1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index fc396b992f..eec2fc88db 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -3549,8 +3549,9 @@ void Sema::IgnoredValueConversions(Expr *&E) {
   }
 
   DefaultFunctionArrayLvalueConversion(E);
-  RequireCompleteType(E->getExprLoc(), E->getType(),
-                      diag::err_incomplete_type);
+  if (!E->getType()->isVoidType())
+    RequireCompleteType(E->getExprLoc(), E->getType(),
+                        diag::err_incomplete_type);
 }
 
 ExprResult Sema::ActOnFinishFullExpr(Expr *FullExpr) {