1 files changed, 12 insertions, 0 deletions
diff --git a/test/Sema/MicrosoftExtensions.c b/test/Sema/MicrosoftExtensions.c
index 0ef72855684d..cb9fee9dc1d4 100644
--- a/test/Sema/MicrosoftExtensions.c
+++ b/test/Sema/MicrosoftExtensions.c
@@ -67,3 +67,15 @@ void foo()
   var.bad2;   // expected-error {{no member named 'bad2' in 'struct test'}}
 }
 
+// Enumeration types with a fixed underlying type.
+const int seventeen = 17;
+typedef int Int;
+
+struct X0 {
+  enum E1 : Int { SomeOtherValue } field;  // expected-warning{{enumeration types with a fixed underlying type are a Microsoft extension}}
+  enum E1 : seventeen;
+};
+
+enum : long long {  // expected-warning{{enumeration types with a fixed underlying type are a Microsoft extension}}
+  SomeValue = 0x100000000
+};