Add L2Normalize layer node to Graph API

Signed-off-by: thecha01 <theo.charalambous@arm.com>
Change-Id: I5cd26a8829060563d63d8c53e5148631ee053eca
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3912
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

3 files changed, 81 insertions, 0 deletions

diff --git a/arm_compute/graph/nodes/L2NormalizeLayerNode.h b/arm_compute/graph/nodes/L2NormalizeLayerNode.h
new file mode 100644
index 0000000000..8edc5b0bf3
--- /dev/null
+++ b/arm_compute/graph/nodes/L2NormalizeLayerNode.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2020 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ARM_COMPUTE_GRAPH_L2_NORMALIZE_LAYER_NODE_H
+#define ARM_COMPUTE_GRAPH_L2_NORMALIZE_LAYER_NODE_H
+
+#include "arm_compute/graph/INode.h"
+
+namespace arm_compute
+{
+namespace graph
+{
+/** L2Normalize Layer node */
+class L2NormalizeLayerNode final : public INode
+{
+public:
+    /** Constructor
+     *
+     */
+    L2NormalizeLayerNode();
+
+    /** Constructor
+     *
+     * @param[in] axis Axis to perform normalization on
+     */
+    L2NormalizeLayerNode(int axis);
+
+    /** Constructor
+     *
+     * @param[in] axis    Axis to perform normalization on
+     * @param[in] epsilon Lower bound value for the normalization
+     */
+    L2NormalizeLayerNode(int axis, float epsilon);
+
+    /** axis accessors
+     *
+     * @return Axis to perform normalization on
+     */
+    int axis() const;
+
+    /** epsilon accessors
+     *
+     * @return Lower bound value for the normalization
+     */
+    float epsilon() const;
+
+    // Inherited overridden methods:
+    NodeType         type() const override;
+    bool             forward_descriptors() override;
+    TensorDescriptor configure_output(size_t idx) const override;
+    void accept(INodeVisitor &v) override;
+
+private:
+    int   _axis;
+    float _epsilon;
+};
+} // namespace graph
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_GRAPH_L2_NORMALIZE_LAYER_NODE_H */
diff --git a/arm_compute/graph/nodes/Nodes.h b/arm_compute/graph/nodes/Nodes.h
index 2b400a9140..967b65ff9c 100644
--- a/arm_compute/graph/nodes/Nodes.h
+++ b/arm_compute/graph/nodes/Nodes.h
@@ -46,6 +46,7 @@
 #include "arm_compute/graph/nodes/FusedDepthwiseConvolutionBatchNormalizationNode.h"
 #include "arm_compute/graph/nodes/GenerateProposalsLayerNode.h"
 #include "arm_compute/graph/nodes/InputNode.h"
+#include "arm_compute/graph/nodes/L2NormalizeLayerNode.h"
 #include "arm_compute/graph/nodes/NormalizationLayerNode.h"
 #include "arm_compute/graph/nodes/NormalizePlanarYUVLayerNode.h"
 #include "arm_compute/graph/nodes/OutputNode.h"
diff --git a/arm_compute/graph/nodes/NodesFwd.h b/arm_compute/graph/nodes/NodesFwd.h
index 8692476a09..9326d4ff79 100644
--- a/arm_compute/graph/nodes/NodesFwd.h
+++ b/arm_compute/graph/nodes/NodesFwd.h
@@ -52,6 +52,7 @@ class FusedConvolutionBatchNormalizationNode;
 class FusedDepthwiseConvolutionBatchNormalizationNode;
 class GenerateProposalsLayerNode;
 class InputNode;
+class L2NormalizeLayerNode;
 class NormalizationLayerNode;
 class NormalizePlanarYUVLayerNode;
 class OutputNode;