IVGCVSW-3878 Add reference workload for SLICE

* Added reference workload implementation and layer tests
  for all supported tensor dimensions (1d, 2d, 3d, 4d)

Signed-off-by: Aron Virginas-Tar <Aron.Virginas-Tar@arm.com>
Change-Id: I40eb300828933e9183027281105d1a7e597d1569

6 files changed, 346 insertions, 1 deletions

diff --git a/src/backends/backendsCommon/WorkloadData.cpp b/src/backends/backendsCommon/WorkloadData.cpp
index 2fa0c92daf..136c196e1b 100644
--- a/src/backends/backendsCommon/WorkloadData.cpp
+++ b/src/backends/backendsCommon/WorkloadData.cpp
@@ -2631,7 +2631,7 @@ void SliceQueueDescriptor::Validate(const WorkloadInfo& workloadInfo) const
     const TensorShape& inputShape  = inputTensorInfo.GetShape();
     for(unsigned int i = 0u; i < rank; ++i)
     {
-        if (m_Parameters.m_Begin[i] + m_Parameters.m_Size[i] >= inputShape[i])
+        if (m_Parameters.m_Begin[i] + m_Parameters.m_Size[i] > inputShape[i])
         {
             throw InvalidArgumentException(descriptorName + ": Sum of begin offset and size for dimension " +
                 std::to_string(i) + " exceeds input size.");
diff --git a/src/backends/backendsCommon/common.mk b/src/backends/backendsCommon/common.mk
index 14feb347d3..0943a83eb1 100644
--- a/src/backends/backendsCommon/common.mk
+++ b/src/backends/backendsCommon/common.mk
@@ -62,6 +62,7 @@ COMMON_TEST_SOURCES := \
     test/layerTests/Pooling2dTestImpl.cpp \
     test/layerTests/ReshapeTestImpl.cpp \
     test/layerTests/RsqrtTestImpl.cpp \
+    test/layerTests/SliceTestImpl.cpp \
     test/layerTests/QuantizeTestImpl.cpp \
     test/layerTests/SoftmaxTestImpl.cpp \
     test/layerTests/SpaceToBatchNdTestImpl.cpp \
diff --git a/src/backends/backendsCommon/test/CMakeLists.txt b/src/backends/backendsCommon/test/CMakeLists.txt
index e3fa431363..ef293d490b 100644
--- a/src/backends/backendsCommon/test/CMakeLists.txt
+++ b/src/backends/backendsCommon/test/CMakeLists.txt
@@ -106,6 +106,8 @@ list(APPEND armnnBackendsCommonUnitTests_sources
     layerTests/ResizeTestImpl.hpp
     layerTests/RsqrtTestImpl.cpp
     layerTests/RsqrtTestImpl.hpp
+    layerTests/SliceTestImpl.cpp
+    layerTests/SliceTestImpl.hpp
     layerTests/SoftmaxTestImpl.cpp
     layerTests/SoftmaxTestImpl.hpp
     layerTests/SpaceToBatchNdTestImpl.cpp
diff --git a/src/backends/backendsCommon/test/LayerTests.hpp b/src/backends/backendsCommon/test/LayerTests.hpp
index bf2ef6abb6..f48ae436cb 100644
--- a/src/backends/backendsCommon/test/LayerTests.hpp
+++ b/src/backends/backendsCommon/test/LayerTests.hpp
@@ -40,6 +40,7 @@
 #include <backendsCommon/test/layerTests/ReshapeTestImpl.hpp>
 #include <backendsCommon/test/layerTests/ResizeTestImpl.hpp>
 #include <backendsCommon/test/layerTests/RsqrtTestImpl.hpp>
+#include <backendsCommon/test/layerTests/SliceTestImpl.hpp>
 #include <backendsCommon/test/layerTests/SoftmaxTestImpl.hpp>
 #include <backendsCommon/test/layerTests/SpaceToBatchNdTestImpl.hpp>
 #include <backendsCommon/test/layerTests/SpaceToDepthTestImpl.hpp>
diff --git a/src/backends/backendsCommon/test/layerTests/SliceTestImpl.cpp b/src/backends/backendsCommon/test/layerTests/SliceTestImpl.cpp
new file mode 100644
index 0000000000..f0479c8ea9
--- /dev/null
+++ b/src/backends/backendsCommon/test/layerTests/SliceTestImpl.cpp
@@ -0,0 +1,291 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "SliceTestImpl.hpp"
+
+#include <ResolveType.hpp>
+
+#include <armnn/ArmNN.hpp>
