Same thing here on Darwin: /opt/gcc/darwin_buildw/./prev-gcc/xgcc -B/opt/gcc/darwin_buildw/./prev-gcc/ -B/opt/gcc/gcc4.3w/powerpc-apple-darwin8/bin/ -c -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-4.3-work/gcc -I../../gcc-4.3-work/gcc/. -I../../gcc-4.3-work/gcc/../include -I../../gcc-4.3-work/gcc/../libcpp/include -I/sw/include -I../../gcc-4.3-work/gcc/../libdecnumber -I../../gcc-4.3-work/gcc/../libdecnumber/dpd -I../libdecnumber -I/sw/include ../../gcc-4.3-work/gcc/tree-ssa-structalias.c -o tree-ssa-structalias.o ../../gcc-4.3-work/gcc/tree-ssa-structalias.c: In function 'get_constraint_exp_from_ssa_var': ../../gcc-4.3-work/gcc/tree-ssa-structalias.c:5627: internal compiler error: tree check: expected ssa_name, have result_decl in eliminate_tail_call, at tree-tailcall.c:803
This is on the third pass (it compiles fine once with gcc and once with /opt/gcc/darwin_buildw/./prev-gcc/xgcc). I was using a simple make for revision 128092 after a successful build of revision 12806x. Dominique