solidity/libevmasm/PeepholeOptimiser.h
2023-08-24 15:29:26 -03:00

62 lines
1.5 KiB
C++

/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
/**
* @file PeepholeOptimiser.h
* Performs local optimising code changes to assembly.
*/
#pragma once
#include <vector>
#include <cstddef>
#include <iterator>
#include <liblangutil/EVMVersion.h>
namespace solidity::evmasm
{
class AssemblyItem;
using AssemblyItems = std::vector<AssemblyItem>;
class PeepholeOptimisationMethod
{
public:
virtual ~PeepholeOptimisationMethod() = default;
virtual size_t windowSize() const;
virtual bool apply(AssemblyItems::const_iterator _in, std::back_insert_iterator<AssemblyItems> _out);
};
class PeepholeOptimiser
{
public:
explicit PeepholeOptimiser(AssemblyItems& _items, langutil::EVMVersion const _evmVersion):
m_items(_items),
m_evmVersion(_evmVersion)
{
}
virtual ~PeepholeOptimiser() = default;
bool optimise();
private:
AssemblyItems& m_items;
AssemblyItems m_optimisedItems;
langutil::EVMVersion const m_evmVersion;
};
}