1/*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#ifndef ECMASCRIPT_COMPILER_USELESS_GATE_ELIMINATION_H
17#define ECMASCRIPT_COMPILER_USELESS_GATE_ELIMINATION_H
18
19#include "ecmascript/compiler/circuit.h"
20#include "ecmascript/compiler/gate_accessor.h"
21
22namespace panda::ecmascript::kungfu {
23
24class UselessGateElimination {
25public:
26    UselessGateElimination(Circuit* circuit, bool enableLog, std::string name)
27        : enableLog_(enableLog), methodName_(name), circuit_(circuit),
28          acc_(circuit) {}
29    void Run();
30private:
31    void PushGate(GateRef gate);
32    void InitList();
33    void MarkGate();
34    void ReplaceDead(GateRef gate);
35    void EliminateUnmarkedGate();
36    std::string GetMethodName();
37    bool enableLog_;
38    std::string methodName_;
39    Circuit* circuit_;
40    GateAccessor acc_;
41    std::vector<GateRef> workList_;
42    std::vector<GateRef> gateList_;
43};
44
45}
46#endif