| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: no-exceptions |
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| 10 | |
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| 11 | // This test checks that the compiler does not make incorrect assumptions |
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| 12 | // about the alignment of the exception (only in that specific case, of |
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| 13 | // course). |
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| 14 | // |
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| 15 | // There was a bug where Clang would emit a call to memset assuming a 16-byte |
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| 16 | // aligned exception even when back-deploying to older Darwin systems where |
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| 17 | // exceptions are 8-byte aligned, which caused a segfault on those systems. |
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| 18 | |
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| 19 | struct exception { |
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| 20 | exception() : x(0) { } |
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| 21 | exception(const exception&) = default; |
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| 22 | exception& operator=(const exception&) = default; |
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| 23 | virtual ~exception() { } |
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| 24 | int x; |
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| 25 | }; |
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| 26 | |
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| 27 | struct foo : exception { }; |
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| 28 | |
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| 29 | int main(int, char**) { |
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| 30 | try { |
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| 31 | throw foo(); |
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| 32 | } catch (...) { |
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| 33 | |
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| 34 | } |
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| 35 | return 0; |
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| 36 | } |
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| 37 | |
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