forked from OSchip/llvm-project
40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
//===---------------- exception_object_alignment.pass.cpp -----------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// UNSUPPORTED: no-exceptions
|
|
|
|
// The situation for the alignment of exception objects is badly messed up
|
|
// before macOS 10.14. The test fails on macOS 10.9 to 10.12, passes on macOS
|
|
// 10.13 (no investigation done), and passes afterwards. Just mark all the OSes
|
|
// before 10.14 as unsupported.
|
|
// UNSUPPORTED: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13}}
|
|
|
|
// Check that the pointer __cxa_allocate_exception returns is aligned to the
|
|
// default alignment for the target architecture.
|
|
|
|
#include <cassert>
|
|
#include <cstdint>
|
|
#include <cxxabi.h>
|
|
#include <type_traits>
|
|
#include <__cxxabi_config.h>
|
|
|
|
struct S {
|
|
int a[4];
|
|
} __attribute__((aligned));
|
|
|
|
int main(int, char**) {
|
|
#if !defined(_LIBCXXABI_ARM_EHABI)
|
|
void *p = __cxxabiv1::__cxa_allocate_exception(16);
|
|
auto i = reinterpret_cast<uintptr_t>(p);
|
|
auto a = std::alignment_of<S>::value;
|
|
assert(i % a == 0);
|
|
__cxxabiv1::__cxa_free_exception(p);
|
|
#endif
|
|
return 0;
|
|
}
|