1 files changed, 427 insertions, 0 deletions
diff --git a/include/armnn/backends/ILayerSupport.hpp b/include/armnn/backends/ILayerSupport.hpp
new file mode 100644
index 0000000000..52b6df7117
--- /dev/null
+++ b/include/armnn/backends/ILayerSupport.hpp
@@ -0,0 +1,427 @@
+//
+// Copyright © 2017 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <armnn/Deprecated.hpp>
+#include <armnn/DescriptorsFwd.hpp>
+#include <armnn/LstmParams.hpp>
+#include <armnn/Optional.hpp>
+#include <armnn/QuantizedLstmParams.hpp>
+
+#include <cctype>
+#include <functional>
+#include <memory>
+#include <vector>
+
+namespace armnn
+{
+
+class TensorInfo;
+
+class ILayerSupport
+{
+protected:
+    ILayerSupport() {}
+    virtual ~ILayerSupport() {}
+
+public:
+    virtual bool IsAbsSupported(const TensorInfo& input,
+                                const TensorInfo& output,
+                                Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsActivationSupported(const TensorInfo& input,
+                                       const TensorInfo& output,
+                                       const ActivationDescriptor& descriptor,
+                                       Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsAdditionSupported(const TensorInfo& input0,
+                                     const TensorInfo& input1,
+                                     const TensorInfo& output,
+                                     Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsArgMinMaxSupported(const TensorInfo& input,
+                                      const TensorInfo& output,
+                                      const ArgMinMaxDescriptor& descriptor,
+                                      Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsBatchNormalizationSupported(const TensorInfo& input,
+                                               const TensorInfo& output,
+                                               const TensorInfo& mean,
+                                               const TensorInfo& var,
+                                               const TensorInfo& beta,
+                                               const TensorInfo& gamma,
+                                               const BatchNormalizationDescriptor& descriptor,
+                                               Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsBatchToSpaceNdSupported(const TensorInfo& input,
+                                           const TensorInfo& output,
+                                           const BatchToSpaceNdDescriptor& descriptor,
+                                           Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsCastSupported(const TensorInfo& input,
+                                 const TensorInfo& output,
+                                 Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsComparisonSupported(const TensorInfo& input0,
+                                       const TensorInfo& input1,
+                                       const TensorInfo& output,
+                                       const ComparisonDescriptor& descriptor,
+                                       Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsConcatSupported(const std::vector<const TensorInfo*> inputs,
+                                   const TensorInfo& output,
+                                   const OriginsDescriptor& descriptor,
+                                   Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsConstantSupported(const TensorInfo& output,
+                                     Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsConvertBf16ToFp32Supported(const TensorInfo& input,
+                                              const TensorInfo& output,
+                                              Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsConvertFp32ToBf16Supported(const TensorInfo& input,
+                                              const TensorInfo& output,
+                                              Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsConvertFp16ToFp32Supported(const TensorInfo& input,
+                                              const TensorInfo& output,
+                                              Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsConvertFp32ToFp16Supported(const TensorInfo& input,
+                                              const TensorInfo& output,
+                                              Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsConvolution2dSupported(const TensorInfo& input,
+                                          const TensorInfo& output,
+                                          const Convolution2dDescriptor& descriptor,
+                                          const TensorInfo& weights,
+                                          const Optional<TensorInfo>& biases,
+                                          Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsDebugSupported(const TensorInfo& input,
+                                  const TensorInfo& output,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsDepthToSpaceSupported(const TensorInfo& input,
+                                         const TensorInfo& output,
+                                         const DepthToSpaceDescriptor& descriptor,
+                                         Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsDepthwiseConvolutionSupported(
+                     const TensorInfo& input,
+                     const TensorInfo& output,
+                     const DepthwiseConvolution2dDescriptor& descriptor,
+                     const TensorInfo& weights,
+                     const Optional<TensorInfo>& biases,
+                     Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsDequantizeSupported(const TensorInfo& input,
+                                       const TensorInfo& output,
+                                       Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsDetectionPostProcessSupported(const TensorInfo& boxEncodings,
+                                                 const TensorInfo& scores,
+                                                 const TensorInfo& anchors,
+                                                 const TensorInfo& detectionBoxes,
+                                                 const TensorInfo& detectionClasses,
+                                                 const TensorInfo& detectionScores,
+                                                 const TensorInfo& numDetections,
+                                                 const DetectionPostProcessDescriptor& descriptor,
+                                                 Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const =0;
+
+    virtual bool IsDilatedDepthwiseConvolutionSupported(
+                    const TensorInfo& input,
+                    const TensorInfo& output,
+                    const DepthwiseConvolution2dDescriptor& descriptor,
+                    const TensorInfo& weights,
+                    const Optional<TensorInfo>& biases,
+                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsDivisionSupported(const TensorInfo& input0,
+                                     const TensorInfo& input1,
+                                     const TensorInfo& output,
