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51 lines
1.7 KiB
51 lines
1.7 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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#include "graph/passes/useless_control_out_remove_pass.h"
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#include "graph/debug/ge_attr_define.h"
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#include "graph/utils/graph_utils.h"
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#include "framework/common/debug/ge_log.h"
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#include "framework/common/debug/log.h"
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namespace ge {
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Status UselessControlOutRemovePass::Run(NodePtr &node) {
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GE_CHECK_NOTNULL(node);
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if ((node->GetType() != CONSTANT) && (node->GetType() != CONSTANTOP)) {
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return SUCCESS;
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}
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GELOGD("UselessControlOutRemovePass running, node: %s.", node->GetName().c_str());
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// const has no control input
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if (node->GetInControlNodes().empty()) {
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if (node->GetOutDataNodes().empty()) {
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// It is an isolated const, just remove it.
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GELOGI("Delete isolated const: %s.", node->GetName().c_str());
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GE_CHK_STATUS_RET(IsolateAndDeleteNode(node, {}))
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AddNodeDeleted(node);
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} else {
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auto out_ctrl_anchor = node->GetOutControlAnchor();
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if (out_ctrl_anchor != nullptr && !out_ctrl_anchor->GetPeerAnchors().empty()) {
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GELOGI("Node: %s unlink all out control edge.", node->GetName().c_str());
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out_ctrl_anchor->UnlinkAll();
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}
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}
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}
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return SUCCESS;
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}
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} // namespace ge
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