from the upstream report:--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-24 14:53:29 UTC ---
> stack_init computes &pari_tree - &s_node which is undefined, stack_alloc > then re-computes one via stack_base. That's broken as well. > > Not sure if this eventually causes the issue, but certainly the code is > full of C implementation details that you can't capture in standard C.