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236
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1 //===----------------------------------------------------------------------===//
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150
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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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173
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9 // UNSUPPORTED: no-exceptions
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150
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10
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221
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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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252
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15 // UNSUPPORTED: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{9|10|11|12|13}}
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221
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16
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150
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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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221
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30 int main(int, char**) {
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150
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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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