Add parsing of the sentinel attribute. Still need to create the attribute.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57121 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/sentinel-attribute.c b/test/Sema/sentinel-attribute.c
new file mode 100644
index 0000000..a83cda7
--- /dev/null
+++ b/test/Sema/sentinel-attribute.c
@@ -0,0 +1,13 @@
+// RUN: clang -fsyntax-only -verify %s
+int x __attribute__((sentinel)); //expected-warning{{'sentinel' attribute only applies to function or method types}}
+
+void f1(int a, ...) __attribute__ ((sentinel));
+void f2(int a, ...) __attribute__ ((sentinel(1)));
+
+void f3(int a, ...) __attribute__ ((sentinel("hello"))); //expected-error{{'sentinel' attribute requires parameter 1 to be an integer constant}}
+void f4(int a, ...) __attribute__ ((sentinel(1, 2, 3))); //expected-error{{attribute requires 0, 1 or 2 argument(s)}}
+void f4(int a, ...) __attribute__ ((sentinel(-1))); //expected-error{{parameter 1 less than zero}}
+void f4(int a, ...) __attribute__ ((sentinel(0, 2))); // expected-error{{parameter 2 not 0 or 1}}
+
+void f5(int a) __attribute__ ((sentinel)); //expected-warning{{'sentinel' attribute only supported for variadic functions}}
+