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57b08b0944
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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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: libcxxabi-no-exceptions
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// UNSUPPORTED: c++98, c++03
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// The system unwind.h on OS X provides an incorrectly aligned _Unwind_Exception
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// type. That causes these tests to fail. This XFAIL is my best attempt at
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// working around this failure.
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// XFAIL: darwin && libcxxabi-has-system-unwinder
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// Test that the address of the exception object is properly aligned as required
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// by the relevant ABI
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#include <cstdint>
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#include <cassert>
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#include <__cxxabi_config.h>
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#include <unwind.h>
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struct __attribute__((aligned)) AlignedType {};
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// EHABI : 8-byte aligned
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// Itanium: Largest supported alignment for the system
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#if defined(_LIBCXXABI_ARM_EHABI)
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# define EXPECTED_ALIGNMENT 8
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#else
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# define EXPECTED_ALIGNMENT alignof(AlignedType)
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#endif
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static_assert(alignof(_Unwind_Exception) == EXPECTED_ALIGNMENT,
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"_Unwind_Exception is incorrectly aligned. This test is expected to fail");
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struct MinAligned { };
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static_assert(alignof(MinAligned) == 1 && sizeof(MinAligned) == 1, "");
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int main() {
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for (int i=0; i < 10; ++i) {
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try {
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throw MinAligned{};
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} catch (MinAligned const& ref) {
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assert(reinterpret_cast<uintptr_t>(&ref) % EXPECTED_ALIGNMENT == 0);
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}
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}
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}
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