IVGCVSW-2247 Adding a min Elementwise Workload and tests

Change-Id: I017ca6c23b62a8978982de0ca4ad204cb8cf7c67
diff --git a/src/backends/backendsCommon/StringMapping.hpp b/src/backends/backendsCommon/StringMapping.hpp
index 8fca3d3..aa7fb6d 100644
--- a/src/backends/backendsCommon/StringMapping.hpp
+++ b/src/backends/backendsCommon/StringMapping.hpp
@@ -22,6 +22,7 @@
         RefMaximumWorkload_Execute,
         RefMultiplicationWorkload_Execute,
         RefDivisionWorkload_Execute,
+        RefMinimumWorkload_Execute,
         MAX_STRING_ID
     };
 
@@ -40,6 +41,7 @@
         m_Strings[RefMaximumWorkload_Execute] = "RefMaximumWorkload_Execute";
         m_Strings[RefMultiplicationWorkload_Execute] = "RefMultiplicationWorkload_Execute";
         m_Strings[RefDivisionWorkload_Execute] = "RefDivisionWorkload_Execute";
+        m_Strings[RefMinimumWorkload_Execute] = "RefMinimumWorkload_Execute";
     }
 
     StringMapping(const StringMapping &) = delete;
diff --git a/src/backends/backendsCommon/WorkloadData.hpp b/src/backends/backendsCommon/WorkloadData.hpp
index ee1a054..b0c1e6a 100644
--- a/src/backends/backendsCommon/WorkloadData.hpp
+++ b/src/backends/backendsCommon/WorkloadData.hpp
@@ -351,6 +351,7 @@
     void Validate(const WorkloadInfo& workloadInfo) const;
 };
 
+// Minimum layer workload data.
 struct MinimumQueueDescriptor : QueueDescriptor
 {
     void Validate(const WorkloadInfo& workloadInfo) const;
diff --git a/src/backends/backendsCommon/WorkloadFactory.hpp b/src/backends/backendsCommon/WorkloadFactory.hpp
index 2c3c8aa..eb24b64 100644
--- a/src/backends/backendsCommon/WorkloadFactory.hpp
+++ b/src/backends/backendsCommon/WorkloadFactory.hpp
@@ -139,15 +139,15 @@
     virtual std::unique_ptr<IWorkload> CreateMean(const MeanQueueDescriptor& descriptor,
                                                   const WorkloadInfo& Info) const = 0;
 
+    virtual std::unique_ptr<IWorkload> CreateMinimum(const MinimumQueueDescriptor& descriptor,
+                                                     const WorkloadInfo& info) const = 0;
+
     virtual std::unique_ptr<IWorkload> CreatePad(const PadQueueDescriptor& descriptor,
                                                  const WorkloadInfo& Info) const = 0;
 
     virtual std::unique_ptr<IWorkload> CreateStridedSlice(const StridedSliceQueueDescriptor& descriptor,
                                                           const WorkloadInfo& Info) const = 0;
 
-    virtual std::unique_ptr<IWorkload> CreateMinimum(const MinimumQueueDescriptor& descriptor,
-                                                     const WorkloadInfo& info) const = 0;
-
     virtual std::unique_ptr<IWorkload> CreateDebug(const DebugQueueDescriptor& descriptor,
                                                    const WorkloadInfo& info) const = 0;
 };
diff --git a/src/backends/backendsCommon/test/LayerTests.cpp b/src/backends/backendsCommon/test/LayerTests.cpp
index c3822bd..131b84c 100755
--- a/src/backends/backendsCommon/test/LayerTests.cpp
+++ b/src/backends/backendsCommon/test/LayerTests.cpp
@@ -1655,6 +1655,15 @@
     return workloadFactory.CreateMaximum(descriptor, info);
 }
 