+                                     Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsElementwiseUnarySupported(const TensorInfo& input,
+                                             const TensorInfo& output,
+                                             const ElementwiseUnaryDescriptor& descriptor,
+                                             Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsEqualSupported(const TensorInfo& input0,
+                                  const TensorInfo& input1,
+                                  const TensorInfo& output,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsFakeQuantizationSupported(const TensorInfo& input,
+                                             const FakeQuantizationDescriptor& descriptor,
+                                             Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsFillSupported(const TensorInfo& input,
+                                 const TensorInfo& output,
+                                 const FillDescriptor& descriptor,
+                                 Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsFloorSupported(const TensorInfo& input,
+                                  const TensorInfo& output,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsFullyConnectedSupported(const TensorInfo& input,
+                                           const TensorInfo& output,
+                                           const TensorInfo& weights,
+                                           const TensorInfo& biases,
+                                           const FullyConnectedDescriptor& descriptor,
+                                           Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsGatherSupported(const TensorInfo& input0,
+                                   const TensorInfo& input1,
+                                   const TensorInfo& output,
+                                   Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsGatherSupported(const TensorInfo& input0,
+                                   const TensorInfo& input1,
+                                   const TensorInfo& output,
+                                   const GatherDescriptor& descriptor,
+                                   Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsGreaterSupported(const TensorInfo& input0,
+                                    const TensorInfo& input1,
+                                    const TensorInfo& ouput,
+                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsInputSupported(const TensorInfo& input,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsInstanceNormalizationSupported(
+        const TensorInfo& input,
+        const TensorInfo& output,
+        const InstanceNormalizationDescriptor& descriptor,
+        Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsL2NormalizationSupported(const TensorInfo& input,
+                                            const TensorInfo& output,
+                                            const L2NormalizationDescriptor& descriptor,
+                                            Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsLogicalBinarySupported(const TensorInfo& input0,
+                                          const TensorInfo& input1,
+                                          const TensorInfo& output,
+                                          const LogicalBinaryDescriptor& descriptor,
+                                          Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsLogicalUnarySupported(const TensorInfo& input,
+                                         const TensorInfo& output,
+                                         const ElementwiseUnaryDescriptor& descriptor,
+                                         Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsLogSoftmaxSupported(const TensorInfo& input,
+                                       const TensorInfo& output,
+                                       const LogSoftmaxDescriptor& descriptor,
+                                       Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsLstmSupported(const TensorInfo& input,
+                                 const TensorInfo& outputStateIn,
+                                 const TensorInfo& cellStateIn,
+                                 const TensorInfo& scratchBuffer,
+                                 const TensorInfo& outputStateOut,
+                                 const TensorInfo& cellStateOut,
+                                 const TensorInfo& output,
+                                 const LstmDescriptor& descriptor,
+                                 const LstmInputParamsInfo& paramsInfo,
+                                 Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsMaximumSupported(const TensorInfo& input0,
+                                    const TensorInfo& input1,
+                                    const TensorInfo& output,
+                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsMeanSupported(const TensorInfo& input,
+                                 const TensorInfo& output,
+                                 const MeanDescriptor& descriptor,
+                                 Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsMemCopySupported(const TensorInfo& input,
+                                    const TensorInfo& output,
+                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsMemImportSupported(const TensorInfo& input,
+                                      const TensorInfo& output,
+                                      Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsMergeSupported(const TensorInfo& input0,
+                                  const TensorInfo& input1,
+                                  const TensorInfo& output,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsMergerSupported(const std::vector<const TensorInfo*> inputs,
+                                   const TensorInfo& output,
+                                   const OriginsDescriptor& descriptor,
+                                   Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsMinimumSupported(const TensorInfo& input0,
+                                    const TensorInfo& input1,
+                                    const TensorInfo& ouput,
+                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsMultiplicationSupported(const TensorInfo& input0,
+                                           const TensorInfo& input1,
+                                           const TensorInfo& output,
+                                           Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsNormalizationSupported(const TensorInfo& input,
+                                          const TensorInfo& output,
+                                          const NormalizationDescriptor& descriptor,
+                                          Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsOutputSupported(const TensorInfo& output,
+                                   Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsPadSupported(const TensorInfo& input,
+                                const TensorInfo& output,
+                                const PadDescriptor& descriptor,
+                                Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsPermuteSupported(const TensorInfo& input,
