[Bug tree-optimization/53128] New: [4.8 Regression] Compiler produces infinite loop on regular O2

[izamyatin at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53128

             Bug #: 53128
           Summary: [4.8 Regression] Compiler produces infinite loop on
                    regular O2
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: izamyatin@gmail.com
            Target: x86-64


Created attachment 27247
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27247
Testcase

After the fix for PR53031 (revision 186592) compiler at O2 generates infinite
loop for the attached testcase attached.

Rev 186591 generates normal code...