[Bug c/117291] Simple but large test case uses up over 8M of stack and hits SEGV

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117291

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
You could possibility change this function to use a worklist instead. But I am
not sure having a tree depth this large is in normal code.