feat: add NllLoss2dForwardOutput base

Author: voltjia

src/base/nll_loss2d_forward_output.h

@@ -0,0 +1,49 @@
+#ifndef INFINI_OPS_BASE_NLL_LOSS2D_FORWARD_OUTPUT_H_
+#define INFINI_OPS_BASE_NLL_LOSS2D_FORWARD_OUTPUT_H_
+
+#include "operator.h"
+
+namespace infini::ops {
+
+class NllLoss2dForwardOutput : public Operator<NllLoss2dForwardOutput> {
+ public:
+  NllLoss2dForwardOutput(const Tensor self, const Tensor target,
+                         const int64_t reduction, const int64_t ignore_index,
+                         Tensor output, Tensor total_weight)
+      : self_shape_{self.shape()},
+        self_strides_{self.strides()},
+        self_type_{self.dtype()},
+        target_shape_{target.shape()},
+        target_strides_{target.strides()},
+        target_type_{target.dtype()},
+        output_shape_{output.shape()},
+        output_strides_{output.strides()},
+        output_type_{output.dtype()},
+        total_weight_shape_{total_weight.shape()},
+        total_weight_strides_{total_weight.strides()},
+        total_weight_type_{total_weight.dtype()},
+        device_index_{output.device().index()} {}
+
+  virtual void operator()(const Tensor self, const Tensor target,
+                          const int64_t reduction, const int64_t ignore_index,
+                          Tensor output, Tensor total_weight) const = 0;
+
+ protected:
+  Tensor::Shape self_shape_;
+  Tensor::Strides self_strides_;
+  DataType self_type_;
+  Tensor::Shape target_shape_;
+  Tensor::Strides target_strides_;
+  DataType target_type_;
+  Tensor::Shape output_shape_;
+  Tensor::Strides output_strides_;
+  DataType output_type_;
+  Tensor::Shape total_weight_shape_;
+  Tensor::Strides total_weight_strides_;
+  DataType total_weight_type_;
+  int device_index_{0};
+};
+
+}  // namespace infini::ops
+
+#endif