IVGCVSW-3993 Add frontend and reference workload for ComparisonLayer

* Added frontend for ComparisonLayer
* Added RefComparisonWorkload
* Deprecated and removed Equal and Greater layers and workloads
* Updated tests to ensure backward compatibility

Signed-off-by: Aron Virginas-Tar <Aron.Virginas-Tar@arm.com>
Change-Id: Id50c880be1b567c531efff919c0c366d0a71cbe9

1 files changed, 102 insertions, 0 deletions

diff --git a/src/backends/reference/workloads/RefComparisonWorkload.cpp b/src/backends/reference/workloads/RefComparisonWorkload.cpp
new file mode 100644
index 0000000000..60446226be
--- /dev/null
+++ b/src/backends/reference/workloads/RefComparisonWorkload.cpp
@@ -0,0 +1,102 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "RefComparisonWorkload.hpp"
+
+#include "Decoders.hpp"
+#include "ElementwiseFunction.hpp"
+#include "Encoders.hpp"
+#include "RefWorkloadUtils.hpp"
+
+#include <Profiling.hpp>
+
+#include <armnn/TypesUtils.hpp>
+
+#include <functional>
+
+namespace armnn
+{
+
+RefComparisonWorkload::RefComparisonWorkload(const ComparisonQueueDescriptor& desc,
+                                             const WorkloadInfo& info)
+    : BaseWorkload<ComparisonQueueDescriptor>(desc, info)
+{}
+
+void RefComparisonWorkload::PostAllocationConfigure()
+{
+    const TensorInfo& inputInfo0 = GetTensorInfo(m_Data.m_Inputs[0]);
+    const TensorInfo& inputInfo1 = GetTensorInfo(m_Data.m_Inputs[1]);
+    const TensorInfo& outputInfo = GetTensorInfo(m_Data.m_Outputs[0]);
+
+    m_Input0 = MakeDecoder<InType>(inputInfo0);
+    m_Input1 = MakeDecoder<InType>(inputInfo1);
+
+    m_Output = MakeEncoder<OutType>(outputInfo);
+}
+
+void RefComparisonWorkload::Execute() const
+{
+    ARMNN_SCOPED_PROFILING_EVENT(Compute::CpuRef, "RefComparisonWorkload_Execute");
+
+    const TensorInfo& inputInfo0 = GetTensorInfo(m_Data.m_Inputs[0]);
+    const TensorInfo& inputInfo1 = GetTensorInfo(m_Data.m_Inputs[1]);
+    const TensorInfo& outputInfo = GetTensorInfo(m_Data.m_Outputs[0]);
+
+    const TensorShape& inShape0 = inputInfo0.GetShape();
+    const TensorShape& inShape1 = inputInfo1.GetShape();
+    const TensorShape& outShape = outputInfo.GetShape();
+
+    m_Input0->Reset(m_Data.m_Inputs[0]->Map());
+    m_Input1->Reset(m_Data.m_Inputs[1]->Map());
+    m_Output->Reset(m_Data.m_Outputs[0]->Map());
+
+    using EqualFunction          = ElementwiseFunction<std::equal_to<InType>>;
+    using GreaterFunction        = ElementwiseFunction<std::greater<InType>>;
+    using GreaterOrEqualFunction = ElementwiseFunction<std::greater_equal<InType>>;
+    using LessFunction           = ElementwiseFunction<std::less<InType>>;
+    using LessOrEqualFunction    = ElementwiseFunction<std::less_equal<InType>>;
+    using NotEqualFunction       = ElementwiseFunction<std::not_equal_to<InType>>;
+
+    switch (m_Data.m_Parameters.m_Operation)
+    {
+        case ComparisonOperation::Equal:
+        {
+            EqualFunction(inShape0, inShape1, outShape, *m_Input0, *m_Input1, *m_Output);
+            break;
+        }
+        case ComparisonOperation::Greater:
+        {
+            GreaterFunction(inShape0, inShape1, outShape, *m_Input0, *m_Input1, *m_Output);
+            break;
+        }
+        case ComparisonOperation::GreaterOrEqual:
+        {
+            GreaterOrEqualFunction(inShape0, inShape1, outShape, *m_Input0, *m_Input1, *m_Output);
+            break;
+        }
+        case ComparisonOperation::Less:
+        {
+            LessFunction(inShape0, inShape1, outShape, *m_Input0, *m_Input1, *m_Output);
+            break;
+        }
+        case ComparisonOperation::LessOrEqual:
+        {
+            LessOrEqualFunction(inShape0, inShape1, outShape, *m_Input0, *m_Input1, *m_Output);
+            break;
+        }
+        case ComparisonOperation::NotEqual:
+        {
+            NotEqualFunction(inShape0, inShape1, outShape, *m_Input0, *m_Input1, *m_Output);
+            break;
+        }
+        default:
+        {
+            throw InvalidArgumentException(std::string("Unsupported comparison operation ") +
+                GetComparisonOperationAsCString(m_Data.m_Parameters.m_Operation), CHECK_LOCATION());
+        }
+    }
+}
+
+} // namespace armnn