Decode + RandomCropAndResize = RandomCropDecodeResize

mindspore/ccsrc/dataset/engine/datasetops/dataset_op.h

@@ -27,6 +27,7 @@
 
 namespace mindspore {
 namespace dataset {
+
 // Forward declare
 class ExecutionTree;
 

mindspore/ccsrc/dataset/engine/datasetops/map_op.h

@@ -181,6 +181,13 @@ class MapOp : public ParallelOp {
   // @return Name of the current Op
   std::string Name() const override { return "MapOp"; }
 
+  // List of tensor ops getter/setter
+  // @Return the vector of tensor ops by non-const reference
+
+  auto &TFuncs() { return tfuncs_; }
+
+  const auto &TFuncs() const { return tfuncs_; }
+
  private:
   // Local queues where worker threads can pop from.
   // Popping directly from the Connector can block if the previous designated threads haven't pop.
@@ -188,7 +195,7 @@ class MapOp : public ParallelOp {
   QueueList<std::unique_ptr<DataBuffer>> local_queues_;
 
   // Static variables to be ready by worker threads, no modification and readonly
-  const std::vector<std::shared_ptr<TensorOp>> tfuncs_;
+  std::vector<std::shared_ptr<TensorOp>> tfuncs_;
 
   // Variable to store the column name that the tensorOps are consuming
   std::vector<std::string> in_columns_;

mindspore/ccsrc/dataset/engine/execution_tree.cc

@@ -23,6 +23,7 @@
 #include "dataset/engine/opt/pre/removal_pass.h"
 #include "dataset/engine/opt/pre/cache_transform_pass.h"
 #include "dataset/engine/opt/post/repeat_pass.h"
+#include "mindspore/ccsrc/dataset/engine/opt/optional/tensor_op_fusion_pass.h"
 #include "dataset/engine/perf/profiling.h"
 #include "dataset/engine/perf/monitor.h"
 
@@ -35,6 +36,7 @@ ExecutionTree::ExecutionTree() : id_count_(0) {
   prepare_flags_ = kDePrepNone;
   perf_monitor_ = std::make_unique<Monitor>(this);
   profiling_manager_ = std::make_unique<ProfilingManager>(this);
+  optimize_ = common::GetEnv("OPTIMIZE") == "true" ? true : false;
 }
 
 // Destructor
@@ -202,8 +204,10 @@ Status ExecutionTree::Prepare() {
   // Pre optimization compulsory transformation
   RETURN_IF_NOT_OK(this->PrepareTreePreAction());
 
-  // Optimization transformation
-  RETURN_IF_NOT_OK(this->Optimize());
+  // If optional optimizations are enabled
+  if (optimize_) {
+    RETURN_IF_NOT_OK(this->Optimize());
+  }
 
   // Post optimization compulsory transformation
   RETURN_IF_NOT_OK(this->PrepareTreePostAction());
@@ -248,9 +252,16 @@ Status ExecutionTree::PrepareTreePostAction() {
 }
 
 Status ExecutionTree::Optimize() {
-  //  auto pp = new PrinterPass();
-  //  bool modified = false;
-  //  pp->Run(this, &modified);
+  // Vector of optimizations, currently only 1, add more as necessary
+  std::vector<std::unique_ptr<NodePass>> optimizations;
+  optimizations.push_back(std::make_unique<TensorOpFusionPass>());
+  // vector of flags for each optimization
+  std::vector<bool> modified(optimizations.size(), false);
+  for (auto i = 0; i < optimizations.size(); i++) {
+    auto m = false;
+    optimizations[i]->Run(this, &m);
+    modified[i] = m;
+  }
   return Status::OK();
 }
 

mindspore/ccsrc/dataset/engine/execution_tree.h

@@ -87,6 +87,8 @@ class ExecutionTree {
     // @return Shared pointer to the current operator
     std::shared_ptr<DatasetOp> get() { return nodes_[ind_]; }
 
+    bool operator==(const Iterator &rhs) { return nodes_[ind_] == rhs.nodes_[rhs.ind_]; }
+
     bool operator!=(const Iterator &rhs) { return nodes_[ind_] != rhs.nodes_[rhs.ind_]; }
 
     int32_t NumNodes() { return nodes_.size(); }
@@ -214,6 +216,21 @@ class ExecutionTree {
   // Getter for profiling manager, no ownership
   ProfilingManager *GetProfilingManager() { return profiling_manager_.get(); }
 
+  // Set optional optimization if tree has not been prepared yet
+  Status SetOptimize(bool value) {
+    if (tree_state_ != kDeTStateInit && tree_state_ != kDeTStateBuilding) {
+      std::string optimize = (optimize_ == true) ? "true" : "false";
+      std::string msg = "Tree has already been prepared with OPTIMIZE set to " + optimize;
+      RETURN_STATUS_UNEXPECTED(msg);
+    } else {
+      optimize_ = value;
+      return Status::OK();
+    }
+  }
+
+  // Optional optimizations status
+  bool OptimizationEnabled() const { return optimize_; }
+
  private:
   // A helper functions for doing the recursive printing
   // @param dataset_op - The dataset op to print
@@ -230,7 +247,10 @@ class ExecutionTree {
   TreeState tree_state_;                                 // Tracking the current tree state
   std::unique_ptr<Monitor> perf_monitor_;                // Performance Monitor
   std::unique_ptr<ProfilingManager> profiling_manager_;  // Profiling manager
+  bool optimize_;                                        // Flag to enable optional optimizations
 };
+
+inline bool operator==(const ExecutionTree::Iterator &lhs, const ExecutionTree::Iterator &rhs) { return lhs == rhs; }
 }  // namespace dataset
 }  // namespace mindspore
 

mindspore/ccsrc/dataset/engine/opt/CMakeLists.txt

@@ -7,5 +7,6 @@ add_library(engine-opt OBJECT
           pre/cache_transform_pass.cc
           pre/removal_nodes.cc
           pre/removal_pass.cc
+          optional/tensor_op_fusion_pass.cc
           util/printer_pass.cc
         )

mindspore/ccsrc/dataset/engine/opt/optional/tensor_op_fusion_pass.cc

@@ -0,0 +1,58 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <memory>
+#include "dataset/engine/opt/optional/tensor_op_fusion_pass.h"
+#include "dataset/kernels/image/decode_op.h"
+#include "dataset/engine/datasetops/map_op.h"
+#include "dataset/kernels/image/random_crop_decode_resize_op.h"
+
+namespace mindspore {
+namespace dataset {
+
+Status TensorOpFusionPass::RunOnNode(std::shared_ptr<MapOp> node, bool *modified) {
+  // Most primitive pattern: DecodeOp immediately followed by RandomCropAndResizeOp
+  // Abstract into a more general member function that can find any pattern, expressed
+  // by regular expressions, for instance.
+  // Add a list of optimisation policies. For now, just this lambda
+  auto FindPattern = [](auto &tfuncs) {
+    auto it =
+      std::find_if(tfuncs.begin(), tfuncs.end(), [](const auto &tf) -> bool { return tf->Name() == kDecodeOp; });
+    auto next = it + 1;
+    if (it != tfuncs.end() && next != tfuncs.end() && (*next)->Name() == kRandomCropAndResizeOp) {
+      return it;
+    } else {
+      return tfuncs.end();
+    }
+  };
+
+  auto &tfuncs = node->TFuncs();
+  auto it = FindPattern(tfuncs);
+  if (it != tfuncs.end()) {
+    auto next = it + 1;
+    auto op = static_cast<RandomCropAndResizeOp *>(next->get());
+    *it = std::static_pointer_cast<TensorOp>(std::make_shared<RandomCropDecodeResizeOp>(*op));
+    tfuncs.erase(next);
+  }
+  if (modified != nullptr) {
+    *modified = true;
+  } else {
+    RETURN_STATUS_UNEXPECTED("modified is nullptr");
+  }
+  return Status::OK();
+}
+}  // namespace dataset
+}  // namespace mindspore

