[Bug tree-optimization/20496] "-1" is inconsistently printed in tree dumps

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=20496

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Oh the TREE_OVERFLOW part was fixed much earlier than that though.