[Bug c++/128209] [15/16/17 Regression] valgrind error in vn_is_backedge(edge_def*, void*) (tree-ssa-sccvn.cc:4103)

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128209

--- Comment #3 from David Binderman <dcb314 at hotmail dot com> ---
Probably a bit late, but here are the results of the reduction:

int _M_end_of_storage, func2_j, _M_swap_data___x_0;
void func2() {
  while (func2_j)
    for (int k = 0; k < 10; k++)
      _M_end_of_storage = _M_swap_data___x_0;
}
main() {}