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 {
20     exception() : x(0) { }
21     virtual ~exception() { }
22     int x;
23 };
24 
25 struct foo : exception { };
26 
27 int main() {
28     try {
29       throw foo();
30     } catch (...) {
31 
32     }
33     return 0;
34 }
35