29 lines · cpp
1// RUN: %clang_cc1 -triple thumbv7-windows -fms-compatibility -fsyntax-only %s -verify2// RUN: %clang_cc1 -triple aarch64-windows -fms-compatibility -fsyntax-only %s -verify3// expected-no-diagnostics4 5extern "C" {6typedef char * va_list;7void __va_start(va_list *, ...);8}9 10int test___va_start(int i, ...) {11 va_list ap;12 __va_start(&ap, ( &reinterpret_cast<const char &>(i) ),13 ( (sizeof(i) + 4 - 1) & ~(4 - 1) ),14 ( &reinterpret_cast<const char &>(i) ));15 return (*(int *)((ap += ( (sizeof(int) + 4 - 1) & ~(4 - 1) ) + ( ((va_list)0 - (ap)) & (__alignof(int) - 1) )) - ( (sizeof(int) + 4 - 1) & ~(4 - 1) )));16}17 18int builtin(int i, ...) {19 __builtin_va_list ap;20 __builtin_va_start(ap, i);21 return __builtin_va_arg(ap, int);22}23 24void test___va_start_ignore_const(const char *format, ...) {25 va_list args;26 ((void)(__va_start(&args, (&const_cast<char &>(reinterpret_cast<const volatile char &>(format))), ((sizeof(format) + 4 - 1) & ~(4 - 1)), (&const_cast<char &>(reinterpret_cast<const volatile char &>(format))))));27}28 29