+                                    const TensorInfo& output,
+                                    const PermuteDescriptor& descriptor,
+                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsPooling2dSupported(const TensorInfo& input,
+                                      const TensorInfo& output,
+                                      const Pooling2dDescriptor& descriptor,
+                                      Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsPreCompiledSupported(const TensorInfo& input,
+                                        const PreCompiledDescriptor& descriptor,
+                                        Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsPreluSupported(const TensorInfo& input,
+                                  const TensorInfo& alpha,
+                                  const TensorInfo& output,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsQuantizeSupported(const TensorInfo& input,
+                                     const TensorInfo& output,
+                                     Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsQLstmSupported(const TensorInfo& input,
+                                  const TensorInfo& previousOutputIn,
+                                  const TensorInfo& previousCellStateIn,
+                                  const TensorInfo& outputStateOut,
+                                  const TensorInfo& cellStateOut,
+                                  const TensorInfo& output,
+                                  const QLstmDescriptor& descriptor,
+                                  const LstmInputParamsInfo& paramsInfo,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsQuantizedLstmSupported(const TensorInfo& input,
+                                          const TensorInfo& previousCellStateIn,
+                                          const TensorInfo& previousOutputIn,
+                                          const TensorInfo& cellStateOut,
+                                          const TensorInfo& output,
+                                          const QuantizedLstmInputParamsInfo& paramsInfo,
+                                          Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsRankSupported(const TensorInfo& input,
+                                 const TensorInfo& output,
+                                 Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsReduceSupported(const TensorInfo& input,
+                                   const TensorInfo& output,
+                                   const ReduceDescriptor& descriptor,
+                                   Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsReshapeSupported(const TensorInfo& input,
+                                    const TensorInfo& output,
+                                    const ReshapeDescriptor& descriptor,
+                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsResizeBilinearSupported(const TensorInfo& input,
+                                           const TensorInfo& output,
+                                           Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsResizeSupported(const TensorInfo& input,
+                                   const TensorInfo& output,
+                                   const ResizeDescriptor& descriptor,
+                                   Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsRsqrtSupported(const TensorInfo& input,
+                                  const TensorInfo& output,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsSliceSupported(const TensorInfo& input,
+                                  const TensorInfo& output,
+                                  const SliceDescriptor& descriptor,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsSoftmaxSupported(const TensorInfo& input,
+                                    const TensorInfo& output,
+                                    const SoftmaxDescriptor& descriptor,
+                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsSpaceToBatchNdSupported(const TensorInfo& input,
+                                           const TensorInfo& output,
+                                           const SpaceToBatchNdDescriptor& descriptor,
+                                           Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsSpaceToDepthSupported(const TensorInfo& input,
+                                         const TensorInfo& output,
+                                         const SpaceToDepthDescriptor& descriptor,
+                                         Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsSplitterSupported(const TensorInfo& input,
+                                     const ViewsDescriptor& descriptor,
+                                     Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsSplitterSupported(const TensorInfo& input,
+                                     const std::vector<std::reference_wrapper<TensorInfo>>& outputs,
+                                     const ViewsDescriptor& descriptor,
+                                     Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsStackSupported(const std::vector<const TensorInfo*>& inputs,
+                                  const TensorInfo& output,
+                                  const StackDescriptor& descriptor,
+                                  Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsStandInSupported(const std::vector<const TensorInfo*>& inputs,
+                                    const std::vector<const TensorInfo*>& outputs,
+                                    const StandInDescriptor& descriptor,
+                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+
+    virtual bool IsStridedSliceSupported(const TensorInfo& input,
+                                         const TensorInfo& output,
+                                         const StridedSliceDescriptor& descriptor,
+                                         Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsSubtractionSupported(const TensorInfo& input0,
+                                        const TensorInfo& input1,
+                                        const TensorInfo& output,
+                                        Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsSwitchSupported(const TensorInfo& input0,
+                                   const TensorInfo& input1,
+                                   const TensorInfo& output0,
+                                   const TensorInfo& output1,
+                                   Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsTransposeConvolution2dSupported(
+        const TensorInfo& input,
+        const TensorInfo& output,
+        const TransposeConvolution2dDescriptor& descriptor,
+        const TensorInfo& weights,
+        const Optional<TensorInfo>& biases,
+        Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+    virtual bool IsTransposeSupported(const TensorInfo& input,
+                                      const TensorInfo& output,
+                                      const TransposeDescriptor& descriptor,
+                                      Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
+}; // class ILayerSupport
+
+using ILayerSupportSharedPtr = std::shared_ptr<ILayerSupport>;
+
+} // namespace armnn