LCOV - code coverage report
Current view: top level - nntrainer/layers/loss - loss_layer.h (source / functions) Coverage Total Hit
Test: coverage_filtered.info Lines: 100.0 % 3 3
Test Date: 2025-12-14 20:38:17 Functions: 100.0 % 2 2

            Line data    Source code
       1              : // SPDX-License-Identifier: Apache-2.0
       2              : /**
       3              :  * Copyright (C) 2020 Parichay Kapoor <pk.kapoor@samsung.com>
       4              :  *
       5              :  * @file   loss_layer.h
       6              :  * @date   12 June 2020
       7              :  * @brief  This is Loss Layer Class of Neural Network
       8              :  * @see    https://github.com/nnstreamer/nntrainer
       9              :  * @author Parichay Kapoor <pk.kapoor@samsung.com>
      10              :  * @bug    No known bugs except for NYI items
      11              :  *
      12              :  */
      13              : 
      14              : #ifndef __LOSS_LAYER_H__
      15              : #define __LOSS_LAYER_H__
      16              : #ifdef __cplusplus
      17              : 
      18              : #include <layer_devel.h>
      19              : 
      20              : #include <tensor.h>
      21              : 
      22              : namespace nntrainer {
      23              : 
      24              : /**
      25              :  * @class   LossLayer
      26              :  * @brief   loss layer
      27              :  */
      28              : class LossLayer : public Layer {
      29              : public:
      30              :   /**
      31              :    * @brief     Destructor of Loss Layer
      32              :    */
      33          760 :   virtual ~LossLayer() = default;
      34              : 
      35              :   /**
      36              :    * @copydoc Layer::finalize(InitLayerContext &context)
      37              :    */
      38              :   virtual void finalize(InitLayerContext &context) override;
      39              : 
      40              :   /**
      41              :    * @copydoc Layer::setProperty(const std::vector<std::string> &values)
      42              :    */
      43              :   virtual void setProperty(const std::vector<std::string> &values) override;
      44              : 
      45              :   /**
      46              :    * @copydoc Layer::supportBackwarding()
      47              :    */
      48         1502 :   virtual bool supportBackwarding() const override { return true; }
      49              : 
      50              :   /**
      51              :    * @copydoc Layer::requireLabel()
      52              :    */
      53        15073 :   bool requireLabel() const override { return true; }
      54              : 
      55              : protected:
      56              :   /**
      57              :    * @brief     update loss
      58              :    * @param     context Run context to update loss in
      59              :    * @param     l Tensor data to calculate
      60              :    */
      61              :   void updateLoss(RunLayerContext &context, const Tensor &l);
      62              : 
      63              :   /**
      64              :    * @brief     update return derivative with loss scale
      65              :    * @param     context Run context to update
      66              :    * @param     return_dev Tensor data to calculate
      67              :    */
      68              :   void applyLossScale(RunLayerContext &context, Tensor &l);
      69              : 
      70              :   Tensor
      71              :     l; /**< loss tensor to store intermediate value to calculate loss value */
      72              : };
      73              : 
      74              : } // namespace nntrainer
      75              : 
      76              : #endif /* __cplusplus */
      77              : #endif /* __LOSS_LAYER_H__ */
        

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