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-rw-r--r--lib/Analysis/ThreadSafety.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Analysis/ThreadSafety.cpp b/lib/Analysis/ThreadSafety.cpp
index 8875943480..196d5e1eb3 100644
--- a/lib/Analysis/ThreadSafety.cpp
+++ b/lib/Analysis/ThreadSafety.cpp
@@ -454,7 +454,6 @@ private:
void buildSExprFromExpr(Expr *MutexExp, Expr *DeclExp, const NamedDecl *D) {
CallingContext CallCtx(D);
-
if (MutexExp) {
if (StringLiteral* SLit = dyn_cast<StringLiteral>(MutexExp)) {
if (SLit->getString() == StringRef("*"))
@@ -562,7 +561,9 @@ public:
bool matches(const SExpr &Other, unsigned i = 0, unsigned j = 0) const {
if (NodeVec[i].matches(Other.NodeVec[j])) {
- unsigned n = NodeVec[i].arity();
+ unsigned ni = NodeVec[i].arity();
+ unsigned nj = Other.NodeVec[j].arity();
+ unsigned n = (ni < nj) ? ni : nj;
bool Result = true;
unsigned ci = i+1; // first child of i
unsigned cj = j+1; // first child of j