[Bug rtl-optimization/22208] New: [4.0/4.1 Regression] flag_rename_registers is not enabled at -O3 or above

[pinskia at gcc dot gnu dot org]

We should renable the this flag at least at -O3 and above.  See PR 15023 for why it was disabled, every 
problem except for the compiler time issue was a latent target bug.

-- 
           Summary: [4.0/4.1 Regression] flag_rename_registers is not
                    enabled at -O3 or above
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 BugsThisDependsOn: 15023


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22208