feat: add max_unpool2d base (#332)

Author: voltjia

src/base/max_unpool2d.h

@@ -0,0 +1,54 @@
+#ifndef INFINI_OPS_BASE_MAX_UNPOOL2D_H_
+#define INFINI_OPS_BASE_MAX_UNPOOL2D_H_
+
+#include "operator.h"
+
+namespace infini::ops {
+
+class MaxUnpool2d : public Operator<MaxUnpool2d> {
+ public:
+  MaxUnpool2d(const Tensor input, const Tensor indices,
+              const std::vector<int64_t> output_size, Tensor out)
+      : input_shape_{input.shape()},
+        input_strides_{input.strides()},
+        input_type_{input.dtype()},
+        indices_shape_{indices.shape()},
+        indices_strides_{indices.strides()},
+        indices_type_{indices.dtype()},
+        out_shape_{out.shape()},
+        out_strides_{out.strides()},
+        out_type_{out.dtype()},
+        output_size_{output_size},
+        device_index_{out.device().index()} {}
+
+  virtual void operator()(const Tensor input, const Tensor indices,
+                          const std::vector<int64_t> output_size,
+                          Tensor out) const = 0;
+
+ protected:
+  Tensor::Shape input_shape_;
+
+  Tensor::Strides input_strides_;
+
+  DataType input_type_;
+
+  Tensor::Shape indices_shape_;
+
+  Tensor::Strides indices_strides_;
+
+  DataType indices_type_;
+
+  Tensor::Shape out_shape_;
+
+  Tensor::Strides out_strides_;
+
+  DataType out_type_;
+
+  std::vector<int64_t> output_size_{};
+
+  int device_index_{0};
+};
+
+}  // namespace infini::ops
+
+#endif