llvm-project/libcxxabi/test/exception_object_alignment....

35 lines
997 B
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: no-exceptions
// This test checks that the compiler does not make incorrect assumptions
// about the alignment of the exception (only in that specific case, of
// course).
//
// There was a bug where Clang would emit a call to memset assuming a 16-byte
// aligned exception even when back-deploying to older Darwin systems where
// exceptions are 8-byte aligned, which caused a segfault on those systems.
struct exception {
exception() : x(0) { }
virtual ~exception() { }
int x;
};
struct foo : exception { };
int main() {
try {
throw foo();
} catch (...) {
}
return 0;
}