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 +1,68 @@
+// Copyright (c) 2023 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/diagonal_grad_kernel.h"
+#include "paddle/common/flags.h"
+#include "paddle/phi/backends/all_context.h"
+#include "paddle/phi/core/kernel_registry.h"
+#include "paddle/phi/kernels/diagonal_kernel.h"
+#include "paddle/phi/kernels/funcs/strided_utils.h"
+
+COMMON_DECLARE_bool(use_stride_kernel);
+
+namespace phi {
+
+template <typename Context>
+void DiagonalGradStridedKernel(const Context& dev_ctx,
+                               const DenseTensor& x,
+                               const DenseTensor& out_grad,
+                               int offset,
+                               int axis1,
+                               int axis2,
+                               DenseTensor* in_grad) {
+  if (!FLAGS_use_stride_kernel) {
+    PADDLE_THROW(common::errors::Fatal(
+        "FLAGS_use_stride_kernel is closed. Strided kernel "
+        "be called, something wrong has happened!"));
+  }
+  dev_ctx.Alloc(in_grad, in_grad->dtype());
+  in_grad->set_strides(DenseTensorMeta::calc_strides(in_grad->dims()));
+  if (in_grad->numel() == 0) {
+    return;
+  }
+  PD_VISIT_ALL_TYPES(in_grad->dtype(), "DiagonalGradStridedKernel", ([&] {
+                       phi::StridedTensorFill<data_t>(*in_grad, 0, in_grad);
+                     }));
+  DenseTensor tmp;
+  tmp.set_layout(out_grad.layout());
+  tmp.set_lod(out_grad.lod());
+  tmp.set_type(out_grad.dtype());
+  tmp.Resize(out_grad.dims());
+
+  DiagonalStridedKernel<Context>(dev_ctx, *in_grad, offset, axis1, axis2, &tmp);
+  PD_VISIT_ALL_TYPES(out_grad.dtype(), "DiagonalGradStridedKernel", ([&] {
+                       phi::StridedTensorCopy<data_t>(
+                           out_grad,
+                           vectorize<int64_t>(tmp.dims()),
+                           vectorize<int64_t>(tmp.strides()),
+                           tmp.offset(),
+                           &tmp);
+                     }));
+}
+
+}  // namespace phi
+
+PD_REGISTER_KERNEL_FOR_ALL_BACKEND_DTYPE(diagonal_grad,
+                                         STRIDED,
+                                         phi::DiagonalGradStridedKernel) {}