chore: import upstream snapshot with attribution

2026-07-13 12:40:42 +08:00
commit e25996e7db
15472 changed files with 3536181 additions and 0 deletions
@@ -0,0 +1,70 @@
+// Copyright (c) 2022 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.
+
+#include "paddle/phi/kernels/index_select_kernel.h"
+
+#include "paddle/phi/core/kernel_registry.h"
+#include "paddle/phi/core/utils/data_type.h"
+#include "paddle/phi/kernels/cpu/index_select_impl.h"
+
+namespace phi {
+
+template <typename T, typename Context>
+void IndexSelectKernel(const Context& dev_ctx,
+                       const DenseTensor& x,
+                       const DenseTensor& index,
+                       int dim,
+                       DenseTensor* output) {
+  if (output && output->numel() == 0) {
+    dev_ctx.template Alloc<T>(output);
+    return;
+  }
+  auto inputs = x;
+  if (dim < 0) {
+    dim += inputs.dims().size();
+  }
+  const auto& index_type = index.dtype();
+
+  bool index_type_match =
+      index_type == DataType::INT32 || index_type == DataType::INT64;
+  PADDLE_ENFORCE_EQ(index_type_match,
+                    true,
+                    common::errors::InvalidArgument(
+                        "Input(Index) holds the wrong type, it holds %s, but "
+                        "desires to be %s or %s",
+                        index_type,
+                        DataType::INT32,
+                        DataType::INT64));
+
+  if (index_type == DataType::INT32) {
+    IndexSelectInner<Context, T, int>(dev_ctx, &inputs, index, output, dim);
+  } else if (index_type == DataType::INT64) {
+    IndexSelectInner<Context, T, int64_t>(dev_ctx, &inputs, index, output, dim);
+  }
+}
+
+}  // namespace phi
+
+PD_REGISTER_KERNEL(index_select,
+                   CPU,
+                   ALL_LAYOUT,
+                   phi::IndexSelectKernel,
+                   float,
+                   double,
+                   phi::bfloat16,
+                   phi::complex64,
+                   phi::complex128,
+                   int,
+                   int64_t,
+                   bool) {}