[Bug rtl-optimization/55278] New: Botan performance regressions apparently due to LRA

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55278

             Bug #: 55278
           Summary: Botan performance regressions apparently due to LRA
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hubicka@gcc.gnu.org


Botan regressed significantly around October 23-25 when LRA was merged as can
be seen http://gcc.opensuse.org/c++bench/botan/botan-summary.txt-1-0.html
Those are all quite straighforward internal loops so it may be easy enough to
analyze what is going wrong.