[Bug middle-end/56705] 4.8-20130319 misdiagnoses initialized var (regression from 4.7.2)

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56705



--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-03-24 
08:15:48 UTC ---

Looks like a missing jump threading which is causing this warning to show up:

  <bb 24>:

  # _48 = PHI <0(28), prephitmp_80(31), 0(23)>

  # value_89 = PHI <value_84(D)(28), value_93(31), value_84(D)(23)>



  <bb 25>:

  # _16 = PHI <prephitmp_107(30), _48(24)>

  # value_85 = PHI <value_45(30), value_89(24)>

  if (_16 != 0)

    goto <bb 27>;

  else

    goto <bb 26>;



  <bb 26>:



  <bb 27>:

  # _1 = PHI <value_85(25), 0B(26)>

  return _1;