1*67e74705SXin Li// RUN: %clang_cc1 -fobjc-arc -fsyntax-only -Woverriding-method-mismatch %s -verify 2*67e74705SXin Li 3*67e74705SXin Li__attribute__((objc_root_class)) 4*67e74705SXin Li@interface NSFoo 5*67e74705SXin Li@end 6*67e74705SXin Li 7*67e74705SXin Li// ARC qualifiers stacked with nullability. 8*67e74705SXin Livoid accepts_arc_qualified(NSFoo * __unsafe_unretained _Nonnull obj) { 9*67e74705SXin Li accepts_arc_qualified(0); // expected-warning{{null passed to a callee that requires a non-null argument}} 10*67e74705SXin Li} 11