chore: import upstream snapshot with attribution

paddle/phi/kernels/impl/share_data_kernel_impl.h

@@ -0,0 +1,29 @@
+// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+#include "paddle/phi/core/kernel_registry.h"
+
+namespace phi {
+
+template <typename T, typename Context>
+void ShareDataKernel(const Context &dev_ctx,
+                     const DenseTensor &x,
+                     DenseTensor *out) {
+  const auto &origin_tensor = x;
+  auto *detach_tensor = out;
+  detach_tensor->ShareDataWith(origin_tensor);
+}
+
+}  // namespace phi