2 files changed, 13 insertions, 1 deletions
diff --git a/src/backends/cl/ClBackend.cpp b/src/backends/cl/ClBackend.cpp
index 2f9dfa9755..dfa5e7c777 100644
--- a/src/backends/cl/ClBackend.cpp
+++ b/src/backends/cl/ClBackend.cpp
@@ -80,4 +80,13 @@ IBackendInternal::ILayerSupportSharedPtr ClBackend::GetLayerSupport() const
     return layerSupport;
 }
 
+IBackendInternal::SubGraphUniquePtr ClBackend::OptimizeSubGraph(const SubGraph& subGraph,
+                                                                bool& optimizationAttempted) const
+{
+    // Not trying to optimize the given sub-graph
+    optimizationAttempted = false;
+
+    return SubGraphUniquePtr{};
+}
+
 } // namespace armnn
diff --git a/src/backends/cl/ClBackend.hpp b/src/backends/cl/ClBackend.hpp
index 84b5b9a9d2..8133ce49f6 100644
--- a/src/backends/cl/ClBackend.hpp
+++ b/src/backends/cl/ClBackend.hpp
@@ -30,6 +30,9 @@ public:
 
     IBackendInternal::Optimizations GetOptimizations() const override;
     IBackendInternal::ILayerSupportSharedPtr GetLayerSupport() const override;
+
+    IBackendInternal::SubGraphUniquePtr OptimizeSubGraph(const SubGraph& subGraph,
+                                                         bool& optimizationAttempted) const override;
 };
 
-} // namespace armnn
-\ No newline at end of file
+} // namespace armnn