solidity/libyul/optimiser/ExpressionSimplifier.cpp
2020-09-14 17:35:04 +02:00

44 lines
1.4 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
/**
* Optimiser component that uses the simplification rules to simplify expressions.
*/
#include <libyul/optimiser/ExpressionSimplifier.h>
#include <libyul/optimiser/SimplificationRules.h>
#include <libyul/optimiser/OptimiserStep.h>
#include <libyul/AsmData.h>
using namespace std;
using namespace solidity;
using namespace solidity::yul;
void ExpressionSimplifier::run(OptimiserStepContext& _context, Block& _ast)
{
ExpressionSimplifier{_context.dialect}(_ast);
}
void ExpressionSimplifier::visit(Expression& _expression)
{
ASTModifier::visit(_expression);
while (auto const* match = SimplificationRules::findFirstMatch(_expression, m_dialect, m_value))
_expression = match->action().toExpression(locationOf(_expression));
}