IVGCVSW-1804 : Add Subtraction layer types and placeholders

Change-Id: Ib9a477e5ce590df74ba05fece77258b9204f6523

2 files changed, 58 insertions, 0 deletions

diff --git a/src/armnn/layers/SubtractionLayer.cpp b/src/armnn/layers/SubtractionLayer.cpp
new file mode 100644
index 0000000000..6239868b11
--- /dev/null
+++ b/src/armnn/layers/SubtractionLayer.cpp
@@ -0,0 +1,33 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#include "SubtractionLayer.hpp"
+
+#include "LayerCloneBase.hpp"
+
+#include <armnn/TypesUtils.hpp>
+#include <backends/WorkloadData.hpp>
+#include <backends/WorkloadFactory.hpp>
+
+namespace armnn
+{
+
+SubtractionLayer::SubtractionLayer(const char* name)
+    : ArithmeticBaseLayer(2, 1, LayerType::Subtraction, name)
+{
+}
+
+std::unique_ptr<IWorkload> SubtractionLayer::CreateWorkload(const Graph& graph,
+                                                            const IWorkloadFactory& factory) const
+{
+    SubtractionQueueDescriptor descriptor;
+    return factory.CreateSubtraction(descriptor, PrepInfoAndDesc(descriptor, graph));
+}
+
+SubtractionLayer* SubtractionLayer::Clone(Graph& graph) const
+{
+    return CloneBase<SubtractionLayer>(graph, GetName());
+}
+
+} // namespace armnn
diff --git a/src/armnn/layers/SubtractionLayer.hpp b/src/armnn/layers/SubtractionLayer.hpp
new file mode 100644
index 0000000000..ac02580200
--- /dev/null
+++ b/src/armnn/layers/SubtractionLayer.hpp
@@ -0,0 +1,25 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include "ArithmeticBaseLayer.hpp"
+
+namespace armnn
+{
+
+class SubtractionLayer : public ArithmeticBaseLayer
+{
+public:
+    virtual std::unique_ptr<IWorkload> CreateWorkload(const Graph& graph,
+                                                      const IWorkloadFactory& factory) const override;
+
+    SubtractionLayer* Clone(Graph& graph) const override;
+
+protected:
+    SubtractionLayer(const char* name);
+    ~SubtractionLayer() = default;
+};
+
+} // namespace