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f8774f1d73
It seems that GCC interprets `__attribute__((__aligned__))` as 8-byte alignment on ARM, but clang does not. Explicitly specify the double-word alignment value to ensure that the structure is properly aligned. llvm-svn: 311574
30 lines
925 B
C++
30 lines
925 B
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// The Itanium ABI requires that _Unwind_Exception objects are "double-word
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// aligned".
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#include <unwind.h>
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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(_LIBUNWIND_ARM_EHABI)
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static_assert(alignof(_Unwind_Control_Block) == 8,
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"_Unwind_Control_Block must be double-word aligned");
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#else
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struct MaxAligned {} __attribute__((__aligned__));
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static_assert(alignof(_Unwind_Exception) == alignof(MaxAligned),
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"_Unwind_Exception must be maximally aligned");
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#endif
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int main()
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{
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}
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