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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/56705] 4.8-20130319 misdiagnoses initialized var (regression from 4.7.2)
Date: Sun, 24 Mar 2013 08:15:00 -0000
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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;