Louis Dionne | e92a9c9 | 2019-05-17 14:53:29 +0000 | [diff] [blame] | 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 | |
Louis Dionne | 8c61114 | 2020-04-17 10:29:15 -0400 | [diff] [blame] | 9 | // UNSUPPORTED: no-exceptions |
Louis Dionne | e92a9c9 | 2019-05-17 14:53:29 +0000 | [diff] [blame] | 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) { } |
Igor Zhukov | 7024892 | 2023-09-08 11:15:53 -0400 | [diff] [blame] | 21 | exception(const exception&) = default; |
| 22 | exception& operator=(const exception&) = default; |
Louis Dionne | e92a9c9 | 2019-05-17 14:53:29 +0000 | [diff] [blame] | 23 | virtual ~exception() { } |
| 24 | int x; |
| 25 | }; |
| 26 | |
| 27 | struct foo : exception { }; |
| 28 | |
Louis Dionne | 504bc07 | 2020-10-08 13:36:33 -0400 | [diff] [blame] | 29 | int main(int, char**) { |
Louis Dionne | e92a9c9 | 2019-05-17 14:53:29 +0000 | [diff] [blame] | 30 | try { |
| 31 | throw foo(); |
| 32 | } catch (...) { |
| 33 | |
| 34 | } |
| 35 | return 0; |
| 36 | } |