IVGCVSW-4620 Add Fill Reference Implementation

 * Add Fill Reference Implementation
 * Refactor FP converter to use static_cast

Signed-off-by: Ryan OShea <Ryan.OShea2@arm.com>
Signed-off-by: Keith Davis <keith.davis@arm.com>
Change-Id: I532e2f982981d047690755fac43a0e9cf8b17dcd

2 files changed, 88 insertions, 0 deletions

diff --git a/src/backends/backendsCommon/test/layerTests/FillTestImpl.cpp b/src/backends/backendsCommon/test/layerTests/FillTestImpl.cpp
new file mode 100644
index 0000000000..00a185ca2d
--- /dev/null
+++ b/src/backends/backendsCommon/test/layerTests/FillTestImpl.cpp
@@ -0,0 +1,70 @@
+//
+// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "FillTestImpl.hpp"
+
+#include <backendsCommon/test/DataTypeUtils.hpp>
+#include <backendsCommon/test/TensorCopyUtils.hpp>
+#include <backendsCommon/test/WorkloadTestUtils.hpp>
+
+#include <test/TensorHelpers.hpp>
+
+template<armnn::DataType ArmnnType, typename T>
+LayerTestResult<T, 4> SimpleFillTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    IgnoreUnused(memoryManager);
+    armnn::TensorInfo inputTensorInfo({4}, ArmnnType);
+    inputTensorInfo.SetQuantizationScale(0.0f);
+
+    armnn::TensorInfo outputTensorInfo({2, 2, 3, 2}, ArmnnType);
+    outputTensorInfo.SetQuantizationScale(0.0f);
+
+    auto input = MakeTensor<T, 1>(inputTensorInfo, ConvertToDataType<ArmnnType>(
+        {2, 2, 3, 2},
+        inputTensorInfo));
+
+    LayerTestResult<T, 4> ret(outputTensorInfo);
+        ret.outputExpected = MakeTensor<T, 4>(outputTensorInfo, ConvertToDataType<ArmnnType>(
+        { 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
+          1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f },
+        outputTensorInfo));
+
+    std::unique_ptr<armnn::ITensorHandle> inputHandle = workloadFactory.CreateTensorHandle(inputTensorInfo);
+    std::unique_ptr<armnn::ITensorHandle> outputHandle = workloadFactory.CreateTensorHandle(outputTensorInfo);
+
+    armnn::FillQueueDescriptor data;
+    data.m_Parameters.m_Value = 1.0f;
+    armnn::WorkloadInfo info;
+    AddInputToWorkload(data, info, inputTensorInfo, inputHandle.get());
+    AddOutputToWorkload(data, info, outputTensorInfo, outputHandle.get());
+
+    std::unique_ptr<armnn::IWorkload> workload = workloadFactory.CreateFill(data, info);
+
+    inputHandle->Allocate();
+    outputHandle->Allocate();
+
+    CopyDataToITensorHandle(inputHandle.get(), &input[0]);
+
+    workload->Execute();
+
+    CopyDataFromITensorHandle(&ret.output[0][0][0][0], outputHandle.get());
+
+    return ret;
+}
+
+//
+// Explicit template specializations
+//
+template LayerTestResult<armnn::ResolveType<armnn::DataType::Float32>, 4>
+SimpleFillTest<armnn::DataType::Float32>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::Float16>, 4>
+SimpleFillTest<armnn::DataType::Float16>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
\ No newline at end of file
diff --git a/src/backends/backendsCommon/test/layerTests/FillTestImpl.hpp b/src/backends/backendsCommon/test/layerTests/FillTestImpl.hpp
new file mode 100644
index 0000000000..988900774e
--- /dev/null
+++ b/src/backends/backendsCommon/test/layerTests/FillTestImpl.hpp
@@ -0,0 +1,18 @@
+//
+// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "LayerTestResult.hpp"
+
+#include <ResolveType.hpp>
+
+#include <armnn/backends/IBackendInternal.hpp>
+#include <backendsCommon/WorkloadFactory.hpp>
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 4> SimpleFillTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);