1 files changed, 63 insertions, 0 deletions
diff --git a/test/Preprocessor/macro-reserved.cpp b/test/Preprocessor/macro-reserved.cpp
new file mode 100644
index 000000000000..ba1594a0af49
--- /dev/null
+++ b/test/Preprocessor/macro-reserved.cpp
@@ -0,0 +1,63 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s
+
+#define for 0    // expected-warning {{keyword is hidden by macro definition}}
+#define final 1
+#define __HAVE_X 0
+#define _HAVE_X 0
+#define X__Y
+
+#undef for
+#undef final
+#undef __HAVE_X
+#undef _HAVE_X
+#undef X__Y
+
+#undef __cplusplus
+#define __cplusplus
+
+// whitelisted definitions
+#define while while
+#define const
+#define static
+#define extern
+#define inline
+
+#undef while
+#undef const
+#undef static
+#undef extern
+#undef inline
+
+#define inline __inline
+#undef  inline
+#define inline __inline__
+#undef  inline
+
+#define inline inline__  // expected-warning {{keyword is hidden by macro definition}}
+#undef  inline
+#define extern __inline  // expected-warning {{keyword is hidden by macro definition}}
+#undef  extern
+#define extern __extern	 // expected-warning {{keyword is hidden by macro definition}}
+#undef  extern
+#define extern __extern__ // expected-warning {{keyword is hidden by macro definition}}
+#undef  extern
+
+#define inline _inline   // expected-warning {{keyword is hidden by macro definition}}
+#undef  inline
+#define volatile   // expected-warning {{keyword is hidden by macro definition}}
+#undef  volatile
+
+
+#pragma clang diagnostic warning "-Wreserved-id-macro"
+
+#define switch if  // expected-warning {{keyword is hidden by macro definition}}
+#define final 1
+#define __HAVE_X 0 // expected-warning {{macro name is a reserved identifier}}
+#define _HAVE_X 0  // expected-warning {{macro name is a reserved identifier}}
+#define X__Y       // expected-warning {{macro name is a reserved identifier}}
+
+#undef __cplusplus // expected-warning {{macro name is a reserved identifier}}
+#undef _HAVE_X     // expected-warning {{macro name is a reserved identifier}}
+#undef X__Y        // expected-warning {{macro name is a reserved identifier}}
+
+int x;