modified cumsum header && resolve conflict in README.md

Author: chenfeiyue-cfy

include/tim/vx/operation.h

@@ -49,10 +49,16 @@ class Operation {
   std::unique_ptr<OpImpl>& impl();
   const std::unique_ptr<OpImpl>& impl() const;
   virtual const std::vector<std::shared_ptr<Tensor>> ConstantInputsTensor() const;
-  virtual void HandleAfterBindInput(const std::shared_ptr<Tensor>& tensor, int32_t input_idx);
+  
  protected:
   bool IsAllInputsConst() const;
   std::unique_ptr<OpImpl> impl_;
+
+ private:
+// Post processing at the final step on BindInput func
+// - tensor : input tensor  
+// - input_idx: the index of input tensor
+   virtual void OnBindInputPostProc(const std::shared_ptr<Tensor>& tensor, int32_t input_idx); 
 };
 
 }  // namespace vx

include/tim/vx/ops/cumsum.h

@@ -47,11 +47,14 @@ namespace ops {
 class CumSum : public BuiltinOp {
  public:
   CumSum(Graph* Graph, int32_t axis=0, int32_t exclusive=0, int32_t reverse=0);
+  
   std::shared_ptr<Operation> Clone(std::shared_ptr<Graph>& graph) const override;
-  void HandleAfterBindInput(const std::shared_ptr<Tensor>& tensor, int32_t input_idx) override;
 
  protected:
   int32_t axis_, exclusive_, reverse_;
+  
+ private:
+  void OnBindInputPostProc(const std::shared_ptr<Tensor>& tensor, int32_t input_idx) override;
 };
 
 }  // namespace ops

src/tim/vx/operation.cc

@@ -42,7 +42,7 @@ const std::unique_ptr<OpImpl>& Operation::impl() const { return impl_; }
 Operation& Operation::BindInput(const std::shared_ptr<Tensor>& tensor) {
   impl_->BindInput(tensor);
   impl_->graph_->UpdateTensorConsumersMap(tensor, this);
-  HandleAfterBindInput(tensor, impl_->input_tensor_index - 1);
+  OnBindInputPostProc(tensor, impl_->input_tensor_index - 1);
   return *this;
 }
 
@@ -90,7 +90,7 @@ const std::vector<std::shared_ptr<Tensor>> Operation::ConstantInputsTensor() con
     return {};
   }
 }
-void Operation::HandleAfterBindInput(const std::shared_ptr<Tensor>& tensor, int32_t input_idx){
+void Operation::OnBindInputPostProc(const std::shared_ptr<Tensor>& tensor, int32_t input_idx){
   (void) tensor;
   (void) input_idx;
 }

src/tim/vx/ops/README.md

@@ -116,10 +116,12 @@ GroupedConv1d|GROUPED_CONV1D|Mapped|[tf.keras.layers.Conv1D](https://tensorflow.
 Mod|MOD|Mapped|[Onnx.Mod](https://github.com/onnx/onnx/blob/main/docs/Operators.md#Mod)
 Selu|SELU|Mapped|[tf.keras.activations.selu](https://www.tensorflow.org/api_docs/python/tf/keras/activations/selu)
 Celu|CELU|Mapped|[Onnx.celu](https://github.com/onnx/onnx/blob/main/docs/Operators.md#Celu)
+Sign|SIGN|Mapped|[tf.math.sign](https://www.tensorflow.org/api_docs/python/tf/math/sign)
+SoftSign|SOFTSIGN|Mapped|[tf.keras.activations.softsign](https://www.tensorflow.org/api_docs/python/tf/keras/activations/softsign)
+CumSum|CUMSUM|Mapped|[tf.math.cumsum](https://www.tensorflow.org/api_docs/python/tf/math/cumsum)
 Rcp|RCP|Mapped|[tf.math.reciprocal](https://www.tensorflow.org/api_docs/python/tf/math/reciprocal)
 MaxPool3d|MAX_POOL3D|Mapped|[Onnx.MaxPool](https://github.com/onnx/onnx/blob/main/docs/Operators.md#MaxPool)
 |UnidirectionalSequenceRNN|UNIDIRECTIONAL_SEQUENCE_RNN|Planned 22Q3|[ANEURALNETWORKS_UNIDIRECTIONAL_SEQUENCE_RNN](https://developer.android.com/ndk/reference/group/neural-networks#group___neural_networks_1ggaabbe492c60331b13038e39d4207940e0ae11aa1d461d2abaa117f6ee2cb503dd8)
-CumSum|CUMSUM|Mapped|[tf.math.cumsum](https://www.tensorflow.org/api_docs/python/tf/math/cumsum)
 |BidirectionalSequenceRNN|BIDIRECTIONAL_SEQUENCE_RNN|Planned 22Q3|[ANEURALNETWORKS_BIDIRECTIONAL_SEQUENCE_RNN](https://developer.android.com/ndk/reference/group/neural-networks#group___neural_networks_1ggaabbe492c60331b13038e39d4207940e0a487fc5ae247de828f13e62b99f259f3c)
 |BidirectionalSequenceLSTM|BIDIRECTIONAL_SEQUENCE_LSTM|Mapped|[ANEURALNETWORKS_BIDIRECTIONAL_SEQUENCE_LSTM](https://developer.android.com/ndk/reference/group/neural-networks#group___neural_networks_1ggaabbe492c60331b13038e39d4207940e0a492a71cb7aa50b9a1a834a3cb269d778)
 |UnidirectionalSequenceLSTM|LSTM_OVXLIB|Mapped|[ANEURALNETWORKS_UNIDIRECTIONAL_SEQUENCE_LSTM](https://developer.android.com/ndk/reference/group/neural-networks#group___neural_networks_1ggaabbe492c60331b13038e39d4207940e0aaf30e491ad0b1fc7602cbde695b2c859)

src/tim/vx/ops/cumsum.cc

@@ -37,7 +37,7 @@ CumSum::CumSum(Graph* graph, int32_t axis, int32_t exclusive, int32_t reverse)
   this->impl()->node()->nn_param.cumsum.reverse = reverse_;
 }
 
-void CumSum::HandleAfterBindInput(const std::shared_ptr<Tensor>& tensor, int32_t input_idx){
+void CumSum::OnBindInputPostProc(const std::shared_ptr<Tensor>& tensor, int32_t input_idx){
   if (axis_ < 0){
     axis_ += tensor->GetShape().size();
     (void) input_idx;