Testcase for r183015.
I hate svn add.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183019 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/builtins-gnu-mode.c b/test/Sema/builtins-gnu-mode.c
new file mode 100644
index 0000000..718803e
--- /dev/null
+++ b/test/Sema/builtins-gnu-mode.c
@@ -0,0 +1,27 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c99 %s
+// PR16138
+// expected-no-diagnostics
+
+int alloca;
+int stpcpy;
+int stpncpy;
+int strdup;
+int strndup;
+int index;
+int rindex;
+int bzero;
+int strcasecmp;
+int strncasecmp;
+int _exit;
+int vfork;
+int _setjmp;
+int __sigsetjmp;
+int sigsetjmp;
+int setjmp_syscall;
+int savectx;
+int qsetjmp;
+int getcontext;
+int _longjmp;
+int siglongjmp;
+int strlcpy;
+int strlcat;