https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67515
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
You can get the same segfault with clang++ e.g. on
struct A
{
int a;
A () {}
int foo () { return 1; }
virtual ~A () {}
};
alignas (A) char buf[sizeof (A)];
void foo (void *x)
{
A *y = (A *) x;
y->foo ();
}
int main ()
{
__builtin_memset (buf, '\x7f', sizeof 0);
foo (&buf);
}
(but as in this case it is really called on object not even started to be
constructed, there is no other workaround than to slow down the library).
