[Bug go/98504] New: [11 Regression] bootstrap broken in libgo on ia64-linux-gnu

[doko at debian dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98504

            Bug ID: 98504
           Summary: [11 Regression] bootstrap broken in libgo on
                    ia64-linux-gnu
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: doko at debian dot org
                CC: cmang at google dot com
  Target Milestone: ---

seen with trunk 20210102 on ia64-linux-gnu:

go1: internal compiler error: Segmentation fault
0x400000000126cfcf crash_signal
        ../../src/gcc/toplev.c:327
0x4000000002de14df std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::substr(unsigned long, unsigned long) const
       
/<<PKGBUILDDIR>>/build/ia64-linux-gnu/libstdc++-v3/include/bits/basic_string.h:907
0x400000000036e3ff Gogo::special_name_pos(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&)
        ../../src/gcc/go/gofrontend/names.cc:1193
0x400000000023783f should_export
        ../../src/gcc/go/gofrontend/export.cc:464
0x400000000023c99f Export::export_globals(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >
const&, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&, std::map<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >, Package*,
std::less<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const, Package*> > > const&,
std::map<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >, Package*, std::less<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const, Package*> > > const&,
std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >
const&, Import_init_set const&, Bindings const*,
std::unordered_set<Named_object*, std::hash<Named_object*>,
std::equal_to<Named_object*>, std::allocator<Named_object*> >*)
        ../../src/gcc/go/gofrontend/export.cc:573
0x40000000003ae35f Gogo::do_exports()
       
/<<PKGBUILDDIR>>/build/prev-ia64-linux-gnu/libstdc++-v3/include/bits/basic_string.h:907
0x400000000035dbef Gogo::do_exports()
        ../../src/gcc/go/gofrontend/gogo.cc:5201
0x400000000035dbef go_parse_input_files(char const**, unsigned int, bool, bool)
        ../../src/gcc/go/gofrontend/go.cc:157
0x40000000002f4aff go_langhook_parse_file
        ../../src/gcc/go/go-lang.c:352
Please submit a full bug report,
with preprocessed source if appropriate.

configured with:
         --enable-languages=c,c++,go,d,fortran,objc,obj-c++
         --prefix=/usr/lib/gcc-snapshot
         --with-gcc-major-version-only
         --program-prefix=
         --enable-shared
         --enable-linker-build-id
         --disable-nls
         --enable-clocale=gnu
         --enable-libstdcxx-debug
         --enable-libstdcxx-time=yes
         --with-default-libstdcxx-abi=new
         --enable-gnu-unique-object
         --disable-libssp
         --disable-libitm
         --disable-libsanitizer
         --enable-plugin
         --with-system-zlib
         --disable-libphobos
         --enable-objc-gc=auto
         --enable-multiarch
         --disable-werror
         --with-system-libunwind
         --enable-checking=yes
         --build=ia64-linux-gnu
         --host=ia64-linux-gnu
         --target=ia64-linux-gnu
         --with-build-config=bootstrap-lto-lean
         --enable-link-serialization=1