From a03cd3127543d4a7c2b2ef81d714e105141ebd9e Mon Sep 17 00:00:00 2001
From: Jiacheng Huang <huangjiacheng0709@outlook.com>
Date: Wed, 13 May 2026 14:41:41 +0800
Subject: [PATCH] feat: add `upsample_nearest1d` base

---
 src/base/upsample_nearest1d.h | 45 +++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/base/upsample_nearest1d.h

diff --git a/src/base/upsample_nearest1d.h b/src/base/upsample_nearest1d.h
new file mode 100644
index 00000000..fec678be
--- /dev/null
+++ b/src/base/upsample_nearest1d.h
@@ -0,0 +1,45 @@
+#ifndef INFINI_OPS_BASE_UPSAMPLE_NEAREST1D_H_
+#define INFINI_OPS_BASE_UPSAMPLE_NEAREST1D_H_
+
+#include "operator.h"
+
+namespace infini::ops {
+
+class UpsampleNearest1d : public Operator<UpsampleNearest1d> {
+ public:
+  UpsampleNearest1d(const Tensor input, const std::vector<int64_t> output_size,
+                    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()},
+        output_size_{output_size},
+        device_index_{out.device().index()} {}
+
+  virtual void operator()(const Tensor input,
+                          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 out_shape_;
+
+  Tensor::Strides out_strides_;
+
+  DataType out_type_;
+
+  std::vector<int64_t> output_size_{};
+
+  int device_index_{0};
+};
+
+}  // namespace infini::ops
+
+#endif
\ No newline at end of file