mindspore/ccsrc/dataset/engine/opt/optional/tensor_op_fusion_pass.h

@@ -0,0 +1,38 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef DATASET_TENSOR_OP_FUSION_PASS_H_
+#define DATASET_TENSOR_OP_FUSION_PASS_H_
+
+#include <memory>
+#include "dataset/engine/opt/pass.h"
+
+namespace mindspore {
+namespace dataset {
+
+/// \class TensorOpFusionPass tensor_op_fusion_pass.h
+/// \brief And optional optimization pass identifying and fusing
+///     tensor ops within MapOp
+class TensorOpFusionPass : public NodePass {
+  /// \brief Identifies and fuses tensor ops within MapOp
+  /// \param[in] node The node being visited
+  /// \param[inout] *modified indicates whether the node has been visited
+  /// \return Status The error code return
+  Status RunOnNode(std::shared_ptr<MapOp> node, bool *modified) override;
+};
+}  // namespace dataset
+}  // namespace mindspore
+
+#endif  // DATASET_TENSOR_OP_FUSION_PASS_H_

mindspore/ccsrc/dataset/kernels/data/concatenate_op.h

@@ -55,6 +55,8 @@ class ConcatenateOp : public TensorOp {
   /// Number of inputs the tensor operation accepts
   uint32_t NumInput() override { return 0; }
 
+  std::string Name() const override { return kConcatenateOp; }
+
  private:
   int8_t axis_;
   std::shared_ptr<Tensor> prepend_;

mindspore/ccsrc/dataset/kernels/data/data_utils.cc

@@ -127,7 +127,7 @@ Status Fill(const std::shared_ptr<Tensor> input, std::shared_ptr<Tensor> *output
   std::shared_ptr<Tensor> out, fill_output;
 
   if (input_type != DataType::DE_STRING && fill_type != DataType::DE_STRING && input_type != fill_type) {
-    std::unique_ptr<TypeCastOp> op(new TypeCastOp(input_type));
+    auto op = std::make_unique<TypeCastOp>(input_type);
     RETURN_IF_NOT_OK(op->Compute(fill_value, &fill_output));
   } else {
     fill_output = fill_value;

mindspore/ccsrc/dataset/kernels/data/duplicate_op.h

@@ -18,6 +18,7 @@
 
 #include <vector>
 #include <memory>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -36,6 +37,8 @@ class DuplicateOp : public TensorOp {
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
   uint32_t NumOutput() override { return 2; }
+
+  std::string Name() const override { return kDuplicateOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/data/fill_op.h

@@ -35,6 +35,8 @@ class FillOp : public TensorOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kFillOp; }
+
  private:
   std::shared_ptr<Tensor> fill_value_;
 };

mindspore/ccsrc/dataset/kernels/data/mask_op.h

@@ -43,6 +43,8 @@ class MaskOp : public TensorOp {
 
   Status OutputType(const std::vector<DataType> &inputs, std::vector<DataType> &outputs) override;
 
+  std::string Name() const override { return kMaskOp; }
+
  private:
   RelationalOp op_;
   std::shared_ptr<Tensor> value_;

mindspore/ccsrc/dataset/kernels/data/one_hot_op.h

@@ -37,6 +37,8 @@ class OneHotOp : public TensorOp {
 
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
 
+  std::string Name() const override { return kOneHotOp; }
+
  private:
   int num_classes_;
 };

mindspore/ccsrc/dataset/kernels/data/pad_end_op.h

@@ -38,6 +38,8 @@ class PadEndOp : public TensorOp {
 
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
 
+  std::string Name() const override { return kPadEndOp; }
+
  private:
   TensorShape output_shape_;
   std::shared_ptr<Tensor> pad_val_;

mindspore/ccsrc/dataset/kernels/data/slice_op.h

@@ -71,6 +71,8 @@ class SliceOp : public TensorOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kSliceOp; }
+
  private:
   // only on of the following will be valid
   // given indices to slice the Tensor. Empty vector if invalid.

mindspore/ccsrc/dataset/kernels/data/to_float16_op.h

@@ -42,6 +42,8 @@ class ToFloat16Op : public TensorOp {
   void Print(std::ostream &out) const override { out << "ToFloat16Op"; }
 
   Status OutputType(const std::vector<DataType> &inputs, std::vector<DataType> &outputs) override;
+
+  std::string Name() const override { return kToFloat16Op; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/data/type_cast_op.h

@@ -42,6 +42,8 @@ class TypeCastOp : public TensorOp {
   void Print(std::ostream &out) const override { out << "TypeCastOp"; }
   Status OutputType(const std::vector<DataType> &inputs, std::vector<DataType> &outputs) override;
 
+  std::string Name() const override { return kTypeCastOp; }
+
  private:
   DataType type_;
 };

mindspore/ccsrc/dataset/kernels/image/bounding_box_augment_op.h

@@ -20,6 +20,7 @@
 #include <memory>
 #include <random>
 #include <cstdlib>
+#include <string>
 #include <opencv2/imgproc/imgproc.hpp>
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -50,6 +51,8 @@ class BoundingBoxAugmentOp : public TensorOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kBoundingBoxAugmentOp; }
+
  private:
   float ratio_;
   std::mt19937 rnd_;

mindspore/ccsrc/dataset/kernels/image/center_crop_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -39,6 +40,8 @@ class CenterCropOp : public TensorOp {
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
 
+  std::string Name() const override { return kCenterCropOp; }
+
  private:
   int32_t crop_het_;
   int32_t crop_wid_;

mindspore/ccsrc/dataset/kernels/image/cut_out_op.h

@@ -61,6 +61,8 @@ class CutOutOp : public TensorOp {
   // @return Status - The error code return
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kCutOutOp; }
+
  private:
   std::mt19937 rnd_;
   int32_t box_height_;

mindspore/ccsrc/dataset/kernels/image/decode_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -40,6 +41,8 @@ class DecodeOp : public TensorOp {
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
   Status OutputType(const std::vector<DataType> &inputs, std::vector<DataType> &outputs) override;
 
+  std::string Name() const override { return kDecodeOp; }
+
  private:
   bool is_rgb_format_ = true;
 };

mindspore/ccsrc/dataset/kernels/image/hwc_to_chw_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -31,6 +32,8 @@ class HwcToChwOp : public TensorOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
+
+  std::string Name() const override { return kHwcToChwOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/image/image_utils.cc

@@ -311,7 +311,7 @@ Status JpegCropAndDecode(const std::shared_ptr<Tensor> &input, std::shared_ptr<T
   TensorShape ts = TensorShape({crop_h, crop_w, kOutNumComponents});
   auto output_tensor = std::make_shared<Tensor>(ts, DataType(DataType::DE_UINT8));
   const int buffer_size = output_tensor->SizeInBytes();
-  JSAMPLE *buffer = static_cast<JSAMPLE *>(reinterpret_cast<uchar *>(&(*output_tensor->begin<uint8_t>())));
+  JSAMPLE *buffer = reinterpret_cast<JSAMPLE *>(&(*output_tensor->begin<uint8_t>()));
   const int max_scanlines_to_read = skipped_scanlines + crop_h;
   // stride refers to output tensor, which has 3 components at most
   const int stride = crop_w * kOutNumComponents;

mindspore/ccsrc/dataset/kernels/image/normalize_op.h

@@ -17,6 +17,7 @@
 #define DATASET_KERNELS_IMAGE_NORMALIZE_OP_H_
 
 #include <memory>
+#include <string>
 
 #include "dataset/core/cv_tensor.h"
 #include "dataset/core/tensor.h"
@@ -35,6 +36,8 @@ class NormalizeOp : public TensorOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kNormalizeOp; }
+
  private:
   std::shared_ptr<CVTensor> mean_;
   std::shared_ptr<CVTensor> std_;

mindspore/ccsrc/dataset/kernels/image/pad_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -53,6 +54,8 @@ class PadOp : public TensorOp {
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
 
