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-rw-r--r--test/Parser/c1x-alignas.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/test/Parser/c1x-alignas.c b/test/Parser/c1x-alignas.c
index 5dccc99..81cd681 100644
--- a/test/Parser/c1x-alignas.c
+++ b/test/Parser/c1x-alignas.c
@@ -1,7 +1,13 @@
-// RUN: %clang_cc1 -std=c1x -fsyntax-only -verify %s
+// RUN: %clang_cc1 -std=c11 -fsyntax-only -verify %s
+// RUN: not %clang_cc1 -pedantic -fsyntax-only %s 2>&1 | FileCheck -check-prefix=CHECK-EXT %s
_Alignas(4) char c1;
unsigned _Alignas(long) char c2;
char _Alignas(16) c3;
char c4 _Alignas(32); // expected-error {{expected ';' after top level declarator}}
+
+char _Alignas(_Alignof(int)) c5;
+
+// CHECK-EXT: _Alignas is a C11-specific feature
+// CHECK-EXT: _Alignof is a C11-specific feature
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