+
+#include <backendsCommon/test/TensorCopyUtils.hpp>
+#include <backendsCommon/test/WorkloadTestUtils.hpp>
+
+#include <test/TensorHelpers.hpp>
+
+namespace
+{
+
+template<typename T, std::size_t NumDims>
+LayerTestResult<T, NumDims> SliceTestImpl(
+    armnn::IWorkloadFactory& workloadFactory,
+    const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
+    armnn::TensorInfo& inputInfo,
+    armnn::TensorInfo& outputInfo,
+    std::vector<float>& inputData,
+    std::vector<float>& expectedOutputData,
+    armnn::SliceQueueDescriptor descriptor,
+    const float qScale = 1.0f,
+    const int qOffset = 0)
+{
+    if(armnn::IsQuantizedType<T>())
+    {
+        inputInfo.SetQuantizationScale(qScale);
+        inputInfo.SetQuantizationOffset(qOffset);
+
+        outputInfo.SetQuantizationScale(qScale);
+        outputInfo.SetQuantizationOffset(qOffset);
+    }
+
+    boost::multi_array<T, NumDims> input =
+        MakeTensor<T, NumDims>(inputInfo, QuantizedVector<T>(qScale, qOffset, inputData));
+
+    LayerTestResult<T, NumDims> result(outputInfo);
+    result.outputExpected =
+        MakeTensor<T, NumDims>(outputInfo, QuantizedVector<T>(qScale, qOffset, expectedOutputData));
+
+    std::unique_ptr<armnn::ITensorHandle> inputHandle  = workloadFactory.CreateTensorHandle(inputInfo);
+    std::unique_ptr<armnn::ITensorHandle> outputHandle = workloadFactory.CreateTensorHandle(outputInfo);
+
+    armnn::WorkloadInfo info;
+    AddInputToWorkload(descriptor, info, inputInfo, inputHandle.get());
+    AddOutputToWorkload(descriptor, info, outputInfo, outputHandle.get());
+
+    std::unique_ptr<armnn::IWorkload> workload = workloadFactory.CreateSlice(descriptor, info);
+
+    inputHandle->Allocate();
+    outputHandle->Allocate();
+
+    CopyDataToITensorHandle(inputHandle.get(), input.data());
+
+    ExecuteWorkload(*workload, memoryManager);
+
+    CopyDataFromITensorHandle(result.output.data(), outputHandle.get());
+
+    return result;
+}
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 4> Slice4dTest(armnn::IWorkloadFactory& workloadFactory,
+                                  const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    armnn::TensorShape inputShape  = { 3, 2, 3, 5 };
+    armnn::TensorShape outputShape = { 2, 1, 2, 3 };
+
+    armnn::SliceQueueDescriptor desc;
+    desc.m_Parameters.m_Begin  = { 1, 0, 1, 2 };
+    desc.m_Parameters.m_Size   = { 2, 1, 2, 3 };
+
+    armnn::TensorInfo inputInfo(inputShape, ArmnnType);
+    armnn::TensorInfo outputInfo(outputShape, ArmnnType);
+
+    std::vector<float> input =
+    {
+         0.f,  1.f,  2.f,  3.f,  4.f,
+         5.f,  6.f,  7.f,  8.f,  9.f,
+        10.f, 11.f, 12.f, 13.f, 14.f,
+
+        15.f, 16.f, 17.f, 18.f, 19.f,
+        20.f, 21.f, 22.f, 23.f, 24.f,
+        25.f, 26.f, 27.f, 28.f, 29.f,
+
+
+        30.f, 31.f, 32.f, 33.f, 34.f,
+        35.f, 36.f, 37.f, 38.f, 39.f,
+        40.f, 41.f, 42.f, 43.f, 44.f,
+
+        45.f, 46.f, 47.f, 48.f, 49.f,
+        50.f, 51.f, 52.f, 53.f, 54.f,
+        55.f, 56.f, 57.f, 58.f, 59.f,
+
+
+        60.f, 61.f, 62.f, 63.f, 64.f,
+        65.f, 66.f, 67.f, 68.f, 69.f,
+        70.f, 71.f, 72.f, 73.f, 74.f,
+
+        75.f, 76.f, 77.f, 78.f, 79.f,
+        80.f, 81.f, 82.f, 83.f, 84.f,
+        85.f, 86.f, 87.f, 88.f, 89.f
+    };
+
+    std::vector<float> expectedOutput =
+    {
+        37.f, 38.f, 39.f,
+        42.f, 43.f, 44.f,
+
+
