2018-10-16 19:39:22 +00:00
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/*
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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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* Optimiser suite that combines all steps and also provides the settings for the heuristics.
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*/
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#include <libyul/optimiser/Suite.h>
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#include <libyul/optimiser/Disambiguator.h>
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2018-12-13 14:26:01 +00:00
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#include <libyul/optimiser/VarDeclInitializer.h>
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2019-01-08 14:19:35 +00:00
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#include <libyul/optimiser/BlockFlattener.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/EquivalentFunctionCombiner.h>
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#include <libyul/optimiser/ExpressionSplitter.h>
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#include <libyul/optimiser/ExpressionJoiner.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/ForLoopInitRewriter.h>
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#include <libyul/optimiser/Rematerialiser.h>
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#include <libyul/optimiser/UnusedPruner.h>
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#include <libyul/optimiser/ExpressionSimplifier.h>
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#include <libyul/optimiser/CommonSubexpressionEliminator.h>
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#include <libyul/optimiser/SSAReverser.h>
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#include <libyul/optimiser/SSATransform.h>
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2019-02-04 16:30:29 +00:00
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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/RedundantAssignEliminator.h>
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#include <libyul/AsmAnalysisInfo.h>
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#include <libyul/AsmData.h>
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#include <libyul/AsmPrinter.h>
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#include <libdevcore/CommonData.h>
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using namespace std;
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using namespace dev;
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using namespace yul;
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void OptimiserSuite::run(
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shared_ptr<Dialect> const& _dialect,
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Block& _ast,
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AsmAnalysisInfo const& _analysisInfo,
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set<YulString> const& _externallyUsedIdentifiers
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)
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{
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set<YulString> reservedIdentifiers = _externallyUsedIdentifiers;
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Block ast = boost::get<Block>(Disambiguator(*_dialect, _analysisInfo, reservedIdentifiers)(_ast));
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(VarDeclInitializer{})(ast);
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(FunctionHoister{})(ast);
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(BlockFlattener{})(ast);
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(FunctionGrouper{})(ast);
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EquivalentFunctionCombiner::run(ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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(ForLoopInitRewriter{})(ast);
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(BlockFlattener{})(ast);
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StructuralSimplifier{*_dialect}(ast);
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(BlockFlattener{})(ast);
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// None of the above can make stack problems worse.
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NameDispenser dispenser{*_dialect, ast};
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for (size_t i = 0; i < 4; i++)
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{
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{
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// Turn into SSA and simplify
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ExpressionSplitter{*_dialect, dispenser}(ast);
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SSATransform::run(ast, dispenser);
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RedundantAssignEliminator::run(*_dialect, ast);
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RedundantAssignEliminator::run(*_dialect, ast);
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ExpressionSimplifier::run(*_dialect, ast);
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CommonSubexpressionEliminator{*_dialect}(ast);
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}
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{
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// still in SSA, perform structural simplification
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StructuralSimplifier{*_dialect}(ast);
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(BlockFlattener{})(ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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}
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{
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// simplify again
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CommonSubexpressionEliminator{*_dialect}(ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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}
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{
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// reverse SSA
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SSAReverser::run(ast);
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CommonSubexpressionEliminator{*_dialect}(ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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ExpressionJoiner::run(ast);
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ExpressionJoiner::run(ast);
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}
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// should have good "compilability" property here.
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{
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// run functional expression inliner
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ExpressionInliner(*_dialect, ast).run();
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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}
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{
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// Turn into SSA again and simplify
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ExpressionSplitter{*_dialect, dispenser}(ast);
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SSATransform::run(ast, dispenser);
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RedundantAssignEliminator::run(*_dialect, ast);
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RedundantAssignEliminator::run(*_dialect, ast);
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CommonSubexpressionEliminator{*_dialect}(ast);
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}
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{
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// run full inliner
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(FunctionGrouper{})(ast);
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EquivalentFunctionCombiner::run(ast);
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FullInliner{ast, dispenser}.run();
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(BlockFlattener{})(ast);
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}
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{
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// SSA plus simplify
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SSATransform::run(ast, dispenser);
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RedundantAssignEliminator::run(*_dialect, ast);
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RedundantAssignEliminator::run(*_dialect, ast);
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ExpressionSimplifier::run(*_dialect, ast);
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StructuralSimplifier{*_dialect}(ast);
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(BlockFlattener{})(ast);
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CommonSubexpressionEliminator{*_dialect}(ast);
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SSATransform::run(ast, dispenser);
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RedundantAssignEliminator::run(*_dialect, ast);
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RedundantAssignEliminator::run(*_dialect, ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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CommonSubexpressionEliminator{*_dialect}(ast);
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}
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}
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// Make source short and pretty.
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ExpressionJoiner::run(ast);
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Rematerialiser::run(*_dialect, ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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ExpressionJoiner::run(ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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ExpressionJoiner::run(ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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2019-01-17 15:11:55 +00:00
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SSAReverser::run(ast);
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CommonSubexpressionEliminator{*_dialect}(ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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2018-10-16 19:39:22 +00:00
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ExpressionJoiner::run(ast);
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Rematerialiser::run(*_dialect, ast);
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UnusedPruner::runUntilStabilised(*_dialect, ast, reservedIdentifiers);
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2019-02-04 16:30:29 +00:00
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(FunctionGrouper{})(ast);
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StackCompressor::run(_dialect, ast);
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(BlockFlattener{})(ast);
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2018-10-16 19:39:22 +00:00
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_ast = std::move(ast);
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}
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