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