+        67.f, 68.f, 69.f,
+        72.f, 73.f, 74.f
+    };
+
+    return SliceTestImpl<T, 4>(workloadFactory, memoryManager, inputInfo, outputInfo, input, expectedOutput, desc);
+}
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 3> Slice3dTest(armnn::IWorkloadFactory& workloadFactory,
+                                  const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    armnn::TensorShape inputShape  = { 2, 3, 5 };
+    armnn::TensorShape outputShape = { 1, 2, 3 };
+
+    armnn::SliceQueueDescriptor desc;
+    desc.m_Parameters.m_Begin  = { 0, 1, 2 };
+    desc.m_Parameters.m_Size   = { 1, 2, 3 };
+
+    armnn::TensorInfo inputInfo(inputShape, ArmnnType);
+    armnn::TensorInfo outputInfo(outputShape, ArmnnType);
+
+    std::vector<float> input =
+    {
+         0.f,  1.f,  2.f,  3.f,  4.f,
+         5.f,  6.f,  7.f,  8.f,  9.f,
+        10.f, 11.f, 12.f, 13.f, 14.f,
+
+        15.f, 16.f, 17.f, 18.f, 19.f,
+        20.f, 21.f, 22.f, 23.f, 24.f,
+        25.f, 26.f, 27.f, 28.f, 29.f,
+    };
+
+    std::vector<float> expectedOutput =
+    {
+         7.f,  8.f,  9.f,
+        12.f, 13.f, 14.f
+    };
+
+    return SliceTestImpl<T, 3>(workloadFactory, memoryManager, inputInfo, outputInfo, input, expectedOutput, desc);
+}
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 2> Slice2dTest(armnn::IWorkloadFactory& workloadFactory,
+                                  const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    armnn::TensorShape inputShape  = { 3, 5 };
+    armnn::TensorShape outputShape = { 2, 3 };
+
+    armnn::SliceQueueDescriptor desc;
+    desc.m_Parameters.m_Begin  = { 1, 2 };
+    desc.m_Parameters.m_Size   = { 2, 3 };
+
+    armnn::TensorInfo inputInfo(inputShape, ArmnnType);
+    armnn::TensorInfo outputInfo(outputShape, ArmnnType);
+
+    std::vector<float> input =
+    {
+         0.f,  1.f,  2.f,  3.f,  4.f,
+         5.f,  6.f,  7.f,  8.f,  9.f,
+        10.f, 11.f, 12.f, 13.f, 14.f
+    };
+
+    std::vector<float> expectedOutput =
+    {
+         7.f,  8.f,  9.f,
+        12.f, 13.f, 14.f
+    };
+
+    return SliceTestImpl<T, 2>(workloadFactory, memoryManager, inputInfo, outputInfo, input, expectedOutput, desc);
+}
+
+template<armnn::DataType ArmnnType, typename T = armnn::ResolveType<ArmnnType>>
+LayerTestResult<T, 1> Slice1dTest(armnn::IWorkloadFactory& workloadFactory,
+                                  const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    armnn::TensorShape inputShape  = { 5 };
+    armnn::TensorShape outputShape = { 3 };
+
+    armnn::SliceQueueDescriptor desc;
+    desc.m_Parameters.m_Begin  = { 2 };
+    desc.m_Parameters.m_Size   = { 3 };
+
+    armnn::TensorInfo inputInfo(inputShape, ArmnnType);
+    armnn::TensorInfo outputInfo(outputShape, ArmnnType);
+
+    std::vector<float> input =
+    {
+         0.f,  1.f,  2.f,  3.f,  4.f
+    };
+
+    std::vector<float> expectedOutput =
+    {
+         2.f,  3.f,  4.f
+    };
+
+    return SliceTestImpl<T, 1>(workloadFactory, memoryManager, inputInfo, outputInfo, input, expectedOutput, desc);
+}
+
+} // anonymous namespace
+
+// Float32 tests
