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