[Bug rtl-optimization/21507] New: BYTEmark floating-point emulation: Regression with -O3

["jbucata at tulsaconnect dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Another performance bug in the same vein as bug 21485.  The BYTEmark floating
point emulation benchmark sees a regression 3.4.3 -> 4.0.0 with profiled
optimization.

Relevant flags are: -static -O3 -march=athlon-xp -fomit-frame-pointer
-fprofile-{generate,use}

I took the advice given last time; this one doesn't output any numbers and runs
a fixed number of iterations instead.  Time it to see the difference in performance.

-- 
           Summary: BYTEmark floating-point emulation: Regression with -O3
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jbucata at tulsaconnect dot com
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21507