[Bug tree-optimization/54077] New: Bytemark FP EMULATION 44% slower than with clang

[wbrana at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54077

             Bug #: 54077
           Summary: Bytemark FP EMULATION 44% slower than with clang
    Classification: Unclassified
           Product: gcc
           Version: 4.7.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: wbr...@gmail.com


http://www.tux.org/~mayer/linux/nbench-byte-2.2.3.tar.gz

clang
FP EMULATION        :          405.92  :     194.78  :      44.95
gcc
FP EMULATION        :          227.32  :     109.08  :      25.17

CFLAGS = -s -Wall -O3 -g0 -march=core2 -fomit-frame-pointer -funroll-loops
-ffast-math -mssse3 -fno-PIE -fno-exceptions -fno-stack-protector