50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
// Copyright (c) 2024 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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#pragma once
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#include "paddle/phi/core/dense_tensor.h"
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#include "paddle/phi/core/enforce.h"
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namespace phi {
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namespace funcs {
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static inline std::vector<int32_t> GetOutputShape(const int axis,
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const DDim &in_dims) {
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if (in_dims.size() == 0) {
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return {1};
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}
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int64_t outer = 1, inner = 1;
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for (int i = 0; i < in_dims.size(); ++i) {
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if (i < axis) {
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if (in_dims[i] == -1 || outer == -1) {
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outer = -1;
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} else {
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outer *= in_dims[i];
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}
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} else {
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if (in_dims[i] == -1 || inner == -1) {
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inner = -1;
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} else {
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inner *= in_dims[i];
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}
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}
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}
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std::vector<int32_t> out_shape(2);
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out_shape[0] = static_cast<int32_t>(outer);
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out_shape[1] = static_cast<int32_t>(inner);
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return out_shape;
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}
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} // namespace funcs
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} // namespace phi
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