+  std::string Name() const override { return kPadOp; }
+
  private:
   int32_t pad_top_;
   int32_t pad_bottom_;

mindspore/ccsrc/dataset/kernels/image/random_color_adjust_op.h

@@ -57,6 +57,8 @@ class RandomColorAdjustOp : public TensorOp {
   // @return Status - The error code return.
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kRandomColorAdjustOp; }
+
  private:
   std::mt19937 rnd_;
   float bright_factor_start_;

mindspore/ccsrc/dataset/kernels/image/random_crop_and_resize_op.h

@@ -19,6 +19,7 @@
 #include <memory>
 #include <random>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/image/image_utils.h"
@@ -41,6 +42,12 @@ class RandomCropAndResizeOp : public TensorOp {
                         float scale_ub = kDefScaleUb, float aspect_lb = kDefAspectLb, float aspect_ub = kDefAspectUb,
                         InterpolationMode interpolation = kDefInterpolation, int32_t max_iter = kDefMaxIter);
 
+  RandomCropAndResizeOp() = default;
+
+  RandomCropAndResizeOp(const RandomCropAndResizeOp &rhs) = default;
+
+  RandomCropAndResizeOp(RandomCropAndResizeOp &&rhs) = default;
+
   ~RandomCropAndResizeOp() override = default;
 
   void Print(std::ostream &out) const override {
@@ -52,6 +59,8 @@ class RandomCropAndResizeOp : public TensorOp {
 
   Status GetCropBox(int h_in, int w_in, int *x, int *y, int *crop_height, int *crop_width);
 
+  std::string Name() const override { return kRandomCropAndResizeOp; }
+
  protected:
   int32_t target_height_;
   int32_t target_width_;

mindspore/ccsrc/dataset/kernels/image/random_crop_and_resize_with_bbox_op.h

@@ -17,6 +17,7 @@
 #define DATASET_KERNELS_IMAGE_RANDOM_CROP_AND_RESIZE_WITH_BBOX_OP_H_
 
 #include "dataset/kernels/image/random_crop_and_resize_op.h"
+#include <string>
 
 namespace mindspore {
 namespace dataset {
@@ -39,6 +40,8 @@ class RandomCropAndResizeWithBBoxOp : public RandomCropAndResizeOp {
   }
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
+
+  std::string Name() const override { return kRandomCropAndResizeWithBBoxOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/image/random_crop_decode_resize_op.h

@@ -35,6 +35,8 @@ class RandomCropDecodeResizeOp : public RandomCropAndResizeOp {
                            float scale_ub = kDefScaleUb, float aspect_lb = kDefAspectLb, float aspect_ub = kDefAspectUb,
                            InterpolationMode interpolation = kDefInterpolation, int32_t max_iter = kDefMaxIter);
 
+  explicit RandomCropDecodeResizeOp(const RandomCropAndResizeOp &rhs) : RandomCropAndResizeOp(rhs) {}
+
   ~RandomCropDecodeResizeOp() override = default;
 
   void Print(std::ostream &out) const override {
@@ -43,6 +45,8 @@ class RandomCropDecodeResizeOp : public RandomCropAndResizeOp {
   }
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
+
+  std::string Name() const override { return kRandomCropDecodeResizeOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/image/random_crop_op.h

@@ -19,6 +19,7 @@
 #include <memory>
 #include <random>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -45,6 +46,10 @@ class RandomCropOp : public TensorOp {
                BorderType border_types = kDefBorderType, bool pad_if_needed = kDefPadIfNeeded,
                uint8_t fill_r = kDefFillR, uint8_t fill_g = kDefFillG, uint8_t fill_b = kDefFillB);
 
+  RandomCropOp(const RandomCropOp &rhs) = default;
+
+  RandomCropOp(RandomCropOp &&rhs) = default;
+
   ~RandomCropOp() override = default;
 
   void Print(std::ostream &out) const override { out << "RandomCropOp: " << crop_height_ << " " << crop_width_; }
@@ -72,6 +77,8 @@ class RandomCropOp : public TensorOp {
 
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
 
+  std::string Name() const override { return kRandomCropOp; }
+
  protected:
   int32_t crop_height_ = 0;
   int32_t crop_width_ = 0;

mindspore/ccsrc/dataset/kernels/image/random_crop_with_bbox_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <vector>
+#include <string>
 
 #include "dataset/kernels/image/random_crop_op.h"
 
@@ -41,6 +42,8 @@ class RandomCropWithBBoxOp : public RandomCropOp {
   }
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
+
+  std::string Name() const override { return kRandomCropWithBBoxOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/image/random_horizontal_flip_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <random>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -47,6 +48,8 @@ class RandomHorizontalFlipOp : public TensorOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kRandomHorizontalFlipOp; }
+
  private:
   std::mt19937 rnd_;
   std::bernoulli_distribution distribution_;

mindspore/ccsrc/dataset/kernels/image/random_horizontal_flip_with_bbox_op.h

@@ -19,6 +19,7 @@
 #include <memory>
 #include <random>
 #include <cstdlib>
+#include <string>
 #include <opencv2/imgproc/imgproc.hpp>
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -48,6 +49,8 @@ class RandomHorizontalFlipWithBBoxOp : public TensorOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kRandomHorizontalFlipWithBBoxOp; }
+
  private:
   std::mt19937 rnd_;
   std::bernoulli_distribution distribution_;

mindspore/ccsrc/dataset/kernels/image/random_resize_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <random>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/image/resize_op.h"
@@ -45,6 +46,8 @@ class RandomResizeOp : public ResizeOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kRandomResizeOp; }
+
  private:
   std::mt19937 random_generator_;
   std::uniform_int_distribution<int> distribution_{0, 3};

mindspore/ccsrc/dataset/kernels/image/random_resize_with_bbox_op.h

@@ -19,6 +19,7 @@
 
 #include <memory>
 #include <random>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/image/resize_op.h"
@@ -46,6 +47,8 @@ class RandomResizeWithBBoxOp : public ResizeWithBBoxOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kRandomResizeWithBBoxOp; }
+
  private:
   std::mt19937 random_generator_;
   std::uniform_int_distribution<int> distribution_{0, 3};

mindspore/ccsrc/dataset/kernels/image/random_rotation_op.h

@@ -19,6 +19,7 @@
 #include <memory>
 #include <random>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -68,6 +69,8 @@ class RandomRotationOp : public TensorOp {
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
 
