diff --git a/clang/test/Parser/GH214128.cpp b/clang/test/Parser/GH214128.cpp
index a6021ce36d781..60e171fbf8230 100644
--- a/clang/test/Parser/GH214128.cpp
+++ b/clang/test/Parser/GH214128.cpp
@@ -1,9 +1,15 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -std=c++20 -fsyntax-only -verify %s
 
-i < 0
-// expected-error@-1 {{no template named 'i'}}
-// expected-error@-2 {{expected '>'}}
-// expected-note@-3 {{to match this '<'}}
+i < 0;
+#if __cplusplus <= 201703L
+// expected-error@-2 {{no template named 'i'}}
+#endif
+// expected-error@-4 {{expected '>'}}
+// expected-note@-5 {{to match this '<'}}
+#if __cplusplus > 201703L
+// expected-warning@-7 {{declaration does not declare anything}}
+#endif
 
 void f() {
   struct __is_pod; // expected-warning {{keyword '__is_pod' will be made available as an identifier for the remainder of the translation unit}}