wehub-resource-sync
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
// Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/phi/kernels/reshape_kernel.h"
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#include "paddle/phi/backends/all_context.h"
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#include "paddle/phi/core/kernel_registry.h"
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#include "paddle/phi/core/tensor_utils.h"
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#include "paddle/phi/infermeta/unary.h"
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#include "paddle/phi/kernels/funcs/common_shape.h"
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namespace phi {
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template <typename Context>
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void ReshapeKernel(const Context& dev_ctx,
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const DenseTensor& x,
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const IntArray& shape,
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DenseTensor* out) {
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MetaTensor meta_out(out);
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InferMetaFromVecValue(x, shape.GetData(), &meta_out);
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if (x.has_allocation() && x.Holder() == out->Holder()) {
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dev_ctx.Alloc(out, x.dtype());
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return;
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}
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dev_ctx.Alloc(out, x.dtype());
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if (out->numel() == 0) return;
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// TODO(chenweihang): the output dims are overwrite after copying,
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// here we need to use copy method that only copy data
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auto dims = out->dims();
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phi::Copy(dev_ctx, x, dev_ctx.GetPlace(), false, out);
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out->Resize(dims);
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out->ResetLoD(x.lod());
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}
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template <typename Context>
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void ReshapeWithXShapeKernel(const Context& dev_ctx,
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const DenseTensor& x,
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const IntArray& shape,
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DenseTensor* out,
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DenseTensor* xshape UNUSED) {
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ReshapeKernel(dev_ctx, x, shape, out);
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}
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} // namespace phi
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PD_REGISTER_KERNEL_FOR_ALL_BACKEND_DTYPE(reshape,
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ALL_LAYOUT,
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phi::ReshapeKernel) {}
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// FIXME(dev): Need to deprecate it while
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// cleaning old IR system.
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PD_REGISTER_KERNEL_FOR_ALL_BACKEND_DTYPE(reshape_with_xshape,
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ALL_LAYOUT,
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phi::ReshapeWithXShapeKernel) {
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kernel->OutputAt(1).SetBackend(phi::Backend::UNDEFINED);
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}
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