IVGCVSW-4483 Remove boost::polymorphic_downcast

 * exchange boost::polymorphic_downcast with armnn::PolymorphicDowncast
 * remove unnecessary includes of boost::polymorphic_downcast

Signed-off-by: Jan Eilers <jan.eilers@arm.com>
Change-Id: Ie603fb82860fe05fee547dc78073230cc62b2e1f

1 files changed, 6 insertions, 5 deletions

diff --git a/src/armnn/Network.cpp b/src/armnn/Network.cpp
index ac5159a855..c2bf27aa9b 100644
--- a/src/armnn/Network.cpp
+++ b/src/armnn/Network.cpp
@@ -24,6 +24,7 @@
 #include <armnn/Logging.hpp>
 #include <armnn/utility/Assert.hpp>
 #include <armnn/utility/IgnoreUnused.hpp>
+#include <armnn/utility/PolymorphicDowncast.hpp>
 
 #include <ProfilingService.hpp>
 
@@ -53,12 +54,12 @@ armnn::INetworkPtr INetwork::Create()
 
 void INetwork::Destroy(INetwork* network)
 {
-    delete boost::polymorphic_downcast<Network*>(network);
+    delete PolymorphicDowncast<Network*>(network);
 }
 
 void IOptimizedNetwork::Destroy(IOptimizedNetwork* network)
 {
-    delete boost::polymorphic_downcast<OptimizedNetwork*>(network);
+    delete PolymorphicDowncast<OptimizedNetwork*>(network);
 }
 
 Status OptimizedNetwork::PrintGraph()
@@ -149,7 +150,7 @@ bool CheckScaleSetOnQuantizedType(Layer* layer, Optional<std::vector<std::string
 template <typename LayerT>
 LayerT* ConvertBf16ToFp32Weight(Layer* l)
 {
-    LayerT* layer = boost::polymorphic_downcast<LayerT*>(l);
+    LayerT* layer = PolymorphicDowncast<LayerT*>(l);
     if ((layer->GetType() == LayerType::Convolution2d || layer->GetType() == LayerType::FullyConnected)
          && layer->m_Weight)
     {
@@ -1015,12 +1016,12 @@ IOptimizedNetworkPtr Optimize(const INetwork& inNetwork,
         throw InvalidArgumentException("BFloat16 and Float16 optimization cannot be enabled at the same time.");
     }
 
-    const Network& network = *boost::polymorphic_downcast<const Network*>(&inNetwork);
+    const Network& network = *PolymorphicDowncast<const Network*>(&inNetwork);
     std::unique_ptr<Graph> graph = std::make_unique<Graph>(network.GetGraph());
 
     auto optNet = IOptimizedNetworkPtr(new OptimizedNetwork(std::move(graph)), &IOptimizedNetwork::Destroy);
 
-    OptimizedNetwork* optNetObjPtr = boost::polymorphic_downcast<OptimizedNetwork*>(optNet.get());
+    OptimizedNetwork* optNetObjPtr = PolymorphicDowncast<OptimizedNetwork*>(optNet.get());
 
     // Get the optimized graph
     Graph& optGraph = optNetObjPtr->GetGraph();