[Bug libstdc++/55126] New: Libstdc++-v3 fails to compile

["rbmj at verizon dot net" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55126

             Bug #: 55126
           Summary: Libstdc++-v3 fails to compile
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rbmj@verizon.net


Hello everyone,

libstdc++-v3 fails to compile, with the following error message:

In file included from
../../../../../gcc/libstdc++-v3/src/c++98/complex_io.cc:25:0:
/home/rbmj/build/powerpc-wrs-vxworks/libstdc++-v3/include/complex: In function
'std::basic_ostream<_CharT, _Traits>&
std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::complex<_Tp>&)
[with _Tp = float; _CharT = char; _Traits = std::char_traits<char>]':
/home/rbmj/build/powerpc-wrs-vxworks/libstdc++-v3/include/complex:529:5:
internal compiler error: Segmentation fault
     }
     ^
0xa582bf crash_signal
    ../../gcc/gcc/toplev.c:333
0xa43264 emit_case_dispatch_table
    ../../gcc/gcc/stmt.c:1919
0xa4a219 expand_sjlj_dispatch_table(rtx_def*, vec_t<tree_node*>*)
    ../../gcc/gcc/stmt.c:2292
0x81bde9 sjlj_emit_dispatch_table
    ../../gcc/gcc/except.c:1363
0x81bde9 sjlj_build_landing_pads
    ../../gcc/gcc/except.c:1420
0x81bde9 finish_eh_generation()
    ../../gcc/gcc/except.c:1454
0x784ef6 gimple_expand_cfg
    ../../gcc/gcc/cfgexpand.c:4600
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.
make[5]: *** [complex_io.lo] Error 1

This is a regression, as it successfully compiled with revision 191596, but
with 192956 has the above error message.

I wasn't sure whether to file this under libstdc++ or the c++ front end.

Build configuration:

../gcc/configure          --prefix=/usr          --target=powerpc-wrs-vxworks  
       --with-gnu-as          --with-gnu-ld          --with-headers         
--disable-shared          --disable-libssp          --disable-multilib         
--with-float=hard          --enable-languages=c,c++          --enable-libstdcxx
         --enable-threads=vxworks          --without-gconv         
--disable-libgomp          --disable-nls          --disable-libmudflap         
--with-cpu-PPC603          --disable-symvers