 @@ TEST_P(Test_TensorFlow_layers, resize_bilinear_down)
     runTensorFlowNet("resize_bilinear_down");
 }
 
+TEST_P(Test_TensorFlow_layers, resize_concat_optimization)
+{
+    runTensorFlowNet("resize_concat_optimization");
+}
+
 TEST_P(Test_TensorFlow_layers, tf2_dense)
 {
     runTensorFlowNet("tf2_dense");