[Bug middle-end/109609] [12/13/14 Regression] tail call for function even when passing a ptr which references a local array still

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109609

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note, changing `ptr < buf` to `ptr != buf` still invokes the wrong code being
generated.