mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
298 lines
8.3 KiB
C++
298 lines
8.3 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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/**
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* Interactive yul optimizer
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*/
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#include <libdevcore/CommonIO.h>
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#include <liblangutil/ErrorReporter.h>
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#include <liblangutil/Scanner.h>
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#include <libyul/AsmAnalysis.h>
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#include <libyul/AsmAnalysisInfo.h>
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#include <libsolidity/parsing/Parser.h>
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#include <libyul/AsmData.h>
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#include <libyul/AsmParser.h>
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#include <libyul/AsmPrinter.h>
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#include <libyul/Object.h>
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#include <liblangutil/SourceReferenceFormatter.h>
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#include <libyul/optimiser/BlockFlattener.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/CommonSubexpressionEliminator.h>
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#include <libyul/optimiser/ConditionalSimplifier.h>
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#include <libyul/optimiser/ControlFlowSimplifier.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/MainFunction.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/DeadCodeEliminator.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/RedundantAssignEliminator.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/StackCompressor.h>
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#include <libyul/optimiser/StructuralSimplifier.h>
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#include <libyul/optimiser/Semantics.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/LoadResolver.h>
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#include <libyul/backends/evm/EVMDialect.h>
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#include <libdevcore/JSON.h>
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#include <boost/program_options.hpp>
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#include <string>
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#include <sstream>
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#include <iostream>
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#include <variant>
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using namespace std;
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using namespace dev;
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using namespace langutil;
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using namespace dev::solidity;
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using namespace yul;
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namespace po = boost::program_options;
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class YulOpti
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{
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public:
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void printErrors()
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{
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SourceReferenceFormatter formatter(cout);
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for (auto const& error: m_errors)
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formatter.printErrorInformation(*error);
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}
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bool parse(string const& _input)
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{
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ErrorReporter errorReporter(m_errors);
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shared_ptr<Scanner> scanner = make_shared<Scanner>(CharStream(_input, ""));
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m_ast = yul::Parser(errorReporter, m_dialect).parse(scanner, false);
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if (!m_ast || !errorReporter.errors().empty())
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{
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cout << "Error parsing source." << endl;
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printErrors();
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return false;
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}
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m_analysisInfo = make_shared<yul::AsmAnalysisInfo>();
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AsmAnalyzer analyzer(
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*m_analysisInfo,
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errorReporter,
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m_dialect
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);
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if (!analyzer.analyze(*m_ast) || !errorReporter.errors().empty())
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{
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cout << "Error analyzing source." << endl;
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printErrors();
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return false;
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}
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return true;
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}
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void runInteractive(string source)
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{
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bool disambiguated = false;
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while (true)
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{
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cout << "----------------------" << endl;
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cout << source << endl;
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if (!parse(source))
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return;
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set<YulString> reservedIdentifiers;
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if (!disambiguated)
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{
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*m_ast = std::get<yul::Block>(Disambiguator(m_dialect, *m_analysisInfo)(*m_ast));
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m_analysisInfo.reset();
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m_nameDispenser = make_shared<NameDispenser>(m_dialect, *m_ast, reservedIdentifiers);
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disambiguated = true;
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}
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cout << "(q)quit/(f)flatten/(c)se/initialize var(d)ecls/(x)plit/(j)oin/(g)rouper/(h)oister/" << endl;
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cout << " (e)xpr inline/(i)nline/(s)implify/varname c(l)eaner/(u)nusedprune/ss(a) transform/" << endl;
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cout << " (r)edundant assign elim./re(m)aterializer/f(o)r-loop-init-rewriter/for-loop-condition-(I)nto-body/" << endl;
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cout << " for-loop-condition-(O)ut-of-body/s(t)ructural simplifier/equi(v)alent function combiner/ssa re(V)erser/" << endl;
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cout << " co(n)trol flow simplifier/stack com(p)ressor/(D)ead code eliminator/(L)oad resolver/" << endl;
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cout << " (C)onditional simplifier?" << endl;
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cout.flush();
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int option = readStandardInputChar();
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cout << ' ' << char(option) << endl;
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OptimiserStepContext context{m_dialect, *m_nameDispenser, reservedIdentifiers};
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switch (option)
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{
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case 'q':
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return;
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case 'f':
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BlockFlattener::run(context, *m_ast);
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break;
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case 'o':
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ForLoopInitRewriter::run(context, *m_ast);
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break;
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case 'O':
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ForLoopConditionOutOfBody::run(context, *m_ast);
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break;
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case 'I':
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ForLoopConditionIntoBody::run(context, *m_ast);
