[Bug tree-optimization/110942] [14 Regression] Dead Code Elimination Regression at -O3 since r14-1165-g257c2be7ff8

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110942

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2023-08-16
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
The problem seems like missing jump threading:
  <bb 9> [local count: 114235120]:
  # j_4 = PHI <j_31(11), 6(2)>
  if (j_4 <= 4)
    goto <bb 3>; [84.84%]
  else
    goto <bb 10>; [15.16%]