[Bug c++/61040] New: internal compiler error: in gimplify_init_ctor_preeval, at gimplify.c:3320

[b.r.longbons at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61040

            Bug ID: 61040
           Summary: internal compiler error: in
                    gimplify_init_ctor_preeval, at gimplify.c:3320
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: b.r.longbons at gmail dot com

The following valid program ICEs with g++ 4.9.0.
Previous versions (4.6.4, 4.7.3, 4.8.2) compile it just fine.
Older versions did not implement constexpr.

// compile with -std=c++0x

struct VString
{
    VString();
};

struct IP4Address
{
    unsigned int _addr;
    constexpr IP4Address() : _addr{} {}
};

struct mmo_char_server
{
    VString name;
    IP4Address ip;
};

mmo_char_server& get_ref();

void parse_login(void)
{
    get_ref() = mmo_char_server{};
}