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break;
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case 'c':
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CommonSubexpressionEliminator::run(context, *m_ast);
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break;
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case 'C':
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ConditionalSimplifier::run(context, *m_ast);
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break;
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case 'd':
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VarDeclInitializer::run(context, *m_ast);
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break;
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case 'l':
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VarNameCleaner::run(context, *m_ast);
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break;
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case 'x':
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ExpressionSplitter::run(context, *m_ast);
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break;
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case 'j':
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ExpressionJoiner::run(context, *m_ast);
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break;
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case 'g':
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FunctionGrouper::run(context, *m_ast);
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break;
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case 'h':
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FunctionHoister::run(context, *m_ast);
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break;
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case 'e':
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ExpressionInliner::run(context, *m_ast);
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break;
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case 'i':
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FullInliner::run(context, *m_ast);
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break;
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case 's':
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ExpressionSimplifier::run(context, *m_ast);
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break;
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case 't':
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StructuralSimplifier::run(context, *m_ast);
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break;
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case 'T':
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LiteralRematerialiser::run(context, *m_ast);
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break;
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case 'n':
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ControlFlowSimplifier::run(context, *m_ast);
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break;
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case 'u':
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UnusedPruner::run(context, *m_ast);
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break;
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case 'D':
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DeadCodeEliminator::run(context, *m_ast);
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break;
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case 'a':
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SSATransform::run(context, *m_ast);
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break;
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case 'r':
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RedundantAssignEliminator::run(context, *m_ast);
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break;
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case 'm':
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Rematerialiser::run(context, *m_ast);
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break;
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case 'v':
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EquivalentFunctionCombiner::run(context, *m_ast);
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break;
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case 'V':
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SSAReverser::run(context, *m_ast);
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break;
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case 'p':
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{
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Object obj;
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obj.code = m_ast;
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StackCompressor::run(m_dialect, obj, true, 16);
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break;
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}
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case 'L':
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LoadResolver::run(context, *m_ast);
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break;
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default:
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cout << "Unknown option." << endl;
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}
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source = AsmPrinter{}(*m_ast);
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}
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}
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private:
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ErrorList m_errors;
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shared_ptr<yul::Block> m_ast;
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Dialect const& m_dialect{EVMDialect::strictAssemblyForEVMObjects(EVMVersion{})};
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shared_ptr<AsmAnalysisInfo> m_analysisInfo;
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shared_ptr<NameDispenser> m_nameDispenser;
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};
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int main(int argc, char** argv)
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{
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po::options_description options(
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R"(yulopti, yul optimizer exploration tool.
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Usage: yulopti [Options] <file>
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Reads <file> as yul code and applies optimizer steps to it,
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interactively read from stdin.
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Allowed options)",
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po::options_description::m_default_line_length,
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po::options_description::m_default_line_length - 23);
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options.add_options()
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(
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"input-file",
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po::value<string>(),
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"input file"
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)
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("help", "Show this help screen.");
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// All positional options should be interpreted as input files
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po::positional_options_description filesPositions;
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filesPositions.add("input-file", 1);
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po::variables_map arguments;
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try
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{
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po::command_line_parser cmdLineParser(argc, argv);
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cmdLineParser.options(options).positional(filesPositions);
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po::store(cmdLineParser.run(), arguments);
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}
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catch (po::error const& _exception)
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{
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cerr << _exception.what() << endl;
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return 1;
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}
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string input;
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if (arguments.count("input-file"))
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YulOpti{}.runInteractive(readFileAsString(arguments["input-file"].as<string>()));
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else
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cout << options;
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return 0;
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}
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