1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: no-exceptions 10 11 // The situation for the alignment of exception objects is badly messed up 12 // before macOS 10.14. The test fails on macOS 10.9 to 10.12, passes on macOS 13 // 10.13 (no investigation done), and passes afterwards. Just mark all the OSes 14 // before 10.14 as unsupported. 15 // UNSUPPORTED: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{9|10|11|12|13}} 16 17 // Check that the pointer __cxa_allocate_exception returns is aligned to the 18 // default alignment for the target architecture. 19 20 #include <cassert> 21 #include <cstdint> 22 #include <cxxabi.h> 23 #include <type_traits> 24 #include <__cxxabi_config.h> 25 26 struct S { 27 int a[4]; 28 } __attribute__((aligned)); 29 main(int,char **)30int main(int, char**) { 31 #if !defined(_LIBCXXABI_ARM_EHABI) 32 void *p = __cxxabiv1::__cxa_allocate_exception(16); 33 auto i = reinterpret_cast<uintptr_t>(p); 34 auto a = std::alignment_of<S>::value; 35 assert(i % a == 0); 36 __cxxabiv1::__cxa_free_exception(p); 37 #endif 38 return 0; 39 } 40