With today's mainline I get
stage1/xgcc -Bstage1/ -B/export/users/lucier/local/gcc-mainline/sparc-sun-solaris2.9/bin/ -c -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros -Wold-style-definition -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/../include -I./../intl -I../../gcc/../libcpp/include -I/pkgs/gmp-4.1.4/include -I/pkgs/gmp-4.1.4/include ../../gcc/reorg.c -o reorg.o
../../gcc/reorg.c: In function 'get_jump_flags':
../../gcc/reorg.c:901: internal compiler error: in invert_jump_1, at jump.c:1711
Please submit a full bug report,
with preprocessed source if appropriate.
And so it begins ...
Brad