feat: add gelu_backward base

Author: voltjia

src/base/gelu_backward.h

@@ -0,0 +1,54 @@
+#ifndef INFINI_OPS_BASE_GELU_BACKWARD_H_
+#define INFINI_OPS_BASE_GELU_BACKWARD_H_
+
+#include "operator.h"
+
+namespace infini::ops {
+
+class GeluBackward : public Operator<GeluBackward> {
+ public:
+  GeluBackward(const Tensor grad_output, const Tensor input,
+               const std::string approximate, Tensor grad_input)
+      : grad_output_shape_{grad_output.shape()},
+        grad_output_strides_{grad_output.strides()},
+        grad_output_type_{grad_output.dtype()},
+        input_shape_{input.shape()},
+        input_strides_{input.strides()},
+        input_type_{input.dtype()},
+        grad_input_shape_{grad_input.shape()},
+        grad_input_strides_{grad_input.strides()},
+        grad_input_type_{grad_input.dtype()},
+        approximate_{approximate},
+        device_index_{grad_input.device().index()} {}
+
+  virtual void operator()(const Tensor grad_output, const Tensor input,
+                          const std::string approximate,
+                          Tensor grad_input) const = 0;
+
+ protected:
+  Tensor::Shape grad_output_shape_;
+
+  Tensor::Strides grad_output_strides_;
+
+  DataType grad_output_type_;
+
+  Tensor::Shape input_shape_;
+
+  Tensor::Strides input_strides_;
+
+  DataType input_type_;
+
+  Tensor::Shape grad_input_shape_;
+
+  Tensor::Strides grad_input_strides_;
+
+  DataType grad_input_type_;
+
+  std::string approximate_{};
+
+  int device_index_{0};
+};
+
+}  // namespace infini::ops
+
+#endif