+  std::string Name() const override { return kRandomRotationOp; }
+
  private:
   float degree_start_;
   float degree_end_;

mindspore/ccsrc/dataset/kernels/image/random_vertical_flip_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <random>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -41,6 +42,8 @@ class RandomVerticalFlipOp : public TensorOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kRandomVerticalFlipOp; }
+
  private:
   std::mt19937 rnd_;
   std::bernoulli_distribution distribution_;

mindspore/ccsrc/dataset/kernels/image/random_vertical_flip_with_bbox_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <random>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -42,6 +43,8 @@ class RandomVerticalFlipWithBBoxOp : public TensorOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kRandomVerticalFlipWithBBoxOp; }
+
  private:
   std::mt19937 rnd_;
   std::bernoulli_distribution distribution_;

mindspore/ccsrc/dataset/kernels/image/rescale_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -38,6 +39,8 @@ class RescaleOp : public TensorOp {
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
   Status OutputType(const std::vector<DataType> &inputs, std::vector<DataType> &outputs) override;
 
+  std::string Name() const override { return kRescaleOp; }
+
  private:
   float rescale_;
   float shift_;

mindspore/ccsrc/dataset/kernels/image/resize_bilinear_op.h

@@ -51,6 +51,8 @@ class ResizeBilinearOp : public ResizeOp {
   // Name: Print()
   // Description: A function that prints info about the node
   void Print(std::ostream &out) const override;
+
+  std::string Name() const override { return kResizeBilinearOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/image/resize_op.h

@@ -18,6 +18,7 @@
 
 #include <memory>
 #include <vector>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/image/image_utils.h"
@@ -43,6 +44,10 @@ class ResizeOp : public TensorOp {
   explicit ResizeOp(int32_t size1, int32_t size2 = kDefWidth, InterpolationMode mInterpolation = kDefInterpolation)
       : size1_(size1), size2_(size2), interpolation_(mInterpolation) {}
 
+  ResizeOp(const ResizeOp &rhs) = default;
+
+  ResizeOp(ResizeOp &&rhs) = default;
+
   ~ResizeOp() override = default;
 
   void Print(std::ostream &out) const override { out << "ResizeOp: " << size1_ << " " << size2_; }
@@ -50,6 +55,8 @@ class ResizeOp : public TensorOp {
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
   Status OutputShape(const std::vector<TensorShape> &inputs, std::vector<TensorShape> &outputs) override;
 
+  std::string Name() const override { return kResizeOp; }
+
  protected:
   int32_t size1_;
   int32_t size2_;

mindspore/ccsrc/dataset/kernels/image/resize_with_bbox_op.h

@@ -16,6 +16,7 @@
 #ifndef DATASET_KERNELS_IMAGE_RESIZE_WITH_BBOX_OP_H
 #define DATASET_KERNELS_IMAGE_RESIZE_WITH_BBOX_OP_H
 
+#include <string>
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/image/image_utils.h"
 #include "dataset/kernels/tensor_op.h"
@@ -36,6 +37,8 @@ class ResizeWithBBoxOp : public ResizeOp {
   void Print(std::ostream &out) const override { out << "ResizeWithBBoxOp: " << size1_ << " " << size2_; }
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
+
+  std::string Name() const override { return kResizeWithBBoxOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/image/uniform_aug_op.h

@@ -46,6 +46,8 @@ class UniformAugOp : public TensorOp {
   // @return Status - The error code return
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kUniformAugOp; }
+
  private:
   int32_t num_ops_;
   std::vector<std::shared_ptr<TensorOp>> tensor_op_list_;

mindspore/ccsrc/dataset/kernels/no_op.h

@@ -17,6 +17,7 @@
 #define DATASET_KERNELS_NO_OP_H_
 
 #include <memory>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -31,6 +32,8 @@ class NoOp : public TensorOp {
   }
 
   void Print(std::ostream &out) const override { out << "NoOp"; };
+
+  std::string Name() const override { return kNoOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/kernels/py_func_op.h

@@ -20,6 +20,7 @@
 #include <memory>
 #include <vector>
 #include <utility>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -38,6 +39,8 @@ class __attribute__((visibility("hidden"))) PyFuncOp : public TensorOp {
   // Compute function for n-n mapping.
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kPyFuncOp; }
+
  private:
   py::function py_func_ptr_;
 };

mindspore/ccsrc/dataset/kernels/tensor_op.h

@@ -85,6 +85,66 @@
 
 namespace mindspore {
 namespace dataset {
+
+// image
+constexpr char kBoundingBoxAugmentOp[] = "BoundingBoxAugmentOp";
+constexpr char kDecodeOp[] = "DecodeOp";
+constexpr char kCenterCropOp[] = "CenterCropOp";
+constexpr char kCutOutOp[] = "CutOutOp";
+constexpr char kHwcToChwOp[] = "HwcToChwOp";
+constexpr char kNormalizeOp[] = "NormalizeOp";
+constexpr char kPadOp[] = "PadOp";
+constexpr char kRandomColorAdjustOp[] = "RandomColorAdjustOp";
+constexpr char kRandomCropAndResizeOp[] = "RandomCropAndResizeOp";
+constexpr char kRandomCropAndResizeWithBBoxOp[] = "RandomCropAndResizeWithBBoxOp";
+constexpr char kRandomCropDecodeResizeOp[] = "RandomCropDecodeResizeOp";
+constexpr char kRandomCropOp[] = "RandomCropOp";
+constexpr char kRandomCropWithBBoxOp[] = "RandomCropWithBBoxOp";
+constexpr char kRandomHorizontalFlipWithBBoxOp[] = "RandomHorizontalFlipWithBBoxOp";
+constexpr char kRandomHorizontalFlipOp[] = "RandomHorizontalFlipOp";
+constexpr char kRandomResizeOp[] = "RandomResizeOp";
+constexpr char kRandomResizeWithBBoxOp[] = "RandomResizeWithBBoxOp";
+constexpr char kRandomRotationOp[] = "RandomRotationOp";
+constexpr char kRandomVerticalFlipOp[] = "RandomVerticalFlipOp";
+constexpr char kRandomVerticalFlipWithBBoxOp[] = "RandomVerticalFlipWithBBoxOp";
+constexpr char kRescaleOp[] = "RescaleOp";
+constexpr char kResizeBilinearOp[] = "ResizeBilinearOp";
+constexpr char kResizeOp[] = "ResizeOp";
+constexpr char kResizeWithBBoxOp[] = "ResizeWithBBoxOp";
+constexpr char kUniformAugOp[] = "UniformAugOp";
+
+// text
+constexpr char kBasicTokenizerOp[] = "BasicTokenizerOp";
+constexpr char kBertTokenizerOp[] = "BertTokenizerOp";
+constexpr char kCaseFoldOp[] = "CaseFoldOp";
+constexpr char kJiebaTokenizerOp[] = "JiebaTokenizerOp";
+constexpr char kLookupOp[] = "LookupOp";
+constexpr char kNgramOp[] = "NgramOp";
+constexpr char kNormalizeUTF8Op[] = "NormalizeUTF8Op";
+constexpr char kRegexReplaceOp[] = "RegexReplaceOp";
+constexpr char kRegexTokenizerOp[] = "RegexTokenizerOp";
+constexpr char kToNumberOp[] = "ToNumberOp";
+constexpr char kTruncateSequencePairOp[] = "TruncateSequencePairOp";
+constexpr char kUnicodeCharTokenizerOp[] = "UnicodeCharTokenizerOp";
+constexpr char kUnicodeScriptTokenizerOp[] = "UnicodeScriptTokenizerOp";
+constexpr char kWhitespaceTokenizerOp[] = "WhitespaceTokenizerOp";
+constexpr char kWordpieceTokenizerOp[] = "WordpieceTokenizerOp";
+
+// data
+constexpr char kConcatenateOp[] = "kConcatenateOp";
+constexpr char kDuplicateOp[] = "DuplicateOp";
+constexpr char kFillOp[] = "FillOp";
+constexpr char kMaskOp[] = "MaskOp";
+constexpr char kOneHotOp[] = "OneHotOp";
+constexpr char kPadEndOp[] = "PadEndOp";
+constexpr char kSliceOp[] = "SliceOp";
+constexpr char kToFloat16Op[] = "ToFloat16Op";
+constexpr char kTypeCastOp[] = "TypeCastOp";
+
+// other
+constexpr char kPyFuncOp[] = "PyFuncOp";
+constexpr char kNoOp[] = "NoOp";
+
 // A class that does a computation on  a Tensor
 class TensorOp {
  public:
@@ -143,6 +203,8 @@ class TensorOp {
   // @param outputs out: vector of the types of the output tensors to be filled.
   // @return Status
   virtual Status OutputType(const std::vector<DataType> &inputs, std::vector<DataType> &outputs);
+
+  virtual std::string Name() const = 0;
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/text/kernels/basic_tokenizer_op.h

