1b07d448a625d7399d871079d55491c6b10316e6fNico Weber// RUN: %clang_cc1 -fsyntax-only -verify %s 2b07d448a625d7399d871079d55491c6b10316e6fNico Weber 3b07d448a625d7399d871079d55491c6b10316e6fNico Weberclass string; 4b07d448a625d7399d871079d55491c6b10316e6fNico Webervoid f(const string& s, ...) { // expected-note {{parameter of type 'const string &' is declared here}} 5b07d448a625d7399d871079d55491c6b10316e6fNico Weber __builtin_va_list ap; 6b07d448a625d7399d871079d55491c6b10316e6fNico Weber __builtin_va_start(ap, s); // expected-warning {{'va_start' has undefined behavior with reference types}} 7b07d448a625d7399d871079d55491c6b10316e6fNico Weber} 8