mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
437 lines
14 KiB
C++
437 lines
14 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <test/libyul/YulOptimizerTest.h>
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#include <test/libsolidity/util/SoltestErrors.h>
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#include <test/Options.h>
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#include <libyul/optimiser/BlockFlattener.h>
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#include <libyul/optimiser/VarDeclInitializer.h>
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#include <libyul/optimiser/VarNameCleaner.h>
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#include <libyul/optimiser/ControlFlowSimplifier.h>
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#include <libyul/optimiser/DeadCodeEliminator.h>
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#include <libyul/optimiser/Disambiguator.h>
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#include <libyul/optimiser/CallGraphGenerator.h>
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#include <libyul/optimiser/ConditionalUnsimplifier.h>
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#include <libyul/optimiser/ConditionalSimplifier.h>
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#include <libyul/optimiser/CommonSubexpressionEliminator.h>
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#include <libyul/optimiser/NameCollector.h>
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#include <libyul/optimiser/EquivalentFunctionCombiner.h>
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#include <libyul/optimiser/ExpressionSplitter.h>
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#include <libyul/optimiser/FunctionGrouper.h>
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#include <libyul/optimiser/FunctionHoister.h>
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#include <libyul/optimiser/ExpressionInliner.h>
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#include <libyul/optimiser/FullInliner.h>
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#include <libyul/optimiser/ForLoopConditionIntoBody.h>
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#include <libyul/optimiser/ForLoopConditionOutOfBody.h>
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#include <libyul/optimiser/ForLoopInitRewriter.h>
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#include <libyul/optimiser/LoadResolver.h>
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#include <libyul/optimiser/MainFunction.h>
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#include <libyul/optimiser/NameDisplacer.h>
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#include <libyul/optimiser/Rematerialiser.h>
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#include <libyul/optimiser/ExpressionSimplifier.h>
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#include <libyul/optimiser/UnusedPruner.h>
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#include <libyul/optimiser/ExpressionJoiner.h>
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#include <libyul/optimiser/OptimiserStep.h>
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#include <libyul/optimiser/SSAReverser.h>
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#include <libyul/optimiser/SSATransform.h>
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#include <libyul/optimiser/Semantics.h>
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#include <libyul/optimiser/RedundantAssignEliminator.h>
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#include <libyul/optimiser/StructuralSimplifier.h>
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#include <libyul/optimiser/StackCompressor.h>
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#include <libyul/optimiser/Suite.h>
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#include <libyul/backends/evm/ConstantOptimiser.h>
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#include <libyul/backends/evm/EVMDialect.h>
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#include <libyul/backends/evm/EVMMetrics.h>
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#include <libyul/backends/wasm/WordSizeTransform.h>
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#include <libyul/AsmPrinter.h>
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#include <libyul/AsmParser.h>
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#include <libyul/AsmAnalysis.h>
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#include <libyul/AssemblyStack.h>
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#include <liblangutil/SourceReferenceFormatter.h>
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#include <liblangutil/ErrorReporter.h>
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#include <liblangutil/Scanner.h>
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#include <libdevcore/AnsiColorized.h>
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#include <boost/test/unit_test.hpp>
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#include <boost/algorithm/string.hpp>
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#include <fstream>
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#include <variant>
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using namespace dev;
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using namespace langutil;
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using namespace yul;
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using namespace yul::test;
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using namespace dev::solidity;
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using namespace dev::solidity::test;
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using namespace std;
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YulOptimizerTest::YulOptimizerTest(string const& _filename)
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{
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boost::filesystem::path path(_filename);
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if (path.empty() || std::next(path.begin()) == path.end() || std::next(std::next(path.begin())) == path.end())
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BOOST_THROW_EXCEPTION(runtime_error("Filename path has to contain a directory: \"" + _filename + "\"."));
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m_optimizerStep = std::prev(std::prev(path.end()))->string();
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ifstream file(_filename);
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soltestAssert(file, "Cannot open test contract: \"" + _filename + "\".");
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file.exceptions(ios::badbit);
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m_source = parseSourceAndSettings(file);
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if (m_settings.count("yul"))
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{
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m_yul = true;
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m_validatedSettings["yul"] = "true";
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m_settings.erase("yul");
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}
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if (m_settings.count("step"))
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{
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m_validatedSettings["step"] = m_settings["step"];
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m_settings.erase("step");
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}
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m_expectation = parseSimpleExpectations(file);
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}
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TestCase::TestResult YulOptimizerTest::run(ostream& _stream, string const& _linePrefix, bool const _formatted)
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{
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if (!parse(_stream, _linePrefix, _formatted))
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return TestResult::FatalError;
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soltestAssert(m_dialect, "Dialect not set.");
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updateContext();
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if (m_optimizerStep == "disambiguator")
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disambiguate();
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else if (m_optimizerStep == "nameDisplacer")
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{
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disambiguate();
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NameDisplacer{
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*m_nameDispenser,
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{"illegal1"_yulstring, "illegal2"_yulstring, "illegal3"_yulstring, "illegal4"_yulstring, "illegal5"_yulstring}
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}(*m_ast);
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}
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else if (m_optimizerStep == "blockFlattener")
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{
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disambiguate();
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BlockFlattener::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "constantOptimiser")
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{
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GasMeter meter(dynamic_cast<EVMDialect const&>(*m_dialect), false, 200);
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ConstantOptimiser{dynamic_cast<EVMDialect const&>(*m_dialect), meter}(*m_ast);
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}
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else if (m_optimizerStep == "varDeclInitializer")
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VarDeclInitializer::run(*m_context, *m_ast);
