[Bug c++/49433] New: internal compiler error: in write_builtin_type, at cp/mangle.c:2167

[Bug c++/49433] New: internal compiler error: in write_builtin_type, at cp/mangle.c:2167

[philb at gnu dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49433

           Summary: internal compiler error: in write_builtin_type, at
                    cp/mangle.c:2167
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: philb@gnu.org


Created attachment 24543
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24543
testcase

Due to some stray CFLAGS I found myself compiling libstdc++ with -flto turned
on, which yielded:

$ arm-oe-linux-gnueabi-g++ -O2 -flto -g -fpermissive -std=gnu++0x atomic.ii -S
In file included from
/home/pb/oe/build-giga/tmp-eglibc/work/armv6-oe-linux-gnueabi/gcc-runtime-4.6.0-r4/gcc-4.6.0/build.arm-oe-linux-gnueabi.arm-oe-linux-gnueabi/libstdc++-v3/include/functional:59:0,
                 from
/home/pb/oe/build-giga/tmp-eglibc/work/armv6-oe-linux-gnueabi/gcc-runtime-4.6.0-r4/gcc-4.6.0/build.arm-oe-linux-gnueabi.arm-oe-linux-gnueabi/libstdc++-v3/include/mutex:43,
                 from
/home/pb/oe/build-giga/tmp-eglibc/work/armv6-oe-linux-gnueabi/gcc-runtime-4.6.0-r4/gcc-4.6.0/libstdc++-v3/src/atomic.cc:28:
/home/pb/oe/build-giga/tmp-eglibc/work/armv6-oe-linux-gnueabi/gcc-runtime-4.6.0-r4/gcc-4.6.0/build.arm-oe-linux-gnueabi.arm-oe-linux-gnueabi/libstdc++-v3/include/bits/functional_hash.h:
In instantiation of 'std::size_t std::hash<_Tp>::operator()(_Tp) const [with
_Tp = long double, std::size_t = unsigned int]':
/home/pb/oe/build-giga/tmp-eglibc/work/armv6-oe-linux-gnueabi/gcc-runtime-4.6.0-r4/gcc-4.6.0/libstdc++-v3/src/atomic.cc:122:1:
  instantiated from here
/home/pb/oe/build-giga/tmp-eglibc/work/armv6-oe-linux-gnueabi/gcc-runtime-4.6.0-r4/gcc-4.6.0/build.arm-oe-linux-gnueabi.arm-oe-linux-gnueabi/libstdc++-v3/include/bits/functional_hash.h:184:5:
internal compiler error: in write_builtin_type, at cp/mangle.c:2167
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
$

[Bug c++/49433] internal compiler error: in write_builtin_type, at cp/mangle.c:2167

[vash at vasiliyshlykov dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49433

Vasiliy <vash at vasiliyshlykov dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vash at vasiliyshlykov dot
                   |                            |org

--- Comment #1 from Vasiliy <vash at vasiliyshlykov dot org> 2011-09-23 06:11:44 UTC ---
Same result on PowerPC with gcc 4.6.1:
/usr/lib/gcc/powerpc-lynx-lynxos/4.6.1/../../../../powerpc-lynx-lynxos/include/boost/lexical_cast.hpp:
In instantiation of 'bool boost::detail::lexical_stream_limited_src<CharT,
Base, Traits>::operator<<(long double) [with CharT = char, Base =
std::basic_streambuf<char>, Traits = std::char_traits<char>]':
conversion.cpp:45:1:   instantiated from here
/usr/lib/gcc/powerpc-lynx-lynxos/4.6.1/../../../../powerpc-lynx-lynxos/include/boost/lexical_cast.hpp:971:21:
internal compiler error: in write_builtin_type, at cp/mangle.c:2167

This only appears with -O2 -flto and passes -Os -flto.

gcc -v:
Using built-in specs.
COLLECT_GCC=powerpc-lynx-lynxos-gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/powerpc-lynx-lynxos/4.6.1/lto-wrapper
Target: powerpc-lynx-lynxos
Configured with: ../src/configure --prefix=/usr --target=powerpc-lynx-lynxos
--disable-nls --enable-multilib --with-gnu-as --with-gnu-ld
--enable-languages=c,c++ --disable-libstdcxx-pch --enable-plugin
--disable-softfloat --with-tune=750 --with-system-zlib --enable-threads=posix
Thread model: lynx
gcc version 4.6.1 (GCC)

[Bug c++/49433] internal compiler error: in write_builtin_type, at cp/mangle.c:2167

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49433

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-09-23 10:00:10 UTC ---
I would say put a breakpoint on write_builtin_type and see what a heck is that
type!

[Bug c++/49433] internal compiler error: in write_builtin_type, at cp/mangle.c:2167

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49433

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
I'm pretty sure it's a Dup, otherwise, if the issue persists, please re-open,
thanks.

*** This bug has been marked as a duplicate of bug 51432 ***