arkcompiler_ets_runtime/ecmascript/compiler/constant_folding.h
void_f d47c22bad9 Constant Folding
Issue: https://gitee.com/openharmony/arkcompiler_ets_runtime/issues/I81OZC
Signed-off-by: void_f <void_f@foxmail.com>

Change-Id: I764d0f5460780a8ed43531d6e8e0c33509bf8d83
2023-10-25 14:23:49 +08:00

80 lines
2.5 KiB
C++

/*
* Copyright (c) 2021 Huawei Device 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.
*/
#ifndef ECMASCRIPT_COMPILER_CONSTANT_FOLDING_H
#define ECMASCRIPT_COMPILER_CONSTANT_FOLDING_H
#include "ecmascript/compiler/circuit.h"
#include "ecmascript/compiler/circuit_builder.h"
#include "ecmascript/compiler/gate.h"
#include "ecmascript/compiler/share_gate_meta_data.h"
#include "ecmascript/compiler/combined_pass_visitor.h"
#include "ecmascript/compiler/number_gate_info.h"
namespace panda::ecmascript::kungfu {
class ConstantFolding : public PassVisitor {
public:
ConstantFolding(Circuit *circuit, RPOVisitor* visitor, CompilationConfig *cmpCfg, bool enableLog,
const std::string& name, Chunk* chunk)
: PassVisitor(circuit, chunk, visitor), circuit_(circuit), acc_(circuit), builder_(circuit, cmpCfg),
enableLog_(enableLog), methodName_(name) {}
~ConstantFolding() = default;
void Print() const;
GateRef VisitGate(GateRef gate);
private:
GateRef VisitADD(GateRef gate);
GateRef VisitMUL(GateRef gate);
GateRef VisitZEXT(GateRef gate);
GateRef VisitSUB(GateRef gate);
GateRef VisitSMOD(GateRef gate);
GateRef VisitUMOD(GateRef gate);
GateRef Int32Constant(int32_t val);
GateRef Int64Constant(size_t val);
RangeInfo GetRange(GateRef gate) const;
bool IsInt32Type(GateRef gate) const;
bool IsConstant(GateRef gate) const
{
return acc_.GetOpCode(gate) == OpCode::CONSTANT;
}
bool IsLogEnabled() const
{
return enableLog_;
}
std::string GetMethodName() const
{
return methodName_;
}
void AddFoldingCount()
{
++foldingCount_;
}
int32_t GetFoldingCount() const
{
return foldingCount_;
}
Circuit* circuit_;
GateAccessor acc_;
CircuitBuilder builder_;
bool enableLog_{false};
std::string methodName_;
int32_t foldingCount_{0};
};
} // namespace panda::ecmascript::kungfu
#endif //ECMASCRIPT_COMPILER_CONSTANT_FOLDING_H