COMPIMID-553: MobileNet use case.

Change-Id: I1181abbd5785065f3d57e91844376a4b110938a9
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/110701
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/graph/nodes/BranchLayer.h b/arm_compute/graph/nodes/BranchLayer.h
index 3d13f5f..dd05315 100644
--- a/arm_compute/graph/nodes/BranchLayer.h
+++ b/arm_compute/graph/nodes/BranchLayer.h
@@ -64,6 +64,17 @@
         },
         std::move(rest_sub_graphs)...);
     }
+    /** Default Constructor
+     *
+     * @param[in] sub_graph Sub graph
+     */
+    template <typename... Ts>
+    BranchLayer(SubGraph &&sub_graph)
+        : _branch_merge_method(BranchMergeMethod::DEPTH_CONCATENATE), _sub_graphs()
+    {
+        /* TODO:(geopin01) Use traits to make sure variadic arguments are of SubGraph type */
+        _sub_graphs.push_back(arm_compute::support::cpp14::make_unique<SubGraph>(std::move(sub_graph)));
+    }
 
     // Inherited methods overriden:
     std::unique_ptr<arm_compute::IFunction> instantiate_node(GraphContext &ctx, ITensorObject *input, ITensorObject *output) override;