[Bug middle-end/87268] Missed optimization for a tailcall

[no...@turm-lahnstein.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87268

--- Comment #3 from ead <no...@turm-lahnstein.de> ---
Sorry, I only saw that clang gives me what I expect... and overlooked the
warning.

  call_doit should return void and not int.