@@ -54,6 +54,8 @@ class BasicTokenizerOp : public TensorOp {
                                     std::string *outupt);
   Status CaseFoldWithoutUnusedWords(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output);
 
+  std::string Name() const override { return kBasicTokenizerOp; }
+
  private:
   static const char kCommonPattern[];
   static const char kUnusedPattern[];

mindspore/ccsrc/dataset/text/kernels/bert_tokenizer_op.h

@@ -46,6 +46,8 @@ class BertTokenizerOp : public TensorOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kBertTokenizerOp; }
+
  private:
   WordpieceTokenizerOp wordpiece_tokenizer_;
   BasicTokenizerOp basic_tokenizer_;

mindspore/ccsrc/dataset/text/kernels/case_fold_op.h

@@ -16,6 +16,7 @@
 #ifndef DATASET_TEXT_KERNELS_CASE_FOLD_OP_H_
 #define DATASET_TEXT_KERNELS_CASE_FOLD_OP_H_
 #include <memory>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -33,6 +34,8 @@ class CaseFoldOp : public TensorOp {
   void Print(std::ostream &out) const override { out << "CaseFoldOp"; }
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
+
+  std::string Name() const override { return kCaseFoldOp; }
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/dataset/text/kernels/jieba_tokenizer_op.h

@@ -57,6 +57,8 @@ class JiebaTokenizerOp : public TensorOp {
   // @tag [Default ""] the tag of the word to be added.
   Status AddWord(const std::string &word, int freq = 0);
 
+  std::string Name() const override { return kJiebaTokenizerOp; }
+
  protected:
   std::string hmm_model_path_;
   std::string mp_dict_path_;

mindspore/ccsrc/dataset/text/kernels/lookup_op.h

@@ -20,6 +20,7 @@
 #include <memory>
 #include <vector>
 #include <utility>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -52,6 +53,8 @@ class LookupOp : public TensorOp {
   // @return error code
   Status OutputType(const std::vector<DataType> &inputs, std::vector<DataType> &outputs) override;
 
+  std::string Name() const override { return kLookupOp; }
+
  private:
   std::shared_ptr<Vocab> vocab_;
   WordIdType default_id_;

mindspore/ccsrc/dataset/text/kernels/ngram_op.h

@@ -58,6 +58,8 @@ class NgramOp : public TensorOp {
   // @param std::ostream &out
   void Print(std::ostream &out) const override;
 
+  std::string Name() const override { return kNgramOp; }
+
  private:
   std::vector<int32_t> ngrams_;  // list of n grams
   int32_t l_len_;                // left padding length

mindspore/ccsrc/dataset/text/kernels/normalize_utf8_op.h

@@ -16,6 +16,7 @@
 #ifndef DATASET_TEXT_KERNELS_NORMALIZE_UTF8_OP_H_
 #define DATASET_TEXT_KERNELS_NORMALIZE_UTF8_OP_H_
 #include <memory>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -42,6 +43,8 @@ class NormalizeUTF8Op : public TensorOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kNormalizeUTF8Op; }
+
  private:
   NormalizeForm normalize_form_;
 };

mindspore/ccsrc/dataset/text/kernels/regex_replace_op.h

@@ -42,6 +42,8 @@ class RegexReplaceOp : public TensorOp {
 
   Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override;
 
+  std::string Name() const override { return kRegexReplaceOp; }
+
  protected:
   Status RegexReplace(icu::RegexMatcher *const matcher, const std::string_view &text, std::string *out) const;
 

mindspore/ccsrc/dataset/text/kernels/regex_tokenizer_op.h

@@ -53,6 +53,8 @@ class RegexTokenizerOp : public TensorOp {
   Status GetRegexTokens(const std::string &text, std::vector<std::string> *out_tokens,
                         std::vector<uint32_t> *offsets_start, std::vector<uint32_t> *offsets_limit) const;
 
+  std::string Name() const override { return kRegexTokenizerOp; }
+
  private:
   const icu::UnicodeString delim_pattern_;
   const icu::UnicodeString keep_delim_pattern_;

mindspore/ccsrc/dataset/text/kernels/to_number_op.h

@@ -57,6 +57,8 @@ class ToNumberOp : public TensorOp {
   // @param std::ostream &out
   void Print(std::ostream &out) const override;
 
+  std::string Name() const override { return kToNumberOp; }
+
  private:
   template <typename T>
   Status ToSignedIntegral(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output);

mindspore/ccsrc/dataset/text/kernels/truncate_sequence_pair_op.h

@@ -40,6 +40,8 @@ class TruncateSequencePairOp : public TensorOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kTruncateSequencePairOp; }
+
  private:
   dsize_t max_length_;
 };

mindspore/ccsrc/dataset/text/kernels/unicode_char_tokenizer_op.h

@@ -16,6 +16,7 @@
 #ifndef DATASET_TEXT_KERNELS_UNICODE_CHAR_TOKENIZER_OP_H_
 #define DATASET_TEXT_KERNELS_UNICODE_CHAR_TOKENIZER_OP_H_
 #include <memory>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -36,6 +37,8 @@ class UnicodeCharTokenizerOp : public TensorOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kUnicodeCharTokenizerOp; }
+
  private:
   bool with_offsets_;
 };

mindspore/ccsrc/dataset/text/kernels/unicode_script_tokenizer_op.h

@@ -16,6 +16,7 @@
 #ifndef DATASET_TEXT_KERNELS_UNICODE_SCRIPT_TOKENIZER_OP_H_
 #define DATASET_TEXT_KERNELS_UNICODE_SCRIPT_TOKENIZER_OP_H_
 #include <memory>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -39,6 +40,8 @@ class UnicodeScriptTokenizerOp : public TensorOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kUnicodeScriptTokenizerOp; }
+
  private:
   bool keep_whitespace_;  // If or not keep whitespace tokens
   bool with_offsets_;

mindspore/ccsrc/dataset/text/kernels/whitespace_tokenizer_op.h

@@ -16,6 +16,7 @@
 #ifndef DATASET_TEXT_KERNELS_WHITESPACE_TOKENIZER_OP_H_
 #define DATASET_TEXT_KERNELS_WHITESPACE_TOKENIZER_OP_H_
 #include <memory>
+#include <string>
 
 #include "dataset/core/tensor.h"
 #include "dataset/kernels/tensor_op.h"
@@ -36,6 +37,8 @@ class WhitespaceTokenizerOp : public TensorOp {
 
   Status Compute(const TensorRow &input, TensorRow *output) override;
 
