diff options
Diffstat (limited to 'libyul/optimiser/SimplificationRules.cpp')
| -rw-r--r-- | libyul/optimiser/SimplificationRules.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libyul/optimiser/SimplificationRules.cpp b/libyul/optimiser/SimplificationRules.cpp index b3190fef..8ed63fa8 100644 --- a/libyul/optimiser/SimplificationRules.cpp +++ b/libyul/optimiser/SimplificationRules.cpp @@ -114,7 +114,8 @@ bool Pattern::matches(Expression const& _expr, map<YulString, Expression const*> { YulString varName = boost::get<Identifier>(_expr).name; if (_ssaValues.count(varName)) - expr = _ssaValues.at(varName); + if (Expression const* new_expr = _ssaValues.at(varName)) + expr = new_expr; } assertThrow(expr, OptimizerException, ""); |