[Bug target/54246] New: Bytemark FOURIER 54% slower in X32 chroot

[wbrana at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54246

             Bug #: 54246
           Summary: Bytemark FOURIER 54% slower in X32 chroot
    Classification: Unclassified
           Product: gcc
           Version: 4.7.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: wbr...@gmail.com


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

compiled on 64-bit system with glibc 2.14.1 and run in X32 chroot
FOURIER             :           36275  :      41.26  :      23.17
compiled in X32 chroot with glibc 2.16 and run in X32 chroot
FOURIER             :           16574  :      18.85  :      10.59
both were compiled with same CFLAGS
-static -m64 -ggdb -Wall -O3 -funroll-loops -g0 -march=core2 -mfpmath=sse
-fomit-frame-pointer -ffast-math -mssse3 -fno-PIE -fno-exceptions
-fno-stack-protector