Add a test for diagnose_if.

Forgot to add this file as a part of r291418.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@291493 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/SemaCXX/diagnose_if-ext.cpp b/test/SemaCXX/diagnose_if-ext.cpp
new file mode 100644 (file)
index 0000000..d5625b5
--- /dev/null
+++ b/test/SemaCXX/diagnose_if-ext.cpp
@@ -0,0 +1,8 @@
+// RUN: %clang_cc1 -Wpedantic -fsyntax-only %s -verify
+
+void foo() __attribute__((diagnose_if(1, "", "error"))); // expected-warning{{'diagnose_if' is a clang extension}}
+void foo(int a) __attribute__((diagnose_if(a, "", "error"))); // expected-warning{{'diagnose_if' is a clang extension}}
+// FIXME: When diagnose_if gets a CXX11 spelling, this should be enabled.
+#if 0
+[[clang::diagnose_if(a, "", "error")]] void foo(double a);
+#endif