/home/bilbo/gnu-toolchain/gcc/ipa-bitwise-cp/stage1-build/./gcc/xgcc -B/home/bilbo/gnu-toolchain/gcc/ipa-bitwise-cp/stage1-build/./gcc/ -xc -S -c /dev/null -fself-test
cc1: internal compiler error: Segmentation fault
0xbe176f crash_signal
        ../../gcc/gcc/toplev.c:335
0x139947e cpp_string_location_reader::get_next()
        ../../gcc/libcpp/charset.c:2143
0x139947e _cpp_valid_ucn
        ../../gcc/libcpp/charset.c:1079
0x139d6fb convert_ucn
        ../../gcc/libcpp/charset.c:1175
0x139d6fb convert_escape
        ../../gcc/libcpp/charset.c:1409
0x139d6fb cpp_interpret_string_1
        ../../gcc/libcpp/charset.c:1643
0x139de3d cpp_interpret_string(cpp_reader*, cpp_string const*, unsigned long, cpp_string*, cpp_ttype)
        ../../gcc/libcpp/charset.c:1676
0x13950ab test_lexer_string_locations_ucn4
        ../../gcc/gcc/input.c:2386
0x13950ab selftest::input_c_tests()
        ../../gcc/gcc/input.c:3134
0x133073f selftest::run_tests()
        ../../gcc/gcc/selftest-run-tests.c:56
0xbe3002 toplev::run_self_tests()
        ../../gcc/gcc/toplev.c:2062
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Makefile:1898: recipe for target 's-selftest' failed
make[2]: *** [s-selftest] Error 1
rm gfortran.pod fsf-funding.pod gcov.pod gpl.pod cpp.pod gfdl.pod gcc.pod gcov-tool.pod
make[2]: Leaving directory '/home/bilbo/gnu-toolchain/gcc/ipa-bitwise-cp/stage1-build/gcc'
Makefile:4276: recipe for target 'all-gcc' failed
make[1]: *** [all-gcc] Error 2
make[1]: Leaving directory '/home/bilbo/gnu-toolchain/gcc/ipa-bitwise-cp/stage1-build'
Makefile:918: recipe for target 'all' failed
make: *** [all] Error 2