diff options
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/Checker/AttrNonNullChecker.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/clang/lib/Checker/AttrNonNullChecker.cpp b/clang/lib/Checker/AttrNonNullChecker.cpp index 471cf197170..d0bccb27b40 100644 --- a/clang/lib/Checker/AttrNonNullChecker.cpp +++ b/clang/lib/Checker/AttrNonNullChecker.cpp @@ -60,11 +60,16 @@ void AttrNonNullChecker::PreVisitCallExpr(CheckerContext &C, if (!Att->isNonNull(idx)) continue; - const DefinedSVal &V = cast<DefinedSVal>(state->getSVal(*I)); + SVal V = state->getSVal(*I); + DefinedSVal *DV = dyn_cast<DefinedSVal>(&V); + + // If the value is unknown or undefined, we can't perform this check. + if (!DV) + continue; ConstraintManager &CM = C.getConstraintManager(); const GRState *stateNotNull, *stateNull; - llvm::tie(stateNotNull, stateNull) = CM.AssumeDual(state, V); + llvm::tie(stateNotNull, stateNull) = CM.AssumeDual(state, *DV); if (stateNull && !stateNotNull) { // Generate an error node. Check for a null node in case |