+  std::string Name() const override { return kWhitespaceTokenizerOp; }
+
  private:
   bool with_offsets_;
 };

mindspore/ccsrc/dataset/text/kernels/wordpiece_tokenizer_op.h

@@ -58,6 +58,8 @@ class WordpieceTokenizerOp : public TensorOp {
   Status GetTokens(const std::string &input_token, const uint32_t &basic_start, std::vector<std::string> *out_tokens,
                    std::vector<uint32_t> *offsets_start, std::vector<uint32_t> *offsets_limit) const;
 
+  std::string Name() const override { return kWordpieceTokenizerOp; }
+
  private:
   const std::shared_ptr<Vocab> vocab_;
   const std::string suffix_indicator_;

tests/ut/cpp/dataset/CMakeLists.txt

@@ -55,7 +55,7 @@ SET(DE_UT_SRCS
         resize_bilinear_op_test.cc
         resize_op_test.cc
         resize_with_bbox_op_test.cc
-	schema_test.cc
+	    schema_test.cc
         shuffle_op_test.cc
         stand_alone_samplers_test.cc
         status_test.cc
@@ -91,6 +91,7 @@ SET(DE_UT_SRCS
         cyclic_array_test.cc
         perf_data_test.cc
         c_api_test.cc
+		tensor_op_fusion_pass_test.cc
         )
 
 add_executable(de_ut_tests ${DE_UT_SRCS})

tests/ut/cpp/dataset/map_op_test.cc

@@ -17,6 +17,7 @@
 #include <memory>
 #include <vector>
 
+
 #include "common/common.h"
 #include "dataset/core/client.h"
 #include "dataset/core/tensor.h"
@@ -35,93 +36,99 @@ namespace dataset {
 namespace test {
 class NoOp : public TensorOp {
  public:
-    NoOp() {};
+  NoOp(){};
+
+  ~NoOp(){};
 
-    ~NoOp() {};
+  Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override {
+    *output = std::move(input);
+    return Status::OK();
+  };
 
-    Status Compute(const std::shared_ptr<Tensor> &input, std::shared_ptr<Tensor> *output) override {
-      *output = std::move(input);
-      return Status::OK();
-    };
+  void Print(std::ostream &out) const override { out << "NoOp"; };
 
-    void Print(std::ostream &out) const override { out << "NoOp"; };
+  std::string Name() const override { return kNoOp; }
 };
 
 class ThreeToOneOp : public TensorOp {
  public:
-    ThreeToOneOp() {};
+  ThreeToOneOp(){};
+
+  ~ThreeToOneOp(){};
 
-    ~ThreeToOneOp() {};
+  uint32_t NumInput() override { return 3; }
+  // Compute function that holds the actual implementation of the operation.
+  Status Compute(const TensorRow &input, TensorRow *output) override {
+    output->push_back(input[0]);
+    return Status::OK();
+  };
 
-    uint32_t NumInput() override { return 3; }
-    // Compute function that holds the actual implementation of the operation.
-    Status Compute(const TensorRow &input, TensorRow *output) override {
-      output->push_back(input[0]);
-      return Status::OK();
-    };
+  void Print(std::ostream &out) const override { out << "ThreeToOneOp"; };
 
-    void Print(std::ostream &out) const override { out << "ThreeToOneOp"; };
+  std::string Name() const override { return "ThreeToOneOp"; }
 };
 
 class OneToThreeOp : public TensorOp {
  public:
-    OneToThreeOp() {};
+  OneToThreeOp(){};
 
-    ~OneToThreeOp() {};
+  ~OneToThreeOp(){};
 
   uint32_t NumOutput() override { return 3; }
 
-    // Compute function that holds the actual implementation of the operation.
-    // Simply pushing the same shared pointer of the first element of input vector three times.
-    Status Compute(const TensorRow &input, TensorRow *output) override {
-      output->push_back(input[0]);
-      output->push_back(input[0]);
-      output->push_back(input[0]);
-      return Status::OK();
-    };
+  // Compute function that holds the actual implementation of the operation.
+  // Simply pushing the same shared pointer of the first element of input vector three times.
+  Status Compute(const TensorRow &input, TensorRow *output) override {
+    output->push_back(input[0]);
+    output->push_back(input[0]);
+    output->push_back(input[0]);
+    return Status::OK();
+  };
 
-    void Print(std::ostream &out) const override { out << "OneToThreeOp"; };
+  void Print(std::ostream &out) const override { out << "OneToThreeOp"; };
+
+  std::string Name() const override { return "OneToThreeOp"; };
 };
 }  // namespace test
 }  // namespace dataset
 }  // namespace mindspore
 
-
 class MindDataTestMapOp : public UT::DatasetOpTesting {
  public:
-    void SetUp() override {
-      DatasetOpTesting::SetUp();
-      dataset_path_ = datasets_root_path_ + "" + "/testDataset2/testDataset2.data";
-      schema_path_ = datasets_root_path_ + "" + "/testDataset2/datasetSchema.json";
+  void SetUp() override {
+    DatasetOpTesting::SetUp();
+    dataset_path_ = datasets_root_path_ + "" + "/testDataset2/testDataset2.data";
+    schema_path_ = datasets_root_path_ + "" + "/testDataset2/datasetSchema.json";
 
-      GlobalInit();
+    GlobalInit();
 
-      // Start with an empty execution tree
-      my_tree_ = std::make_shared<ExecutionTree>();
-    }
+    // Start with an empty execution tree
+    my_tree_ = std::make_shared<ExecutionTree>();
+  }
 
-    std::shared_ptr<TFReaderOp> CreateTFReaderOp() {
-      std::shared_ptr<TFReaderOp> my_tfreader_op;
-      TFReaderOp::Builder builder;
-      builder.SetDatasetFilesList({dataset_path_})
-          .SetColumnsToLoad({"image", "label", "A", "B"})
-          .SetRowsPerBuffer(2)
-          .SetWorkerConnectorSize(2)
-          .SetNumWorkers(2);
-
-      std::unique_ptr<DataSchema> schema = std::make_unique<DataSchema>();
-      schema->LoadSchemaFile(schema_path_, {});
-      builder.SetDataSchema(std::move(schema));
-
-      Status rc = builder.Build(&my_tfreader_op);
-      EXPECT_TRUE(rc.IsOk());
-      return my_tfreader_op;
-    }
+  std::shared_ptr<TFReaderOp> CreateTFReaderOp() {
+    std::shared_ptr<TFReaderOp> my_tfreader_op;
+    TFReaderOp::Builder builder;
+    builder.SetDatasetFilesList({dataset_path_})
+      .SetColumnsToLoad({"image", "label", "A", "B"})
+      .SetRowsPerBuffer(2)
+      .SetWorkerConnectorSize(2)
+      .SetNumWorkers(2);
+
+    std::unique_ptr<DataSchema> schema = std::make_unique<DataSchema>();
+    schema->LoadSchemaFile(schema_path_, {});
+    builder.SetDataSchema(std::move(schema));
+
+    Status rc = builder.Build(&my_tfreader_op);
+    EXPECT_TRUE(rc.IsOk());
+    return my_tfreader_op;
+  }
+
+  std::shared_ptr<ExecutionTree> my_tree_;
 
