feat: add max base (#327)

Author: voltjia

src/base/max.h

@@ -0,0 +1,95 @@
+#ifndef INFINI_OPS_BASE_MAX_H_
+#define INFINI_OPS_BASE_MAX_H_
+
+#include "operator.h"
+
+namespace infini::ops {
+
+class Max : public Operator<Max> {
+ public:
+  Max(const Tensor input, const Tensor other, Tensor out)
+      : input_shape_{input.shape()},
+        input_strides_{input.strides()},
+        input_type_{input.dtype()},
+        other_shape_{other.shape()},
+        other_strides_{other.strides()},
+        other_type_{other.dtype()},
+        out_shape_{out.shape()},
+        out_strides_{out.strides()},
+        out_type_{out.dtype()},
+        device_index_{out.device().index()} {}
+
+  Max(const Tensor input, const int64_t dim, const bool keepdim, Tensor max,
+      Tensor max_values)
+      : input_shape_{input.shape()},
+        input_strides_{input.strides()},
+        input_type_{input.dtype()},
+        max_shape_{max.shape()},
+        max_strides_{max.strides()},
+        max_type_{max.dtype()},
+        max_values_shape_{max_values.shape()},
+        max_values_strides_{max_values.strides()},
+        max_values_type_{max_values.dtype()},
+        dim_{dim},
+        keepdim_{keepdim},
+        device_index_{max.device().index()} {}
+
+  Max(const Tensor input, Tensor out)
+      : input_shape_{input.shape()},
+        input_strides_{input.strides()},
+        input_type_{input.dtype()},
+        out_shape_{out.shape()},
+        out_strides_{out.strides()},
+        out_type_{out.dtype()},
+        device_index_{out.device().index()} {}
+
+  virtual void operator()(const Tensor input, const Tensor other,
+                          Tensor out) const = 0;
+
+  virtual void operator()(const Tensor input, const int64_t dim,
+                          const bool keepdim, Tensor max,
+                          Tensor max_values) const = 0;
+
+  virtual void operator()(const Tensor input, Tensor out) const = 0;
+
+ protected:
+  Tensor::Shape input_shape_;
+
+  Tensor::Strides input_strides_;
+
+  DataType input_type_;
+
+  Tensor::Shape other_shape_;
+
+  Tensor::Strides other_strides_;
+
+  DataType other_type_;
+
+  Tensor::Shape out_shape_;
+
+  Tensor::Strides out_strides_;
+
+  DataType out_type_;
+
+  Tensor::Shape max_shape_;
+
+  Tensor::Strides max_strides_;
+
+  DataType max_type_;
+
+  Tensor::Shape max_values_shape_;
+
+  Tensor::Strides max_values_strides_;
+
+  DataType max_values_type_;
+
+  int64_t dim_{};
+
+  bool keepdim_{};
+
+  int device_index_{0};
+};
+
+}  // namespace infini::ops
+
+#endif