forked from huawei/mindspore2022
114 lines
3.8 KiB
C++
114 lines
3.8 KiB
C++
/**
|
|
* Copyright 2019 Huawei Technologies Co., Ltd
|
|
*
|
|
* 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 "backend/optimizer/common/optimizer.h"
|
|
|
|
#include <functional>
|
|
#include <memory>
|
|
#include <string>
|
|
#include <vector>
|
|
#include <algorithm>
|
|
#include <utility>
|
|
#include <initializer_list>
|
|
|
|
#include "backend/optimizer/common/pass_manager.h"
|
|
#include "backend/session/anf_runtime_algorithm.h"
|
|
#include "ir/manager.h"
|
|
|
|
namespace mindspore {
|
|
namespace opt {
|
|
PatternProcessPass::PatternProcessPass(const std::string &name, bool multigraph)
|
|
: NodePass(name),
|
|
multigraph_(multigraph),
|
|
pattern_engine_(PatternEngine(std::make_shared<DefaultVisitor>(),
|
|
std::function<bool(const BaseRef &, const BaseRef &)>(AnfEqual),
|
|
std::function<bool(const BaseRef &, const BaseRef &)>(CNodeTypeEqual))),
|
|
primitive_vars_(std::make_shared<PrimitiveVarMap>()) {}
|
|
|
|
const BaseRef PatternProcessPass::DefinePattern() const {
|
|
VarPtr X = std::make_shared<Var>();
|
|
return BaseRef({X});
|
|
}
|
|
|
|
void PatternProcessPass::Build() {
|
|
VarPtr fg = std::make_shared<Var>("RootG");
|
|
BaseRef pattern = std::move(DefinePattern());
|
|
pattern_ = SexpToNode(pattern, fg, primitive_vars_.get(), multigraph_);
|
|
}
|
|
|
|
AnfNodePtr PatternProcessPass::Run(const FuncGraphPtr &func_graph, const AnfNodePtr &node) {
|
|
if (pattern_ == nullptr) {
|
|
Build();
|
|
}
|
|
|
|
auto empty_equiv = std::make_shared<Equiv>();
|
|
MS_EXCEPTION_IF_NULL(primitive_vars_);
|
|
EquivPtr equiv = pattern_engine_.Match(pattern_, node, *primitive_vars_, empty_equiv);
|
|
if (equiv != nullptr && !equiv->empty()) {
|
|
return Process(func_graph, node, equiv);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool MultipleOutputPatternProcessPass::MatchAnotherPattern(const AnfNodePtr &node, const EquivPtr &equiv) const {
|
|
MS_EXCEPTION_IF_NULL(node);
|
|
MS_EXCEPTION_IF_NULL(equiv);
|
|
VarPtr fg = std::make_shared<Var>("RootG");
|
|
auto empty_equiv = std::make_shared<Equiv>();
|
|
MS_EXCEPTION_IF_NULL(child_primitive_vars_);
|
|
EquivPtr another_equiv =
|
|
child_pattern_engine_.Match(SexpToNode(DefineAnotherPattern(), fg, child_primitive_vars_.get(), true), node,
|
|
*child_primitive_vars_, empty_equiv);
|
|
if (another_equiv != nullptr && !another_equiv->empty()) {
|
|
return IsShareNodes(equiv, another_equiv);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void GraphOptimizer::AddPassManager(const PassManagerPtr &pass_manager) {
|
|
if (pass_manager != nullptr) {
|
|
pass_managers_.push_back(pass_manager);
|
|
}
|
|
}
|
|
|
|
FuncGraphPtr GraphOptimizer::Optimize(const FuncGraphPtr &func_graph, bool run_only_once) {
|
|
MS_EXCEPTION_IF_NULL(func_graph);
|
|
run_only_once_ = (pass_managers_.size() == 1) ? true : run_only_once;
|
|
// Performance risk by creating new manager each time
|
|
auto manager = Manage(func_graph, true);
|
|
|
|
bool changed = true;
|
|
while (changed) {
|
|
changed = false;
|
|
for (size_t i = 0; i < pass_managers_.size(); ++i) {
|
|
const PassManagerPtr &pm = pass_managers_[i];
|
|
if (pm != nullptr && pm->Run(func_graph)) {
|
|
changed = true;
|
|
}
|
|
}
|
|
if (run_only_once_) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
std::vector<FuncGraphPtr> func_graphs;
|
|
func_graphs.push_back(func_graph);
|
|
manager->KeepRoots(func_graphs);
|
|
(void)TopoSort(func_graph->get_return());
|
|
return func_graph;
|
|
}
|
|
} // namespace opt
|
|
} // namespace mindspore
|