solidity/libyul/optimiser/StackCompressor.h

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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/>.
*/
/**
* Optimisation stage that aggressively rematerializes certain variables ina a function to free
* space on the stack until it is compilable.
*/
#pragma once
#include <memory>
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namespace solidity::yul
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{
struct Dialect;
struct Object;
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struct FunctionDefinition;
/**
* Optimisation stage that aggressively rematerializes certain variables in a function to free
* space on the stack until it is compilable.
*
* Only runs on the code of the object itself, does not descend into sub-objects.
*
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* Prerequisite: Disambiguator, Function Grouper
*/
class StackCompressor
{
public:
/// Try to remove local variables until the AST is compilable.
/// @returns true if it was successful.
static bool run(
Dialect const& _dialect,
Object& _object,
bool _optimizeStackAllocation,
size_t _maxIterations
);
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};
}