diff options
Diffstat (limited to 'lib/Analysis/GRExprEngine.cpp')
| -rw-r--r-- | lib/Analysis/GRExprEngine.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Analysis/GRExprEngine.cpp b/lib/Analysis/GRExprEngine.cpp index 97e75fa0ac..7459b806e2 100644 --- a/lib/Analysis/GRExprEngine.cpp +++ b/lib/Analysis/GRExprEngine.cpp @@ -1310,6 +1310,11 @@ static bool EvalOSAtomicCompareAndSwap(ExplodedNodeSet<GRState>& Dst, const GRState *stateLoad = N->getState(); SVal theValueVal = stateLoad->getSVal(theValueExpr); SVal oldValueVal = stateLoad->getSVal(oldValueExpr); + + // FIXME: Issue an error. + if (theValueVal.isUndef() || oldValueVal.isUndef()) { + return false; + } // Perform the comparison. SVal Cmp = Engine.EvalBinOp(stateLoad, BinaryOperator::EQ, theValueVal, |