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else if (m_optimizerStep == "varNameCleaner")
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VarNameCleaner::run(*m_context, *m_ast);
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else if (m_optimizerStep == "forLoopConditionIntoBody")
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{
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disambiguate();
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ForLoopConditionIntoBody::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "forLoopInitRewriter")
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{
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disambiguate();
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ForLoopInitRewriter::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "commonSubexpressionEliminator")
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{
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disambiguate();
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CommonSubexpressionEliminator::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "conditionalUnsimplifier")
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{
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disambiguate();
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ConditionalUnsimplifier::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "conditionalSimplifier")
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{
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disambiguate();
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ConditionalSimplifier::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "expressionSplitter")
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ExpressionSplitter::run(*m_context, *m_ast);
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else if (m_optimizerStep == "expressionJoiner")
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{
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disambiguate();
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ExpressionJoiner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "splitJoin")
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{
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disambiguate();
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ExpressionSplitter::run(*m_context, *m_ast);
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ExpressionJoiner::run(*m_context, *m_ast);
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ExpressionJoiner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "functionGrouper")
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{
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disambiguate();
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FunctionGrouper::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "functionHoister")
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{
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disambiguate();
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FunctionHoister::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "expressionInliner")
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{
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disambiguate();
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ExpressionInliner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "fullInliner")
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{
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disambiguate();
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FunctionHoister::run(*m_context, *m_ast);
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FunctionGrouper::run(*m_context, *m_ast);
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ExpressionSplitter::run(*m_context, *m_ast);
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FullInliner::run(*m_context, *m_ast);
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ExpressionJoiner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "mainFunction")
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{
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disambiguate();
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FunctionGrouper::run(*m_context, *m_ast);
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MainFunction::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "rematerialiser")
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{
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disambiguate();
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Rematerialiser::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "expressionSimplifier")
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{
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disambiguate();
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ExpressionSimplifier::run(*m_context, *m_ast);
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ExpressionSimplifier::run(*m_context, *m_ast);
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ExpressionSimplifier::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "fullSimplify")
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{
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disambiguate();
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ExpressionSplitter::run(*m_context, *m_ast);
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ForLoopInitRewriter::run(*m_context, *m_ast);
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CommonSubexpressionEliminator::run(*m_context, *m_ast);
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ExpressionSimplifier::run(*m_context, *m_ast);
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UnusedPruner::run(*m_context, *m_ast);
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DeadCodeEliminator::run(*m_context, *m_ast);
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ExpressionJoiner::run(*m_context, *m_ast);
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ExpressionJoiner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "unusedPruner")
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{
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disambiguate();
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UnusedPruner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "deadCodeEliminator")
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{
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disambiguate();
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ForLoopInitRewriter::run(*m_context, *m_ast);
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DeadCodeEliminator::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "ssaTransform")
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{
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disambiguate();
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SSATransform::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "redundantAssignEliminator")
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{
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disambiguate();
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RedundantAssignEliminator::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "ssaPlusCleanup")
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{
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disambiguate();
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SSATransform::run(*m_context, *m_ast);
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RedundantAssignEliminator::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "loadResolver")
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{
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disambiguate();
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ForLoopInitRewriter::run(*m_context, *m_ast);
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ExpressionSplitter::run(*m_context, *m_ast);
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CommonSubexpressionEliminator::run(*m_context, *m_ast);
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ExpressionSimplifier::run(*m_context, *m_ast);
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LoadResolver::run(*m_context, *m_ast);
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UnusedPruner::run(*m_context, *m_ast);
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ExpressionJoiner::run(*m_context, *m_ast);
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ExpressionJoiner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "controlFlowSimplifier")
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{
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disambiguate();
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ControlFlowSimplifier::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "structuralSimplifier")
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{
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disambiguate();
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ForLoopInitRewriter::run(*m_context, *m_ast);
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LiteralRematerialiser::run(*m_context, *m_ast);
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StructuralSimplifier::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "equivalentFunctionCombiner")
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{
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disambiguate();
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EquivalentFunctionCombiner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "ssaReverser")
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{
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disambiguate();
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SSAReverser::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "ssaAndBack")
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{
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disambiguate();
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// apply SSA
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SSATransform::run(*m_context, *m_ast);
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RedundantAssignEliminator::run(*m_context, *m_ast);
