[Bug middle-end/56301] New: [4.7 Regression] wrong code with the fix for PR53844

[doko at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56301

             Bug #: 56301
           Summary: [4.7 Regression] wrong code with the fix for PR53844
    Classification: Unclassified
           Product: gcc
           Version: 4.7.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: doko@gcc.gnu.org


works with 4.6 branch, 4.7.2 and the trunk. introduced in r195708 by the fix
for PR53844.

I don't have a reduced testcase yet. the unreduced test case is that the
upstart build in Ubuntu raring hangs in the testsuite with:

  Testing job_deserialise() ptrace handling
  BAD: wrong value for job->goal, expected 1 got 0
   at tests/test_job.c:7331 (deserialise_ptrace_next).

still trying to isolate the failure.

afaics, it is not architecture specific.

Even if backports are tested together, it would help if independent patches
could be committed separately to the branches.