IVGCVSW-2365 Add Reference Equal Workload Implementation

 * Add reference equal workload
 * Add Reference Workload Unit Test

Change-Id: If2848e7dde4248566b99d91726d08143c40ff80d
diff --git a/src/backends/backendsCommon/StringMapping.hpp b/src/backends/backendsCommon/StringMapping.hpp
index aa7fb6d..8541195 100644
--- a/src/backends/backendsCommon/StringMapping.hpp
+++ b/src/backends/backendsCommon/StringMapping.hpp
@@ -18,6 +18,7 @@
 public:
     enum Id {
         RefAdditionWorkload_Execute,
+        RefEqualWorkload_Execute,
         RefSubtractionWorkload_Execute,
         RefMaximumWorkload_Execute,
         RefMultiplicationWorkload_Execute,
@@ -37,6 +38,7 @@
     StringMapping()
     {
         m_Strings[RefAdditionWorkload_Execute] = "RefAdditionWorkload_Execute";
+        m_Strings[RefEqualWorkload_Execute] = "RefEqualWorkload_Execute";
         m_Strings[RefSubtractionWorkload_Execute] = "RefSubtractionWorkload_Execute";
         m_Strings[RefMaximumWorkload_Execute] = "RefMaximumWorkload_Execute";
         m_Strings[RefMultiplicationWorkload_Execute] = "RefMultiplicationWorkload_Execute";
diff --git a/src/backends/backendsCommon/WorkloadData.cpp b/src/backends/backendsCommon/WorkloadData.cpp
index 47d5364..67cee1c 100644
--- a/src/backends/backendsCommon/WorkloadData.cpp
+++ b/src/backends/backendsCommon/WorkloadData.cpp
@@ -1013,4 +1013,17 @@
     ValidateSingleOutput(workloadInfo, "DebugQueueDescriptor");
 }
 
+void EqualQueueDescriptor::Validate(const WorkloadInfo& workloadInfo) const
+{
+    ValidateTwoInputs(workloadInfo, "EqualQueueDescriptor");
+    ValidateSingleOutput(workloadInfo, "EqualQueueDescriptor");
+
+    ValidateBroadcastTensorShapesMatch(workloadInfo.m_InputTensorInfos[0],
+                                       workloadInfo.m_InputTensorInfos[1],
+                                       workloadInfo.m_OutputTensorInfos[0],
+                                       "EqualQueueDescriptor",
+                                       "first input",
+                                       "second input");
+}
+
 } //namespace armnn
diff --git a/src/backends/backendsCommon/test/LayerTests.cpp b/src/backends/backendsCommon/test/LayerTests.cpp
index b44c835..4dc49f9 100755
--- a/src/backends/backendsCommon/test/LayerTests.cpp
+++ b/src/backends/backendsCommon/test/LayerTests.cpp
@@ -1665,6 +1665,15 @@
     return workloadFactory.CreateMinimum(descriptor, info);
 }
 
+template<>
+std::unique_ptr<armnn::IWorkload> CreateWorkload<armnn::EqualQueueDescriptor>(
+        const armnn::IWorkloadFactory& workloadFactory,
+        const armnn::WorkloadInfo& info,
+        const armnn::EqualQueueDescriptor& descriptor)
+{
+    return workloadFactory.CreateEqual(descriptor, info);
+}
+
 namespace {
     template <typename Descriptor, typename dataType>
     LayerTestResult<dataType, 4> ElementwiseTestHelper
@@ -1724,6 +1733,169 @@
     }
 }
 
