[Bug c++/51348] New: [c++0x] ICE in finish_class_member_access_expr with bogus(?) enum class use

[luto at mit dot edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51348

             Bug #: 51348
           Summary: [c++0x] ICE in finish_class_member_access_expr with
                    bogus(?) enum class use
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: l...@mit.edu


I haven't checked whether this is legal C++, but it certainly looks fishy:

struct A
{
  enum class EC {
    VAL,
  };
};

int main()
{
  A a;
  a.EC::VAL;
}

An old-ish build from trunk (g++-trunk (GCC) 4.7.0 20111006 (experimental))
says:
test_ice.cc: In function ‘int main()’:
test_ice.cc:11:9: internal compiler error: in finish_class_member_access_expr,
at cp/typeck.c:2555

Fedora 16's gcc (g++ (GCC) 4.6.2 20111027 (Red Hat 4.6.2-1)) says:
test_ice.cc: In function ‘int main()’:
test_ice.cc:11:9: internal compiler error: in finish_class_member_access_expr,
at cp/typeck.c:2546

In both cases, I've compiled with g++ -c -std=c++0x.