[Bug middle-end/46555] [10/11/12/13 Regression] PHI RTL expansion leads to CSiBE regression

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46555

--- Comment #17 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Looks like this was fixed in GCC 12:
  <bb 20> [local count: 344921666]:
  # _30 = PHI <-1(12), 0(17)>
  tbuf ={v} {CLOBBER(eol)};
  return _30;