1 files changed, 80 insertions, 0 deletions
diff --git a/src/armnn/layers/ComparisonLayer.cpp b/src/armnn/layers/ComparisonLayer.cpp
new file mode 100644
index 0000000000..75518e580e
--- /dev/null
+++ b/src/armnn/layers/ComparisonLayer.cpp
@@ -0,0 +1,80 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "ComparisonLayer.hpp"
+
+#include "LayerCloneBase.hpp"
+
+#include <backendsCommon/WorkloadData.hpp>
+#include <backendsCommon/WorkloadFactory.hpp>
+
+#include <algorithm>
+
+namespace armnn
+{
+
+ComparisonLayer::ComparisonLayer(const ComparisonDescriptor& param, const char* name)
+    : LayerWithParameters(2, 1, LayerType::Comparison, param, name)
+{
+}
+
+std::unique_ptr<IWorkload> ComparisonLayer::CreateWorkload(const Graph& graph,
+                                                           const IWorkloadFactory& factory) const
+{
+    ComparisonQueueDescriptor descriptor;
+    return factory.CreateComparison(descriptor, PrepInfoAndDesc(descriptor, graph));
+}
+
+ComparisonLayer* ComparisonLayer::Clone(Graph& graph) const
+{
+    return CloneBase<ComparisonLayer>(graph, m_Param, GetName());
+}
+
+std::vector<TensorShape> ComparisonLayer::InferOutputShapes(const std::vector<TensorShape>& inputShapes) const
+{
+    BOOST_ASSERT(inputShapes.size() == 2);
+    const TensorShape& input0 = inputShapes[0];
+    const TensorShape& input1 = inputShapes[1];
+
+    BOOST_ASSERT(input0.GetNumDimensions() == input1.GetNumDimensions());
+    unsigned int numDims = input0.GetNumDimensions();
+
+    std::vector<unsigned int> dims(numDims);
+    for (unsigned int i = 0; i < numDims; i++)
+    {
+        unsigned int dim0 = input0[i];
+        unsigned int dim1 = input1[i];
+
+        BOOST_ASSERT_MSG(dim0 == dim1 || dim0 == 1 || dim1 == 1,
+                         "Dimensions should either match or one should be of size 1.");
+
+        dims[i] = std::max(dim0, dim1);
+    }
+
+    return std::vector<TensorShape>({ TensorShape(numDims, dims.data()) });
+}
+
+void ComparisonLayer::ValidateTensorShapesFromInputs()
+{
+    VerifyLayerConnections(2, CHECK_LOCATION());
+
+    std::vector<TensorShape> inferredShapes = InferOutputShapes({
+        GetInputSlot(0).GetConnection()->GetTensorInfo().GetShape(),
+        GetInputSlot(1).GetConnection()->GetTensorInfo().GetShape()
+    });
+    BOOST_ASSERT(inferredShapes.size() == 1);
+
+    ConditionalThrowIfNotEqual<LayerValidationException>(
+        "ComparisonLayer: TensorShape set on OutputSlot[0] does not match the inferred shape.",
+        GetOutputSlot(0).GetTensorInfo().GetShape(),
+        inferredShapes[0]);
+}
+
+void ComparisonLayer::Accept(ILayerVisitor& visitor) const
+{
+    visitor.VisitComparisonLayer(this, GetParameters(), GetName());
+}
+
+} // namespace armnn