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[Steve Langasek <steve.langasek@xxxxxxxxxxxxx>]

The verification of the Stable Release Update for gcc-4.8 has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1395019

Title:
  [4.8/4.9 Regression] Infinite loop generated with >=O2

Status in The GNU Compiler Collection:
  Fix Released
Status in gcc-4.8 package in Ubuntu:
  Fix Released

Bug description:
  After some conditional blocks, it's possible that an infinite loop is
  generated.

  See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59358

  This problem was fixed back in December 2013 in the 4.8 branch as well
  as the trunk branch.  However, the trusty package ended up without the
  fix.

  This is the patch that is missing:
  https://gcc.gnu.org/viewcvs/gcc/branches/gcc-4_8-branch/gcc/tree-vrp.c?view=patch&r1=205608&r2=205607&pathrev=205608

  This has already affected a separate package, that needed to workaround the problem:
  https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1347147

  And is now causing issues for users that run into this problem as
  well.

  Please apply the patch to the gcc-4.8 version shipped on trusty and on
  utopic.

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