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// reverse SSA
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SSAReverser::run(*m_context, *m_ast);
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CommonSubexpressionEliminator::run(*m_context, *m_ast);
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UnusedPruner::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "stackCompressor")
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{
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disambiguate();
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FunctionGrouper::run(*m_context, *m_ast);
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size_t maxIterations = 16;
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Object obj;
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obj.code = m_ast;
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StackCompressor::run(*m_dialect, obj, true, maxIterations);
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m_ast = obj.code;
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BlockFlattener::run(*m_context, *m_ast);
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}
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else if (m_optimizerStep == "wordSizeTransform")
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{
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disambiguate();
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ExpressionSplitter::run(*m_context, *m_ast);
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WordSizeTransform::run(*m_dialect, *m_ast, *m_nameDispenser);
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}
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else if (m_optimizerStep == "fullSuite")
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{
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GasMeter meter(dynamic_cast<EVMDialect const&>(*m_dialect), false, 200);
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yul::Object obj;
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obj.code = m_ast;
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obj.analysisInfo = m_analysisInfo;
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OptimiserSuite::run(*m_dialect, &meter, obj, true);
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}
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else
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{
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AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::RED}) << _linePrefix << "Invalid optimizer step: " << m_optimizerStep << endl;
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return TestResult::FatalError;
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}
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m_obtainedResult = AsmPrinter{m_yul}(*m_ast) + "\n";
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if (m_optimizerStep != m_validatedSettings["step"])
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{
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string nextIndentLevel = _linePrefix + " ";
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AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::CYAN}) <<
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_linePrefix <<
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"Invalid optimizer step. Given: \"" <<
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m_validatedSettings["step"] <<
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"\", should be: \"" <<
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m_optimizerStep <<
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"\"." <<
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endl;
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return TestResult::FatalError;
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}
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if (m_expectation != m_obtainedResult)
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{
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string nextIndentLevel = _linePrefix + " ";
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AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::CYAN}) << _linePrefix << "Expected result:" << endl;
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// TODO could compute a simple diff with highlighted lines
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printIndented(_stream, m_expectation, nextIndentLevel);
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AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::CYAN}) << _linePrefix << "Obtained result:" << endl;
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printIndented(_stream, m_obtainedResult, nextIndentLevel);
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return TestResult::Failure;
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}
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return TestResult::Success;
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}
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void YulOptimizerTest::printSource(ostream& _stream, string const& _linePrefix, bool const) const
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{
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printIndented(_stream, m_source, _linePrefix);
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}
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void YulOptimizerTest::printUpdatedSettings(ostream& _stream, const string& _linePrefix, const bool _formatted)
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{
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m_validatedSettings["step"] = m_optimizerStep;
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EVMVersionRestrictedTestCase::printUpdatedSettings(_stream, _linePrefix, _formatted);
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}
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void YulOptimizerTest::printUpdatedExpectations(ostream& _stream, string const& _linePrefix) const
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{
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printIndented(_stream, m_obtainedResult, _linePrefix);
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}
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void YulOptimizerTest::printIndented(ostream& _stream, string const& _output, string const& _linePrefix) const
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{
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stringstream output(_output);
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string line;
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while (getline(output, line))
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_stream << _linePrefix << line << endl;
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}
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bool YulOptimizerTest::parse(ostream& _stream, string const& _linePrefix, bool const _formatted)
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{
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AssemblyStack stack(
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dev::test::Options::get().evmVersion(),
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m_yul ? AssemblyStack::Language::Yul : AssemblyStack::Language::StrictAssembly,
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dev::solidity::OptimiserSettings::none()
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);
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if (!stack.parseAndAnalyze("", m_source) || !stack.errors().empty())
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{
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AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::RED}) << _linePrefix << "Error parsing source." << endl;
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printErrors(_stream, stack.errors());
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return false;
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}
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m_dialect = m_yul ? &Dialect::yul() : &EVMDialect::strictAssemblyForEVMObjects(dev::test::Options::get().evmVersion());
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m_ast = stack.parserResult()->code;
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m_analysisInfo = stack.parserResult()->analysisInfo;
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return true;
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}
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void YulOptimizerTest::disambiguate()
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{
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*m_ast = std::get<Block>(Disambiguator(*m_dialect, *m_analysisInfo)(*m_ast));
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m_analysisInfo.reset();
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updateContext();
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}
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void YulOptimizerTest::updateContext()
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{
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m_nameDispenser = make_unique<NameDispenser>(*m_dialect, *m_ast, m_reservedIdentifiers);
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m_context = unique_ptr<OptimiserStepContext>(new OptimiserStepContext{*m_dialect, *m_nameDispenser, m_reservedIdentifiers});
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}
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void YulOptimizerTest::printErrors(ostream& _stream, ErrorList const& _errors)
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{
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SourceReferenceFormatter formatter(_stream);
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for (auto const& error: _errors)
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formatter.printErrorInformation(*error);
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}
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