[Bug other/63407] New: xsdcxx built with LTO aborts on xsd files of libkolabxml - when LTO is disabled problem is gone

["nheghathivhistha at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63407

            Bug ID: 63407
           Summary: xsdcxx built with LTO aborts on xsd files of
                    libkolabxml - when LTO is disabled problem is gone
           Product: gcc
           Version: 4.9.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nheghathivhistha at gmail dot com

Gentoo dev-cpp/xsd-3.3.0-r3 compiled (without troubles) with -flto=4
-fuse-linker-plugin aborts itself during processing of
net-libs/libkolabxml-1.0.1 xsd files with message:
"terminate called after throwing an instance of 'Cult::MM::Absent'".

When LTO is not used to compile xsdcxx program problem is not present.

-rwxr-xr-x 1 root root 3911616 Sep 29 15:00 /usr/bin/xsdcxx
-rwxr-xr-x 1 root root 4527928 Sep 29 14:15 /usr/bin/xsdcxx.nolto

gcc -v
Using built-in specs.
COLLECT_GCC=/usr/x86_64-pc-linux-gnu/gcc-bin/4.9.2-alpha20140928/gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.9.2-alpha20140928/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.9.2_alpha20140928/work/gcc-4.9-20140928/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.9.2-alpha20140928
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2-alpha20140928/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.2-alpha20140928
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.2-alpha20140928/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.2-alpha20140928/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2-alpha20140928/include/g++-v4
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/4.9.2-alpha20140928/python
--enable-languages=c,c++,go,objc,obj-c++,fortran,ada --enable-obsolete
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--enable-checking=release --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo 4.9.2_alpha20140928' --enable-libstdcxx-time
--enable-shared --enable-threads=posix --enable-__cxa_atexit
--enable-clocale=gnu --enable-multilib --disable-altivec --disable-fixed-point
--enable-targets=all --enable-libgomp --enable-lto --with-cloog
--disable-isl-version-check
Thread model: posix
gcc version 4.9.2-alpha20140928 20140929 (prerelease) [gcc-4_9-branch revision
215679] (Gentoo 4.9.2_alpha20140928)

C(XX)FLAGS "-flto=4 -fuse-linker-plugin -O2 -g -pipe -march=core2 -mtune=core2"

I am going to try version 5 from svn.
Should I post disassemble diff output or how to continue please? I not enabled
static libraries on my system so upload of binaries itself will be problem.