[Bug c++/47398] New: [4.5/4.6 Regression] tree check: accessed elt 10 of tree_vec with 9 elts in tsubst, at cp/pt.c:10500

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47398

           Summary: [4.5/4.6 Regression] tree check: accessed elt 10 of
                    tree_vec with 9 elts in tsubst, at cp/pt.c:10500
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: jakub@gcc.gnu.org


Created attachment 23063
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23063
rh670984.C

On the attached testcase g++ 4.5 and 4.6 ICE with:
rh670984.C:168:5: internal compiler error: tree check: accessed elt 10 of
tree_vec with 9 elts in tsubst, at cp/pt.c:10500
(different line number in 4.5 of course).
4.4 compiles it without errors.