Add a test for r156092.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156132 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/format-strings.c b/test/Sema/format-strings.c
index 086c5c6..7e96889 100644
--- a/test/Sema/format-strings.c
+++ b/test/Sema/format-strings.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify -Wformat-nonliteral %s
+// RUN: %clang_cc1 -fsyntax-only -verify -Wformat-nonliteral -isystem %S/Inputs %s
#include <stdarg.h>
typedef __typeof(sizeof(int)) size_t;
@@ -521,3 +521,10 @@
dateformat(""); // expected-warning{{format string is empty}}
dateformat(str); // no-warning (using strftime non literal is not unsafe)
}
+
+// Do not warn about unused arguments coming from system headers.
+// <rdar://problem/11317765>
+#include <format-unused-system-args.h>
+void test_unused_system_args(int x) {
+ PRINT1("%d\n", x); // no-warning{{extra argument is system header is OK}}
+}