[Bug optimization/12304] New: -fnew-ra and Pentium 3

[peorth at artificial dot ath dot cx]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12304

           Summary: -fnew-ra and Pentium 3
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: peorth at artificial dot ath dot cx
                CC: gcc-bugs at gcc dot gnu dot org

When running with -march=pentium3 -msse -mmx -fnew-ra, I've found it will produce non-P3 
compatible instructions.
Unfortunately, I don't have direct output of this myself, as it nearly rendered my system inoperable.
This is on any general code, as far as I've been able to tell.
Here are the compiler version readout.
Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.1/specs
Configured with: /var/tmp/portage/gcc-3.3.1-r2/work/gcc-3.3.1/configure --prefix=/usr 
--bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.3 --includedir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.
1/include --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3 
--mandir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3/man 
--infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3/info --enable-shared --host=i686-pc-linux-gnu 
--target=i686-pc-linux-gnu --with-system-zlib --enable-languages=c,c++,f77,objc,java 
--enable-threads=posix --enable-long-long --disable-checking --enable-cstdio=stdio 
--enable-clocale=generic --enable-__cxa_atexit --enable-version-specific-runtime-libs 
--with-gxx-include-dir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.1/include/g++-v3 
--with-local-prefix=/usr/local --enable-shared --enable-nls --without-included-gettext 
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib --enable-interpreter 
--enable-java-awt=xlib --with-x --disable-multilib
Thread model: posix
gcc version 3.3.1 20030815 (Gentoo Linux 3.3.1-r2, propolice)