[Bug c++/49527] New: internal compiler error: in mangle_decl_string, at cp/mangle.c:3099

["plan9assembler at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49527

           Summary: internal compiler error: in mangle_decl_string, at
                    cp/mangle.c:3099
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: plan9assembler@gmail.com


using gcc 4.7.0 to compile PathScale EKOPath 4 Compiler Suite 
https://github.com/path64/compiler

cmake configuration:

cmake -DCMAKE_INSTALL_PREFIX=/usr/ -DPATH64_ENABLE_TARGETS=x86_64
-DPATH64_ENABLE_MATHLIBS=ON -DPSC_CRT_PATH_x86_64=/usr/lib64
-DPSC_DYNAMIC_LINKER_x86_64=/lib64/ld-linux-x86-64.so.2
-DPSC_LIBSUPCPP_PATH_x86_64=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/
-DPSC_LIBSTDCPP_PATH_x86_64=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/
-DPSC_LIBGCC_PATH_x86_64=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/
-DPSC_LIBGCC_EH_PATH_x86_64=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/
-DPSC_LIBGCC_S_PATH_x86_64=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/ ..

compile:
...
[ 18%] Built target be-static-x8664
[ 18%] Building CXX object
src/be/cg/CMakeFiles/cg-x8664.dir/x8664/cgtarget.cxx.o
In file included from
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/../../../../include/c++/4.7.0/ext/hash_map:61:0,
                 from /home/XXX/compiler/src/be/../common/com/strtab.h:136,
                 from /home/XXX/compiler/src/be/../common/com/symtab.h:65,
                 from /home/XXX/compiler/src/be/../common/com/stab.h:29,
                 from /home/XXX/compiler/src/be/com/data_layout.h:54,
                 from /home/XXX/compiler/src/be/cg/x8664/cgtarget.cxx:66:
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/../../../../include/c++/4.7.0/backward/backward_warning.h:33:2:
warning: #warning This file includes at least one deprecated or antiquated
header which may be removed without further notice at a future date. Please use
a non-deprecated interface with equivalent functionality instead. For a listing
of replacement headers and interfaces, consult the file backward_warning.h. To
disable this warning use -Wno-deprecated. [-Wcpp]
In file included from /home/XXX/compiler/src/be/com/opt_alias_mgr.h:71:0,
                 from /home/XXX/compiler/src/be/cg/x8664/cgtarget.cxx:71:
/home/XXX/compiler/src/be/com/cxx_template.h:340:52: internal compiler error:
in mangle_decl_string, at cp/mangle.c:3099
Please submit a full bug report,
with preprocessed source if appropriate.

PS: sorry for no detail information.