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| author | chriseth <chris@ethereum.org> | 2018-10-17 23:05:49 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-10-17 23:05:49 +0800 |
| commit | f2f72ff7eea9a461ae8c71a13428e499c8b91025 (patch) | |
| tree | 02c46d9f13ff85b5a2ad3d124054bdfc71af4791 /libyul/optimiser/UnusedPruner.cpp | |
| parent | 6b7d182658988f22ba23cc3852510864881515e2 (diff) | |
| parent | 16c2a775fd532c301eae3abecc8d68c5c421a9a0 (diff) | |
| download | dexon-solidity-f2f72ff7eea9a461ae8c71a13428e499c8b91025.tar.gz dexon-solidity-f2f72ff7eea9a461ae8c71a13428e499c8b91025.tar.zst dexon-solidity-f2f72ff7eea9a461ae8c71a13428e499c8b91025.zip | |
Merge pull request #5227 from ethereum/doNotRemoveExternallyUsedFunction
Prevent externally used functions from being removed.
Diffstat (limited to 'libyul/optimiser/UnusedPruner.cpp')
| -rw-r--r-- | libyul/optimiser/UnusedPruner.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libyul/optimiser/UnusedPruner.cpp b/libyul/optimiser/UnusedPruner.cpp index 74b6bee4..37a74553 100644 --- a/libyul/optimiser/UnusedPruner.cpp +++ b/libyul/optimiser/UnusedPruner.cpp @@ -33,12 +33,14 @@ using namespace std; using namespace dev; using namespace dev::yul; -UnusedPruner::UnusedPruner(Block& _ast) +UnusedPruner::UnusedPruner(Block& _ast, set<string> const& _externallyUsedFunctions) { ReferencesCounter counter; counter(_ast); m_references = counter.references(); + for (auto const& f: _externallyUsedFunctions) + ++m_references[f]; } void UnusedPruner::operator()(Block& _block) @@ -89,11 +91,11 @@ void UnusedPruner::operator()(Block& _block) ASTModifier::operator()(_block); } -void UnusedPruner::runUntilStabilised(Block& _ast) +void UnusedPruner::runUntilStabilised(Block& _ast, set<string> const& _externallyUsedFunctions) { while (true) { - UnusedPruner pruner(_ast); + UnusedPruner pruner(_ast, _externallyUsedFunctions); pruner(_ast); if (!pruner.shouldRunAgain()) return; |