IVGCVSW-6936 Sqrt for CpuRef, CpuAcc and GpuAcc

* Add Unit Tests
* Bug Fix: add Sqrt to Neon and Cl workload factories


Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: I0db1d813a4e7d15431e87e825e6d14e61f5ffb7d
diff --git a/src/backends/backendsCommon/test/layerTests/SqrtTestImpl.cpp b/src/backends/backendsCommon/test/layerTests/SqrtTestImpl.cpp
new file mode 100644
index 0000000..d0a6b81
--- /dev/null
+++ b/src/backends/backendsCommon/test/layerTests/SqrtTestImpl.cpp
@@ -0,0 +1,204 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+//#include "ReshapeTestImpl.hpp"
+#include "ElementwiseUnaryTestImpl.hpp"
+
+
+template<armnn::DataType ArmnnType, typename T>
+LayerTestResult<T, 2> Sqrt2dTest(
+        armnn::IWorkloadFactory& workloadFactory,
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+        const armnn::ITensorHandleFactory& tensorHandleFactory)
+{
+    const unsigned int inputShape[] = { 2, 2 };
+
+    std::vector<float> inputValues
+    {
+        1.f, 4.f,
+        16.f, 25.f
+    };
+
+    std::vector<float> expectedOutputValues
+    {
+        1.f, 2.f,
+        4.f, 5.f
+    };
+
+    return ElementwiseUnaryTestHelper<2, ArmnnType>(
+        workloadFactory,
+        memoryManager,
+        armnn::UnaryOperation::Sqrt,
+        inputShape,
+        inputValues,
+        inputShape,
+        expectedOutputValues,
+        tensorHandleFactory);
+}
+
+template<armnn::DataType ArmnnType, typename T>
+LayerTestResult<T, 3> Sqrt3dTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory)
+{
+    const unsigned int inputShape[] = { 3, 1, 2 };
+
+    std::vector<float> inputValues
+    {
+        1.f, 4.f, 16.f,
+        25.f, 64.f, 100.f
+    };
+
+    std::vector<float> expectedOutputValues
+    {
+        1.f, 2.f, 4.f,
+        5.f, 8.f, 10.f
+    };
+
+    return ElementwiseUnaryTestHelper<3, ArmnnType>(
+        workloadFactory,
+        memoryManager,
+        armnn::UnaryOperation::Sqrt,
+        inputShape,
+        inputValues,
+        inputShape,
+        expectedOutputValues,
+        tensorHandleFactory);
+}
+
+template<armnn::DataType ArmnnType, typename T>
+LayerTestResult<T, 2> SqrtZeroTest(
+        armnn::IWorkloadFactory& workloadFactory,
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+        const armnn::ITensorHandleFactory& tensorHandleFactory)
+{
+    const unsigned int inputShape[] = { 1, 2 };
+
+    std::vector<float> inputValues
+    {
+        0.f, -0.f
+    };
+
+    std::vector<float> expectedOutputValues
+    {
+        0, 0
+    };
+
+    return ElementwiseUnaryTestHelper<2, ArmnnType>(
+        workloadFactory,
+        memoryManager,
+        armnn::UnaryOperation::Sqrt,
+        inputShape,
+        inputValues,
+        inputShape,
+        expectedOutputValues,
+        tensorHandleFactory);
+}
+
+template<armnn::DataType ArmnnType, typename T>
+LayerTestResult<T, 2> SqrtNegativeTest(
+        armnn::IWorkloadFactory& workloadFactory,
+        const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+        const armnn::ITensorHandleFactory& tensorHandleFactory)
+{
+    const unsigned int inputShape[] = { 1, 2 };
+
+    std::vector<float> inputValues
+    {
+        -25.f, -16.f
+    };
+
+    std::vector<float> expectedOutputValues
+    {
+        -NAN, -NAN
+    };
+
+    return ElementwiseUnaryTestHelper<2, ArmnnType>(
+        workloadFactory,
+        memoryManager,
+        armnn::UnaryOperation::Sqrt,
+        inputShape,
+        inputValues,
+        inputShape,
+        expectedOutputValues,
+        tensorHandleFactory);
+}
+
+//
+// Explicit template specializations
+//
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::Float32>, 2>
+Sqrt2dTest<armnn::DataType::Float32>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::Float16>, 2>
+Sqrt2dTest<armnn::DataType::Float16>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::QAsymmS8>, 2>
+Sqrt2dTest<armnn::DataType::QAsymmS8>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+        const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::QAsymmU8>, 2>
+Sqrt2dTest<armnn::DataType::QAsymmU8>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::QSymmS16>, 2>
+Sqrt2dTest<armnn::DataType::QSymmS16>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::Float32>, 3>
+Sqrt3dTest<armnn::DataType::Float32>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::Float16>, 3>
+Sqrt3dTest<armnn::DataType::Float16>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::QAsymmS8>, 3>
+Sqrt3dTest<armnn::DataType::QAsymmS8>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::QAsymmU8>, 3>
+Sqrt3dTest<armnn::DataType::QAsymmU8>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::QSymmS16>, 3>
+Sqrt3dTest<armnn::DataType::QSymmS16>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::Float32>, 2>
+SqrtZeroTest<armnn::DataType::Float32>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template LayerTestResult<armnn::ResolveType<armnn::DataType::Float32>, 2>
+SqrtNegativeTest<armnn::DataType::Float32>(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
diff --git a/src/backends/backendsCommon/test/layerTests/SqrtTestImpl.hpp b/src/backends/backendsCommon/test/layerTests/SqrtTestImpl.hpp
new file mode 100644
index 0000000..1e30170
--- /dev/null
+++ b/src/backends/backendsCommon/test/layerTests/SqrtTestImpl.hpp
@@ -0,0 +1,37 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <armnnTestUtils/LayerTestResult.hpp>
+
+#include <ResolveType.hpp>
+
+#include <armnn/backends/IBackendInternal.hpp>
+#include <armnn/backends/WorkloadFactory.hpp>
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 2> Sqrt2dTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 3> Sqrt3dTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 2> SqrtZeroTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 2> SqrtNegativeTest(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    const armnn::ITensorHandleFactory& tensorHandleFactory);