[Bug c++/46289] New: [4.6 regression] ICE in build_constexpr_constructor_member_initializers, at cp/semantics.c:5513

["ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46289

           Summary: [4.6 regression] ICE in
                    build_constexpr_constructor_member_initializers, at
                    cp/semantics.c:5513
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ro@gcc.gnu.org
              Host: sparc-sun-solaris2.10
            Target: sparc-sun-solaris2.10
             Build: sparc-sun-solaris2.10


Created attachment 22252
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22252
preprocessed input

As of rev. 166242, building libstdc++ fails on Solaris 10/SPARC:

$ /var/gcc/regression/trunk/10-gcc-gas/build/./gcc/xgcc -shared-libgcc
-B/var/gcc/regression/trunk/10-gcc-gas/build/./gcc -nostdinc++
-L/var/gcc/regression/trunk/10-gcc-gas/build/sparc-sun-solaris2.10/libstdc++-v3/src
-L/var/gcc/regression/trunk/10-gcc-gas/build/sparc-sun-solaris2.10/libstdc++-v3/src/.libs
-B/vol/gcc/sparc-sun-solaris2.10/bin/ -B/vol/gcc/sparc-sun-solaris2.10/lib/
-isystem /vol/gcc/sparc-sun-solaris2.10/include -isystem
/vol/gcc/sparc-sun-solaris2.10/sys-include    -x c++-header -nostdinc++ -g -O2
-I/var/gcc/regression/trunk/10-gcc-gas/build/sparc-sun-solaris2.10/libstdc++-v3/include/sparc-sun-solaris2.10
-I/var/gcc/regression/trunk/10-gcc-gas/build/sparc-sun-solaris2.10/libstdc++-v3/include
-I/vol/gcc/src/hg/trunk/local/libstdc++-v3/libsupc++ -O2 -g -std=gnu++0x
/vol/gcc/src/hg/trunk/local/libstdc++-v3/include/precompiled/stdc++.h -o
sparc-sun-solaris2.10/bits/stdc++.h.gch/O2ggnu++0x.gch
In file included from
/var/gcc/regression/trunk/10-gcc-gas/build/sparc-sun-solaris2.10/libstdc++-v3/include/condition_variable:39:0,
                 from
/vol/gcc/src/hg/trunk/local/libstdc++-v3/include/precompiled/stdc++.h:101:
/var/gcc/regression/trunk/10-gcc-gas/build/sparc-sun-solaris2.10/libstdc++-v3/include/mutex:
In constructor 'constexpr std::mutex::mutex()':
/var/gcc/regression/trunk/10-gcc-gas/build/sparc-sun-solaris2.10/libstdc++-v3/include/mutex:71:54:
error: could not convert '{{0, 0, 0, 0, 19800}, {{{0}}}, 0}' to
'std::mutex::__native_type'
/var/gcc/regression/trunk/10-gcc-gas/build/sparc-sun-solaris2.10/libstdc++-v3/include/mutex:71:58:
internal compiler error: in build_constexpr_constructor_member_initializers, at
cp/semantics.c:5513

$ cc1plus -fpreprocessed stdc++.ii -quiet -dumpbase stdc++.h -mcpu=v9 -auxbase
stdc++ -g -g -O2 -O2 -std=gnu++0x -version -o stdc++.s --output-pch=
sparc-sun-solaris2.10/bits/stdc++.h.gch/O2ggnu++0x.gch