[Bug bootstrap/72823] New: [7 Regression] r239175 causes ppc64le bootstrap failure

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72823

            Bug ID: 72823
           Summary: [7 Regression] r239175 causes ppc64le bootstrap
                    failure
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: dmalcolm at gcc dot gnu.org
  Target Milestone: ---
              Host: powerpc64le-unknown-linux-gnu
            Target: powerpc64le-unknown-linux-gnu
             Build: powerpc64le-unknown-linux-gnu

trippels@gcc2-power8 gcc_build_dir % ../gcc/configure
--enable-gnu-indirect-function --disable-libsanitizer
--enable-valgrind-annotations --with-cpu=power8 --disable-bootstrap
--disable-libstdcxx-pch --disable-libvtv --disable-libitm --disable-libcilkrts
--disable-libssp --disable-libgomp --disable-werror --disable-multilib
--enable-languages=c,c++

trippels@gcc2-power8 gcc_build_dir % make -j60

...
/home/trippels/gcc_build_dir/./gcc/xgcc -B/home/trippels/gcc_build_dir/./gcc/
-xc -S -c /dev/null -fself-test
cc1: internal compiler error: Segmentation fault
0x1088b293 crash_signal
        ../../gcc/gcc/toplev.c:335
0x1115c694 cpp_string_location_reader::get_next()
        ../../gcc/libcpp/charset.c:2143
0x1115c694 _cpp_valid_ucn
        ../../gcc/libcpp/charset.c:1079
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