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infershaped autogen (PR #1), test=develop (PaddlePaddle#39405)
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| // 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. | ||
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| #pragma once | ||
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| #include <type_traits> | ||
| #include "paddle/infrt/tensor/dense_host_tensor.h" | ||
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| namespace infrt { | ||
| namespace naive { | ||
| namespace infershaped { | ||
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| using KeyType = const tensor::DenseHostTensor&; | ||
| using CountType = uint8_t; | ||
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| constexpr CountType value(std::true_type) { return 1; } | ||
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| constexpr CountType value(std::false_type) { return 0; } | ||
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| template <typename T> | ||
| constexpr CountType value() { | ||
| return value(std::integral_constant<bool, std::is_same<T, KeyType>::value>{}); | ||
| } | ||
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| template <typename FirstArg> | ||
| constexpr CountType count(CountType num) { | ||
| return num; | ||
| } | ||
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| template <typename FirstArg> | ||
| constexpr CountType count() { | ||
| return 0; | ||
| } | ||
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| template <> | ||
| constexpr CountType count<KeyType>(CountType num) { | ||
| return num + 1; | ||
| } | ||
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| template <> | ||
| constexpr CountType count<KeyType>() { | ||
| return 1; | ||
| } | ||
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| template <typename FirstArg, typename SecondArg, typename... RestOfArgs> | ||
| constexpr CountType count(CountType num) { | ||
| return count<SecondArg, RestOfArgs...>(num + value<FirstArg>()); | ||
| } | ||
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| template <typename FirstArg, typename SecondArg, typename... RestOfArgs> | ||
| constexpr CountType count() { | ||
| return count<SecondArg, RestOfArgs...>(value<FirstArg>()); | ||
| } | ||
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| } // namespace infershaped | ||
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| template <typename F> | ||
| struct InferShapeHelper; | ||
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| template <typename Return, typename... Args> | ||
| struct InferShapeHelper<Return (*)(Args...)> { | ||
| static constexpr int count = infershaped::count<Args...>(); | ||
| }; | ||
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| } // namespace naive | ||
| } // namespace infrt |