1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 378930a0e5..69731e45ef 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -4185,7 +4185,10 @@ void AnalyzeImplicitConversions(Sema &S, Expr *OrigE, SourceLocation CC) {
   BinaryOperator *BO = dyn_cast<BinaryOperator>(E);
   bool IsLogicalOperator = BO && BO->isLogicalOp();
   for (Stmt::child_range I = E->children(); I; ++I) {
-    Expr *ChildExpr = cast<Expr>(*I);
+    Expr *ChildExpr = dyn_cast<Expr>(*I);
+    if (!ChildExpr)
+      continue;
+
     if (IsLogicalOperator &&
         isa<StringLiteral>(ChildExpr->IgnoreParenImpCasts()))
       // Ignore checking string literals that are in logical operators.