+template<>
+std::unique_ptr<armnn::IWorkload> CreateWorkload<armnn::MinimumQueueDescriptor>(
+    const armnn::IWorkloadFactory& workloadFactory,
+    const armnn::WorkloadInfo& info,
+    const armnn::MinimumQueueDescriptor& descriptor)
+{
+    return workloadFactory.CreateMinimum(descriptor, info);
+}
+
 namespace {
     template <typename Descriptor, typename dataType>
     LayerTestResult<dataType, 4> ElementwiseTestHelper
@@ -1866,7 +1875,7 @@
     std::vector<uint8_t> output({ 1, 10, 3, 4, 10, 6,
                                   7, 10, 9, 10, 11, 12 });
 
-    return ElementwiseTestHelper<armnn::MaximumQueueDescriptor, uint8_t >
+    return ElementwiseTestHelper<armnn::MaximumQueueDescriptor, uint8_t>
             (workloadFactory,
              memoryManager,
              shape0,
@@ -1879,6 +1888,78 @@
              0);
 }
 
+LayerTestResult<float, 4> MinimumBroadcast1ElementTest1(
+    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({ 2 });
+
+    std::vector<float> output({ 1, 2, 2, 2, 2, 2, 2, 2});
+
+    return ElementwiseTestHelper<armnn::MinimumQueueDescriptor, float>(workloadFactory,
+                                                                       memoryManager,
+                                                                       shape0,
+                                                                       input0,
+                                                                       shape1,
+                                                                       input1,
+                                                                       shape0,
+                                                                       output);
+}
+
+
+LayerTestResult<float, 4> MinimumBroadcast1ElementTest2(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    unsigned int shape0[] = { 1, 2, 2, 2 };
+    std::vector<float> input0({ 1, 6, 3, 2, 8, 9, 1, 10});
+
+    unsigned int shape1[] = { 1, 1, 1, 1 };
+    std::vector<float> input1({ 5 });
+
+    std::vector<float> output({ 1, 5, 3, 2, 5, 5, 1, 5});
+
+    return ElementwiseTestHelper<armnn::MinimumQueueDescriptor, float>(workloadFactory,
+                                                                       memoryManager,
+                                                                       shape0,
+                                                                       input0,
+                                                                       shape1,
+                                                                       input1,
+                                                                       shape0,
+                                                                       output);
+}
+
+LayerTestResult<uint8_t, 4> MinimumBroadcast1DVectorUint8Test(
+    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, 3, 2, 1,
+                                  7, 1, 2, 3, 4, 5 });
+
+    std::vector<uint8_t> input1({ 1, 2, 3});
+
+    std::vector<uint8_t> output({ 1, 2, 3, 1, 2, 1,
+                                  1, 1, 2, 1, 2, 3 });
+
+    return ElementwiseTestHelper<armnn::MinimumQueueDescriptor, uint8_t>(workloadFactory,
+                                                                         memoryManager,
+                                                                         shape0,
+                                                                         input0,
+                                                                         shape1,
+                                                                         input1,
+                                                                         shape0,
+                                                                         output,
+                                                                         1.0f,
+                                                                         0);
+}
+
 namespace {
 LayerTestResult<float,4> MultiplicationTestHelper(
     armnn::IWorkloadFactory& workloadFactory,
diff --git a/src/backends/backendsCommon/test/LayerTests.hpp b/src/backends/backendsCommon/test/LayerTests.hpp
index fa1c864..1797f9f 100644
--- a/src/backends/backendsCommon/test/LayerTests.hpp
+++ b/src/backends/backendsCommon/test/LayerTests.hpp
@@ -1008,6 +1008,18 @@
     armnn::IWorkloadFactory& workloadFactory,
     const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
 
+LayerTestResult<float, 4> MinimumBroadcast1ElementTest1(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<float, 4> MinimumBroadcast1ElementTest2(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<uint8_t, 4> MinimumBroadcast1DVectorUint8Test(
+    armnn::IWorkloadFactory & workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr & memoryManager);
+
 LayerTestResult<float, 4> AdditionAfterMaxPoolTest(
     armnn::IWorkloadFactory& workloadFactory,
     const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);