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/*
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/AST.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,
[this](YulString _var) { return variableValue(_var); }
))
_expression = match->action().toExpression(debugDataOf(_expression));
}