This error only seems to occur when "-O2 -march=k6-2 -ftracer" are used together. Removing -ftracer causes the error to go away. This problem does not seem to exist in the GCC4.0 branch.
i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include -O20 -ffast-math -D_REENTRANT -fsigned-char -march=k6-2 -ftracer -O2 -mno-sse2 -fPIC -DUSE_MEMORY_H -MT psy.lo -MD -MP -MF .deps/psy.Tpo -c psy.c -fPIC -DPIC -o .libs/psy.o -save-temps psy.s: Assembler messages: psy.s:6581: Error: value of ffffffffffffff7f too large for field of 1 bytes at 0000000000000428 gcc -v Reading specs from /usr/lib/gcc/i686-pc-linux-gnu/3.4.3-20050110/specs Configured with: /var/tmp/portage/gcc-3.4.3.20050110-r1/work/gcc-3.4.3/configure --enable-version-specific-runtime-libs --prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.4.3-20050110 --includedir=/usr/lib/gcc/i686-pc-linux-gnu/3.4.3-20050110/include --datadir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.3-20050110 --mandir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.3-20050110/man --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.3-20050110/info --with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/3.4.3-20050110/include/g++-v3 --host=i686-pc-linux-gnu --disable-altivec --enable-nls --without-included-gettext --enable-__cxa_atexit --disable-sjlj-exceptions --enable-clocale=gnu --with-system-zlib --disable-checking --disable-werror --disable-libunwind-exceptions --disable-multilib --disable-libgcj --enable-languages=c,c++ --enable-shared --enable-threads=posix Thread model: posix gcc version 3.4.3-20050110 (Gentoo Linux 3.4.3.20050110-r1, ssp-3.4.3.20050110-0, pie-8.7.7) -- Summary: 3.4 assembler error - value too large for field on k6-2 Product: gcc Version: 3.4.4 Status: UNCONFIRMED Severity: normal Priority: P2 Component: rtl-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: halcy0n at gentoo dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20653