chore: import upstream snapshot with attribution

paddle/phi/api/include/compat/ATen/ops/all.h

@@ -0,0 +1,63 @@
+// Copyright (c) 2026 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 <ATen/core/Tensor.h>
+#include <c10/util/OptionalArrayRef.h>
+
+#include "paddle/phi/api/include/api.h"
+
+namespace at {
+
+// all: Check if all elements are true (non-zero)
+// Version 1: all() - check all elements in the tensor
+inline at::Tensor all(const at::Tensor& self) {
+  return paddle::experimental::all(self._PD_GetInner(), {}, false);
+}
+
+// Version 2: all(dim, keepdim) - check along a specific dimension
+inline at::Tensor all(const at::Tensor& self,
+                      int64_t dim,
+                      bool keepdim = false) {
+  return paddle::experimental::all(self._PD_GetInner(), {dim}, keepdim);
+}
+
+// Version 3: all(dim, keepdim) - check along optional dimensions
+inline at::Tensor all(const at::Tensor& self,
+                      at::OptionalIntArrayRef dim,
+                      bool keepdim = false) {
+  std::vector<int64_t> axis_vec;
+  if (dim.has_value()) {
+    axis_vec.assign(dim.value().begin(), dim.value().end());
+  }
+  return paddle::experimental::all(self._PD_GetInner(), axis_vec, keepdim);
+}
+
+}  // namespace at
+
+namespace at {
+
+// Tensor member function implementations
+inline at::Tensor Tensor::all() const { return at::all(*this); }
+
+inline at::Tensor Tensor::all(int64_t dim, bool keepdim) const {
+  return at::all(*this, dim, keepdim);
+}
+
+inline at::Tensor Tensor::all(at::OptionalIntArrayRef dim, bool keepdim) const {
+  return at::all(*this, dim, keepdim);
+}
+
+}  // namespace at