1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: no-exceptions
10
11 // This test checks that the compiler does not make incorrect assumptions
12 // about the alignment of the exception (only in that specific case, of
13 // course).
14 //
15 // There was a bug where Clang would emit a call to memset assuming a 16-byte
16 // aligned exception even when back-deploying to older Darwin systems where
17 // exceptions are 8-byte aligned, which caused a segfault on those systems.
18
19 struct exception {
exceptionexception20 exception() : x(0) { }
21 exception(const exception&) = default;
22 exception& operator=(const exception&) = default;
~exceptionexception23 virtual ~exception() { }
24 int x;
25 };
26
27 struct foo : exception { };
28
main(int,char **)29 int main(int, char**) {
30 try {
31 throw foo();
32 } catch (...) {
33
34 }
35 return 0;
36 }
37