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86 lines
2.3 KiB
86 lines
2.3 KiB
/**
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* Copyright 2020 Huawei Technologies Co., Ltd
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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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*/
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#ifndef GE_GRAPH_PASSES_ATTACH_STREAM_LABEL_PASS_H_
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#define GE_GRAPH_PASSES_ATTACH_STREAM_LABEL_PASS_H_
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#include <stack>
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#include "inc/graph_pass.h"
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namespace ge {
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class AttachStreamLabelPass : public GraphPass {
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public:
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Status Run(ComputeGraphPtr graph);
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///
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/// @brief Clear Status, used for subgraph pass
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/// @return
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///
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Status ClearStatus() override;
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private:
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///
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/// @brief Find StreamSwitch / StreamMerge / Enter node
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/// @param [in] graph
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/// @return void
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///
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void FindNodes(const ComputeGraphPtr &graph);
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///
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/// @brief update cond branch
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/// @param [in] node
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/// @return Status
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///
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Status UpdateCondBranch(const NodePtr &node);
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///
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/// @brief attach flag
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/// @param [in] node
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/// @param [out] stream_label
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/// @return Status
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///
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static Status AttachFlag(const NodePtr &node, std::string &stream_label);
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///
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/// @brief Update stream_label for loop_branch
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/// @param [in] enter_nodes
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/// @param [in] stream_label
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/// @return Status
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///
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static Status UpdateLoopBranch(const std::stack<NodePtr> &enter_nodes, const std::string &stream_label);
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///
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/// @brief Update stream_label start with enter nodes
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/// @return Status
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///
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Status UpdateEnterNode();
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///
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/// @brief Set stream_label for enter_nodes
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/// @param [in] enter_nodes
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/// @param [in] active_node
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/// @return Status
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///
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static Status SetEnterLabel(const std::vector<NodePtr> &enter_nodes, const NodePtr &active_node);
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std::vector<NodePtr> stream_switch_nodes_;
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std::vector<NodePtr> need_label_nodes_;
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std::vector<NodePtr> enter_nodes_;
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std::unordered_map<NodePtr, NodePtr> branch_head_nodes_;
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};
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} // namespace ge
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#endif // GE_GRAPH_PASSES_ATTACH_STREAM_LABEL_PASS_H_
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