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/*
* Copyright (c) 2021 Samsung Electronics Co., Ltd. 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.
*/
#include "luci/Service/ChangeOutputs.h"
#include <luci/IR/CircleNode.h>
#include <loco/IR/Graph.h>
#include <oops/UserExn.h>
#include <cassert>
#include <iostream>
#include <map>
namespace
{
luci::CircleNode *find_by_name(loco::Graph *g, const std::string &name)
{
for (auto node : loco::all_nodes(g))
{
auto cnode = loco::must_cast<luci::CircleNode *>(node);
if (cnode->name() == name)
return cnode;
}
return nullptr;
}
} // namespace
namespace luci
{
void change_outputs(loco::Graph *graph, const std::vector<std::string> &new_outputs)
{
if (new_outputs.size() != graph->outputs()->size())
{
throw oops::UserExn("Change outputs failed: number of outputs should be ",
graph->outputs()->size());
}
std::map<std::string, luci::CircleNode *> named_nodes;
for (auto &node_name : new_outputs)
{
auto node = find_by_name(graph, node_name);
if (node == nullptr)
{
throw oops::UserExn("Change outputs failed: node not found: ", node_name);
}
named_nodes[node_name] = node;
}
// just to be sure
assert(graph->outputs()->size() == named_nodes.size());
for (uint32_t out = 0; out < graph->outputs()->size(); ++out)
{
auto output = luci::output_node(graph, out); // output is CircleOutput
assert(output != nullptr);
auto &node_name = new_outputs.at(out);
auto node = named_nodes[node_name];
assert(node != nullptr);
output->from(node);
// update GraphOutput shape, dtype to node
auto graph_out = graph->outputs()->at(out);
auto output_shape = std::make_unique<loco::TensorShape>();
output_shape->rank(node->rank());
for (uint32_t r = 0; r < node->rank(); ++r)
{
if (node->dim(r).known())
output_shape->dim(r).set(node->dim(r).value());
else
output_shape->dim(r).unset();
}
graph_out->shape(std::move(output_shape));
graph_out->dtype(node->dtype());
}
}
} // namespace luci
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