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| author | chriseth <chris@ethereum.org> | 2018-12-13 23:46:48 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-12-13 23:46:48 +0800 |
| commit | 633dd44576e267f4728b86ec69a9cc56517a1f89 (patch) | |
| tree | 9384c8d7a4cccdc7e2db2176481978779bc17baf /libyul/optimiser/DataFlowAnalyzer.cpp | |
| parent | 996bfb2a83bf1d99192575fa05ba43e4bc05ef0c (diff) | |
| parent | b11d413720763e5d4a95260846293a15af7d3b54 (diff) | |
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Merge pull request #5649 from ethereum/returnsAreZero
[Yul] Consider return variables to be zero initially.
Diffstat (limited to 'libyul/optimiser/DataFlowAnalyzer.cpp')
| -rw-r--r-- | libyul/optimiser/DataFlowAnalyzer.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libyul/optimiser/DataFlowAnalyzer.cpp b/libyul/optimiser/DataFlowAnalyzer.cpp index 7bff2c89..c8d236dc 100644 --- a/libyul/optimiser/DataFlowAnalyzer.cpp +++ b/libyul/optimiser/DataFlowAnalyzer.cpp @@ -96,7 +96,10 @@ void DataFlowAnalyzer::operator()(FunctionDefinition& _fun) for (auto const& parameter: _fun.parameters) m_variableScopes.back().variables.emplace(parameter.name); for (auto const& var: _fun.returnVariables) + { m_variableScopes.back().variables.emplace(var.name); + handleAssignment({var.name}, nullptr); + } ASTModifier::operator()(_fun); popScope(); |