[Bug tree-optimization/63660] -Wmaybe-uninitialized false positive (uninit pass limits)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63660

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |msebor at gcc dot gnu.org
      Known to fail|4.8.3, 4.9.2, 5.0           |10.2.0, 11.0, 4.8.4, 4.9.4,
                   |                            |5.5.0, 6.4.0, 7.2.0, 8.3.0,
                   |                            |9.1.0
   Last reconfirmed|2014-10-28 00:00:00         |2021-3-30

--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
Reconfirmed with GCC 11.  The limits don't come into play here.  There is an
uninitialized use in a PHI in the IL:

  <bb 22> [local count: 1073741824]:
  # xj_35 = PHI <xj_45(D)(53), xj_24(21)>
  # .MEM_55 = PHI <.MEM_54(53), .MEM_77(21)>
  if (m_3 > 63)
    goto <bb 54>; [51.12%]
  else
    goto <bb 23>; [48.88%]
  ...
  <bb 42> [local count: 262422500]:
  # .MEM_88 = VDEF <.MEM_64>
  x_25->j = xj_35;