1 files changed, 7 insertions, 0 deletions
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 76bdaa2c8f..43b45612b9 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -217,6 +217,7 @@ public:
       { return APValue(E, 0); }
   APValue VisitAddrLabelExpr(AddrLabelExpr *E)
       { return APValue(E, 0); }
+  APValue VisitCallExpr(CallExpr *E);
   APValue VisitConditionalOperator(ConditionalOperator *E);
 };
 } // end anonymous namespace
@@ -306,6 +307,12 @@ APValue PointerExprEvaluator::VisitCastExpr(const CastExpr* E) {
   return APValue();
 }  
 
+APValue PointerExprEvaluator::VisitCallExpr(CallExpr *E) {
+  if (E->isBuiltinCall() == Builtin::BI__builtin___CFStringMakeConstantString)
+    return APValue(E, 0);
+  return APValue();
+}
+
 APValue PointerExprEvaluator::VisitConditionalOperator(ConditionalOperator *E) {
   bool BoolResult;
   if (!HandleConversionToBool(E->getCond(), BoolResult, Info))