-    std::shared_ptr<ExecutionTree> my_tree_;
  private:
-    std::string dataset_path_;
-    std::string schema_path_;
+  std::string dataset_path_;
+  std::string schema_path_;
 };
 
 std::shared_ptr<ImageFolderOp> ImageFolder(int64_t num_works, int64_t rows, int64_t conns, std::string path,
@@ -148,10 +155,7 @@ TEST_F(MindDataTestMapOp, TestAsMap) {
   my_func_list.push_back(my_no_op);
   std::shared_ptr<MapOp> my_map_op;
   MapOp::Builder builder;
-  builder.SetInColNames({"image"})
-      .SetOutColNames({"X"})
-      .SetTensorFuncs(std::move(my_func_list))
-      .SetNumWorkers(1);
+  builder.SetInColNames({"image"}).SetOutColNames({"X"}).SetTensorFuncs(std::move(my_func_list)).SetNumWorkers(1);
   rc = builder.Build(&my_map_op);
   rc = my_tree_->AssociateNode(my_map_op);
   EXPECT_TRUE(rc.IsOk());
@@ -200,9 +204,9 @@ TEST_F(MindDataTestMapOp, Test3to1) {
   std::shared_ptr<MapOp> my_map_op;
   MapOp::Builder builder;
   builder.SetInColNames({"image", "A", "B"})
-      .SetOutColNames({"X"})
-      .SetTensorFuncs(std::move(my_func_list))
-      .SetNumWorkers(1);
+    .SetOutColNames({"X"})
+    .SetTensorFuncs(std::move(my_func_list))
+    .SetNumWorkers(1);
   rc = builder.Build(&my_map_op);
   EXPECT_TRUE(rc.IsOk());
   rc = my_tree_->AssociateNode(my_map_op);
@@ -252,10 +256,9 @@ TEST_F(MindDataTestMapOp, Test1to3) {
   std::shared_ptr<MapOp> my_map_op;
   MapOp::Builder builder;
   builder.SetInColNames({"image"})
-      .SetOutColNames({"X", "Y", "Z"})
-      .SetTensorFuncs(std::move(my_func_list))
-      .SetNumWorkers(1);
-
+    .SetOutColNames({"X", "Y", "Z"})
+    .SetTensorFuncs(std::move(my_func_list))
+    .SetNumWorkers(1);
 
   // ProjectOp
   std::vector<std::string> columns_to_project = {"X", "Y", "Z", "label", "A", "B"};
@@ -296,19 +299,18 @@ TEST_F(MindDataTestMapOp, Test1to3) {
 
   // Getting the next row as vector (by position).
   TensorRow tensor_list;
-  rc =di.FetchNextTensorRow(&tensor_list);
+  rc = di.FetchNextTensorRow(&tensor_list);
   EXPECT_TRUE(rc.IsOk());
 
   // Based on the schema file, create the golden result to compare with.
   std::vector<DataType::Type> golden_types({DataType::Type::DE_UINT8, DataType::Type::DE_UINT8,
                                             DataType::Type::DE_UINT8, DataType::Type::DE_INT64,
-                                            DataType::Type::DE_FLOAT32, DataType::Type::DE_INT64}
-  );
+                                            DataType::Type::DE_FLOAT32, DataType::Type::DE_INT64});
 
   std::vector<uint64_t> golden_ranks({3, 3, 3, 1, 4, 1});
 
   std::vector<TensorShape> golden_shapes({TensorShape({3, 4, 2}), TensorShape({3, 4, 2}), TensorShape({3, 4, 2}),
-        TensorShape({7}), TensorShape({1, 13, 14, 12}), TensorShape({9})} );
+                                          TensorShape({7}), TensorShape({1, 13, 14, 12}), TensorShape({9})});
 
   while (!tensor_list.empty()) {
     for (uint32_t i = 0; i < tensor_list.size(); i++) {
@@ -343,9 +345,9 @@ TEST_F(MindDataTestMapOp, TestMultiTensorOp) {
   std::shared_ptr<MapOp> my_map_op;
   MapOp::Builder builder;
   builder.SetInColNames({"image", "A", "B"})
-      .SetOutColNames({"X", "Y", "Z"})
-      .SetTensorFuncs(std::move(my_func_list))
-      .SetNumWorkers(1);
+    .SetOutColNames({"X", "Y", "Z"})
+    .SetTensorFuncs(std::move(my_func_list))
+    .SetNumWorkers(1);
   rc = builder.Build(&my_map_op);
   EXPECT_TRUE(rc.IsOk());
   rc = my_tree_->AssociateNode(my_map_op);
@@ -405,10 +407,7 @@ TEST_F(MindDataTestMapOp, TestTFReaderRepeatMap) {
 
   std::shared_ptr<MapOp> my_map_op;
   MapOp::Builder builder;
-  builder.SetInColNames({"label"})
-    .SetOutColNames({})
-    .SetTensorFuncs(std::move(my_func_list))
-    .SetNumWorkers(5);
+  builder.SetInColNames({"label"}).SetOutColNames({}).SetTensorFuncs(std::move(my_func_list)).SetNumWorkers(5);
   rc = builder.Build(&my_map_op);
   EXPECT_TRUE(rc.IsOk());
   rc = my_tree_->AssociateNode(my_map_op);
@@ -440,7 +439,6 @@ TEST_F(MindDataTestMapOp, TestTFReaderRepeatMap) {
     MS_LOG(INFO) << "row_count: " << row_count << ".";
     rc = di.FetchNextTensorRow(&tensor_list);
     EXPECT_TRUE(rc.IsOk());
-
   }
   ASSERT_EQ(row_count, 10 * num_repeats);
 }
@@ -467,10 +465,7 @@ TEST_F(MindDataTestMapOp, TestTFReaderMapRepeat) {
 
   std::shared_ptr<MapOp> my_map_op;
   MapOp::Builder builder;
-  builder.SetInColNames({"label"})
-    .SetOutColNames({})
-    .SetTensorFuncs(std::move(my_func_list))
-    .SetNumWorkers(50);
+  builder.SetInColNames({"label"}).SetOutColNames({}).SetTensorFuncs(std::move(my_func_list)).SetNumWorkers(50);
   rc = builder.Build(&my_map_op);
   EXPECT_TRUE(rc.IsOk());
   rc = my_tree_->AssociateNode(my_map_op);
@@ -536,25 +531,18 @@ TEST_F(MindDataTestMapOp, TFReader_Decode_Repeat_Resize) {
 
   std::shared_ptr<MapOp> my_map_decode_op;
   MapOp::Builder builder;
-  builder.SetInColNames({"image"})
-    .SetOutColNames({})
-    .SetTensorFuncs(std::move(my_func_list))
-    .SetNumWorkers(4);
+  builder.SetInColNames({"image"}).SetOutColNames({}).SetTensorFuncs(std::move(my_func_list)).SetNumWorkers(4);
   rc = builder.Build(&my_map_decode_op);
   EXPECT_TRUE(rc.IsOk());
   rc = my_tree_->AssociateNode(my_map_decode_op);
   EXPECT_TRUE(rc.IsOk());
 
-
   auto resize_op = std::make_shared<ResizeOp>(300, 300);
   std::vector<std::shared_ptr<TensorOp>> my_func_list2;
   my_func_list2.push_back(resize_op);
   std::shared_ptr<MapOp> my_map_resize_op;
   MapOp::Builder builder2;
-  builder2.SetInColNames({"image"})
-    .SetOutColNames({})
-    .SetTensorFuncs(std::move(my_func_list2))
-    .SetNumWorkers(5);
+  builder2.SetInColNames({"image"}).SetOutColNames({}).SetTensorFuncs(std::move(my_func_list2)).SetNumWorkers(5);
   rc = builder2.Build(&my_map_resize_op);
   EXPECT_TRUE(rc.IsOk());
   rc = my_tree_->AssociateNode(my_map_resize_op);
@@ -610,10 +598,7 @@ TEST_F(MindDataTestMapOp, ImageFolder_Decode_Repeat_Resize) {
 
   std::shared_ptr<MapOp> map_decode_map;
   MapOp::Builder map_decode_builder;
-  map_decode_builder.SetInColNames({"image"})
-    .SetOutColNames({})
-    .SetTensorFuncs(func_list)
-    .SetNumWorkers(4);
+  map_decode_builder.SetInColNames({"image"}).SetOutColNames({}).SetTensorFuncs(func_list).SetNumWorkers(4);
   rc = map_decode_builder.Build(&map_decode_map);
   EXPECT_TRUE(rc.IsOk());
 