+LayerTestResult<float, 4> Slice4dFloat32Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice4dTest<armnn::DataType::Float32>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<float, 3> Slice3dFloat32Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice3dTest<armnn::DataType::Float32>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<float, 2> Slice2dFloat32Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice2dTest<armnn::DataType::Float32>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<float, 1> Slice1dFloat32Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice1dTest<armnn::DataType::Float32>(workloadFactory, memoryManager);
+}
+
+// Uint8 tests
+LayerTestResult<uint8_t, 4> Slice4dUint8Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice4dTest<armnn::DataType::QuantisedAsymm8>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<uint8_t, 3> Slice3dUint8Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice3dTest<armnn::DataType::QuantisedAsymm8>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<uint8_t, 2> Slice2dUint8Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice2dTest<armnn::DataType::QuantisedAsymm8>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<uint8_t, 1> Slice1dUint8Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice1dTest<armnn::DataType::QuantisedAsymm8>(workloadFactory, memoryManager);
+}
+
+// Int16 tests
+LayerTestResult<int16_t, 4> Slice4dInt16Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice4dTest<armnn::DataType::QuantisedSymm16>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<int16_t, 3> Slice3dInt16Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice3dTest<armnn::DataType::QuantisedSymm16>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<int16_t, 2> Slice2dInt16Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice2dTest<armnn::DataType::QuantisedSymm16>(workloadFactory, memoryManager);
+}
+
+LayerTestResult<int16_t, 1> Slice1dInt16Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
+{
+    return Slice1dTest<armnn::DataType::QuantisedSymm16>(workloadFactory, memoryManager);
+}
diff --git a/src/backends/backendsCommon/test/layerTests/SliceTestImpl.hpp b/src/backends/backendsCommon/test/layerTests/SliceTestImpl.hpp
new file mode 100644
index 0000000000..59458edd2f
--- /dev/null
+++ b/src/backends/backendsCommon/test/layerTests/SliceTestImpl.hpp
@@ -0,0 +1,50 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "LayerTestResult.hpp"
+
+#include <backendsCommon/IBackendInternal.hpp>
+#include <backendsCommon/WorkloadFactory.hpp>
+
+// Float32 tests
+LayerTestResult<float, 4> Slice4dFloat32Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<float, 3> Slice3dFloat32Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<float, 2> Slice2dFloat32Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<float, 1> Slice1dFloat32Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+// Uint8 tests
+LayerTestResult<uint8_t, 4> Slice4dUint8Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<uint8_t, 3> Slice3dUint8Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<uint8_t, 2> Slice2dUint8Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<uint8_t, 1> Slice1dUint8Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+// Int16 tests
+LayerTestResult<int16_t, 4> Slice4dInt16Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<int16_t, 3> Slice3dInt16Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<int16_t, 2> Slice2dInt16Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);
+
+LayerTestResult<int16_t, 1> Slice1dInt16Test(armnn::IWorkloadFactory& workloadFactory,
+                                             const armnn::IBackendInternal::IMemoryManagerSharedPtr& memoryManager);