+LayerTestResult<float, 4> EqualSimpleTest(armnn::IWorkloadFactory& workloadFactory,
+                                          const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    const unsigned int width = 2;
+    const unsigned int height = 2;
+    const unsigned int channelCount = 2;
+    const unsigned int batchSize = 2;
+
+    unsigned int shape[] = { batchSize, channelCount, height, width };
+
+    std::vector<float> input0({ 1, 1, 1, 1,  5, 5, 5, 5,
+                                3, 3, 3, 3,  4, 4, 4, 4 });
+
+    std::vector<float> input1({ 1, 1, 1, 1,  3, 3, 3, 3,
+                                5, 5, 5, 5,  4, 4, 4, 4 });
+
+    std::vector<float> output({ 1, 1, 1, 1,  0, 0, 0, 0,
+                                0, 0, 0, 0,  1, 1, 1, 1 });
+
+    return ElementwiseTestHelper<armnn::EqualQueueDescriptor, float>
+            (workloadFactory,
+             memoryManager,
+             shape,
+             input0,
+             shape,
+             input1,
+             shape,
+             output);
+}
+
+LayerTestResult<float, 4> EqualBroadcast1ElementTest(
+        armnn::IWorkloadFactory& workloadFactory,
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    unsigned int shape0[] = { 1, 2, 2, 2 };
+    std::vector<float> input0({ 1, 2, 3, 4, 5, 6, 7, 8});
+
+    unsigned int shape1[] = { 1, 1, 1, 1 };
+    std::vector<float> input1({ 1 });
+
+    std::vector<float> output({ 1, 0, 0, 0, 0, 0, 0, 0});
+
+    return ElementwiseTestHelper<armnn::EqualQueueDescriptor, float>
+            (workloadFactory,
+             memoryManager,
+             shape0,
+             input0,
+             shape1,
+             input1,
+             shape0,
+             output);
+}
+
+LayerTestResult<float, 4> EqualBroadcast1DVectorTest(
+        armnn::IWorkloadFactory& workloadFactory,
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    const unsigned int shape0[] = { 1, 2, 2, 3 };
+    const unsigned int shape1[] = { 1, 1, 1, 3 };
+
+    std::vector<float> input0({ 1, 2, 3, 4, 5, 6,
+                                7, 8, 9, 10, 11, 12 });
+
+    std::vector<float> input1({ 1, 2, 3});
+
+    std::vector<float> output({ 1, 1, 1, 0, 0, 0,
+                                0, 0, 0, 0, 0, 0 });
+
+    return ElementwiseTestHelper<armnn::EqualQueueDescriptor, float>
+            (workloadFactory,
+             memoryManager,
+             shape0,
+             input0,
+             shape1,
+             input1,
+             shape0,
+             output);
+}
+
+LayerTestResult<uint8_t, 4> EqualUint8Test(
+        armnn::IWorkloadFactory& workloadFactory,
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    unsigned int shape[] = { 2, 2, 2, 2 };
+
+    // See dequantized values to the right.
+    std::vector<uint8_t> input0({ 1, 1, 1, 1, 6, 6, 6, 6,
+                                  3, 3, 3, 3, 5, 5, 5, 5 });
+
+    std::vector<uint8_t> input1({ 2, 2, 2, 2, 6, 6, 6, 6,
+                                  3, 3, 3, 3, 5, 5, 5, 5 });
+
+    std::vector<uint8_t> output({ 0, 0, 0, 0, 1, 1, 1, 1,
+                                  1, 1, 1, 1, 0, 0, 0, 0 });
+
+    return ElementwiseTestHelper<armnn::EqualQueueDescriptor, uint8_t >
+            (workloadFactory,
+             memoryManager,
+             shape,
+             input0,
+             shape,
+             input1,
+             shape,
+             output,
+             1.0f,
+             0);
+}
+
+LayerTestResult<uint8_t, 4> EqualBroadcast1ElementUint8Test(
+        armnn::IWorkloadFactory& workloadFactory,
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    const unsigned int shape0[] = { 1, 2, 2, 3 };
+    const unsigned int shape1[] = { 1, 1, 1, 1 };
+
+    std::vector<uint8_t> input0({ 1, 2, 3, 4, 5, 6,
+                                  7, 8, 9, 10, 11, 12 });
+
+    std::vector<uint8_t> input1({ 1 });
+
+    std::vector<uint8_t> output({ 1, 0, 0, 0, 0, 0,
+                                  0, 0, 0, 0, 0, 0 });
+
+    return ElementwiseTestHelper<armnn::EqualQueueDescriptor, uint8_t >
+            (workloadFactory,
+             memoryManager,
+             shape0,
+             input0,
+             shape1,
+             input1,
+             shape0,
+             output,
+             1.0f,
+             0);
+}
+
+LayerTestResult<uint8_t, 4> EqualBroadcast1DVectorUint8Test(
+        armnn::IWorkloadFactory& workloadFactory,
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    const unsigned int shape0[] = { 1, 2, 2, 3 };
+    const unsigned int shape1[] = { 1, 1, 1, 3 };
+
+    std::vector<uint8_t> input0({ 1, 2, 3, 4, 5, 6,
+                                  7, 8, 9, 10, 11, 12 });
+
+    std::vector<uint8_t> input1({ 1, 1, 3});
+
+    std::vector<uint8_t> output({ 1, 0, 1, 0, 0, 0,
+                                  0, 0, 0, 0, 0, 0 });
+
+    return ElementwiseTestHelper<armnn::EqualQueueDescriptor, uint8_t>
+            (workloadFactory,
+             memoryManager,
+             shape0,
+             input0,
+             shape1,
+             input1,
+             shape0,
+             output,
+             1.0f,
+             0);
+}
 
 LayerTestResult<float, 4> MaximumSimpleTest(armnn::IWorkloadFactory& workloadFactory,
                                            const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
diff --git a/src/backends/backendsCommon/test/LayerTests.hpp b/src/backends/backendsCommon/test/LayerTests.hpp
index 1f38675..029418e 100644
--- a/src/backends/backendsCommon/test/LayerTests.hpp
+++ b/src/backends/backendsCommon/test/LayerTests.hpp
@@ -867,6 +867,30 @@
     const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
     bool useSubtensor);
 
+LayerTestResult<float, 4> EqualSimpleTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<float, 4> EqualBroadcast1ElementTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<float, 4> EqualBroadcast1DVectorTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<uint8_t, 4> EqualUint8Test(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<uint8_t, 4> EqualBroadcast1ElementUint8Test(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<uint8_t, 4> EqualBroadcast1DVectorUint8Test(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
 LayerTestResult<float, 2> FullyConnectedLargeTest(
     armnn::IWorkloadFactory& workloadFactory,
     const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,