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150
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1 //===---------------- exception_object_alignment.pass.cpp -----------------===//
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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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11 // Check that the pointer __cxa_allocate_exception returns is aligned to the
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12 // default alignment for the target architecture.
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13
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14 #include <cassert>
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15 #include <cstdint>
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16 #include <cxxabi.h>
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17 #include <type_traits>
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18 #include <__cxxabi_config.h>
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19
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20 struct S {
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21 int a[4];
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22 } __attribute__((aligned));
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23
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24 int main() {
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25 #if !defined(_LIBCXXABI_ARM_EHABI)
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26 void *p = __cxxabiv1::__cxa_allocate_exception(16);
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27 auto i = reinterpret_cast<uintptr_t>(p);
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28 auto a = std::alignment_of<S>::value;
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29 assert(i % a == 0);
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30 __cxxabiv1::__cxa_free_exception(p);
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31 #endif
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32 return 0;
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33 }
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