@@ -622,10 +607,7 @@ TEST_F(MindDataTestMapOp, ImageFolder_Decode_Repeat_Resize) {
   func_list2.push_back(resize_op);
   std::shared_ptr<MapOp> map_resize_op;
   MapOp::Builder map_resize_builder;
-  map_resize_builder.SetInColNames({"image"})
-    .SetOutColNames({})
-    .SetTensorFuncs(func_list2)
-    .SetNumWorkers(5);
+  map_resize_builder.SetInColNames({"image"}).SetOutColNames({}).SetTensorFuncs(func_list2).SetNumWorkers(5);
   rc = map_resize_builder.Build(&map_resize_op);
   EXPECT_TRUE(rc.IsOk());
 
@@ -704,7 +686,6 @@ TEST_F(MindDataTestMapOp, ImageFolder_Decode_Repeat_Resize) {
   EXPECT_EQ(result, result2);
 }
 
-
 TEST_F(MindDataTestMapOp, ImageFolder_Decode_Repeat_Resize_NoInputColumns) {
   Status rc;
   MS_LOG(INFO) << "Doing ImageFolder_Decode_Repeat_Resize_NoInputColumns.";
@@ -722,10 +703,7 @@ TEST_F(MindDataTestMapOp, ImageFolder_Decode_Repeat_Resize_NoInputColumns) {
 
   std::shared_ptr<MapOp> map_decode_map;
   MapOp::Builder map_decode_builder;
-  map_decode_builder.SetInColNames({})
-    .SetOutColNames({})
-    .SetTensorFuncs(func_list)
-    .SetNumWorkers(4);
+  map_decode_builder.SetInColNames({}).SetOutColNames({}).SetTensorFuncs(func_list).SetNumWorkers(4);
   rc = map_decode_builder.Build(&map_decode_map);
   EXPECT_TRUE(rc.IsOk());
 
@@ -761,3 +739,5 @@ TEST_F(MindDataTestMapOp, ImageFolder_Decode_Repeat_Resize_NoInputColumns) {
   }
   EXPECT_TRUE(i == 88);
 }
+
+

tests/ut/cpp/dataset/tensor_op_fusion_pass_test.cc

@@ -0,0 +1,105 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <memory>
+#include <string>
+#include "dataset/core/client.h"
+#include "common/common.h"
+#include "gtest/gtest.h"
+#include "dataset/kernels/image/random_crop_and_resize_op.h"
+#include "dataset/kernels/image/decode_op.h"
+#include "dataset/engine/datasetops/source/image_folder_op.h"
+#include "dataset/engine/execution_tree.h"
+
+
+using namespace mindspore::dataset;
+using mindspore::LogStream;
+using mindspore::MsLogLevel::INFO;
+
+class MindDataTestTensorOpFusionPass : public UT::DatasetOpTesting {
+ public:
+  MindDataTestTensorOpFusionPass() = default;
+  void SetUp() override { GlobalInit(); }
+};
+
+TEST_F(MindDataTestTensorOpFusionPass, RandomCropDecodeResize_fusion_disabled) {
+  MS_LOG(INFO) << "Doing RandomCropDecodeResize_fusion";
+  std::shared_ptr<ImageFolderOp> ImageFolder(int64_t num_works, int64_t rows, int64_t conns, std::string path,
+                                             bool shuf = false, std::shared_ptr<Sampler> sampler = nullptr,
+                                             std::map<std::string, int32_t> map = {}, bool decode = false);
+  std::shared_ptr<ExecutionTree> Build(std::vector<std::shared_ptr<DatasetOp>> ops);
+  auto rcar_op = std::make_shared<RandomCropAndResizeOp>();
+  auto decode_op = std::make_shared<DecodeOp>();
+  Status rc;
+  std::vector<std::shared_ptr<TensorOp>> func_list;
+  func_list.push_back(decode_op);
+  func_list.push_back(rcar_op);
+  std::shared_ptr<MapOp> map_op;
+  MapOp::Builder map_decode_builder;
+  map_decode_builder.SetInColNames({}).SetOutColNames({}).SetTensorFuncs(func_list).SetNumWorkers(4);
+  rc = map_decode_builder.Build(&map_op);
+  EXPECT_TRUE(rc.IsOk());
+  auto tree = std::make_shared<ExecutionTree>();
+  tree = Build({ImageFolder(16, 2, 32, "./", false), map_op});
+  rc = tree->SetOptimize(false);
+  EXPECT_TRUE(rc);
+  rc = tree->Prepare();
+  EXPECT_TRUE(rc.IsOk());
+  rc = tree->SetOptimize(false);
+  EXPECT_TRUE(rc.IsError());
+  auto it = tree->begin();
+  ++it;
+  auto *m_op = &(*it);
+  auto tfuncs = static_cast<MapOp *>(m_op)->TFuncs();
+  auto func_it = tfuncs.begin();
+  EXPECT_EQ((*func_it)->Name(), kDecodeOp);
+  ++func_it;
+  EXPECT_EQ((*func_it)->Name(), kRandomCropAndResizeOp);
+}
+
+TEST_F(MindDataTestTensorOpFusionPass, RandomCropDecodeResize_fusion_enabled) {
+  MS_LOG(INFO) << "Doing RandomCropDecodeResize_fusion";
+  std::shared_ptr<ImageFolderOp> ImageFolder(int64_t num_works, int64_t rows, int64_t conns, std::string path,
+                                             bool shuf = false, std::shared_ptr<Sampler> sampler = nullptr,
+                                             std::map<std::string, int32_t> map = {}, bool decode = false);
+  std::shared_ptr<ExecutionTree> Build(std::vector<std::shared_ptr<DatasetOp>> ops);
+  auto rcar_op = std::make_shared<RandomCropAndResizeOp>();
+  auto decode_op = std::make_shared<DecodeOp>();
+  Status rc;
+  std::vector<std::shared_ptr<TensorOp>> func_list;
+  func_list.push_back(decode_op);
+  func_list.push_back(rcar_op);
+  std::shared_ptr<MapOp> map_op;
+  MapOp::Builder map_decode_builder;
+  map_decode_builder.SetInColNames({}).SetOutColNames({}).SetTensorFuncs(func_list).SetNumWorkers(4);
+  rc = map_decode_builder.Build(&map_op);
+  EXPECT_TRUE(rc.IsOk());
+  auto tree = std::make_shared<ExecutionTree>();
+  tree = Build({ImageFolder(16, 2, 32, "./", false), map_op});
+  rc = tree->SetOptimize(true);
+  EXPECT_TRUE(rc);
+  rc = tree->Prepare();
+  EXPECT_TRUE(rc.IsOk());
+  rc = tree->SetOptimize(false);
+  EXPECT_TRUE(rc.IsError());
+  auto it = tree->begin();
+  ++it;
+  auto *m_op = &(*it);
+  auto tfuncs = static_cast<MapOp *>(m_op)->TFuncs();
+  auto func_it = tfuncs.begin();
+  EXPECT_EQ((*func_it)->Name(), kRandomCropDecodeResizeOp);
+  EXPECT_EQ(++func_it, tfuncs.end());
+}