1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 // The Itanium ABI requires that _Unwind_Exception objects are "double-word 11 // aligned". 12 13 #include <unwind.h> 14 15 // EHABI : 8-byte aligned 16 // itanium: largest supported alignment for the system 17 #if defined(_LIBUNWIND_ARM_EHABI) 18 static_assert(alignof(_Unwind_Control_Block) == 8, 19 "_Unwind_Control_Block must be double-word aligned"); 20 #else 21 struct MaxAligned {} __attribute__((__aligned__)); 22 static_assert(alignof(_Unwind_Exception) == alignof(MaxAligned), 23 "_Unwind_Exception must be maximally aligned"); 24 #endif 25 main()26int main() 27 { 28 } 29