1 files changed, 1 insertions, 0 deletions
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 1451fd1119..699d81715e 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -3197,6 +3197,7 @@ bool IntExprEvaluator::VisitCastExpr(const CastExpr *E) {
       if (Info.Ctx.getTypeSize(DestType) != Info.Ctx.getTypeSize(SrcType))
         return false;
 
+      LV.Designator.setInvalid();
       LV.moveInto(Result);
       return true;
     }