[Bug c++/19764] New: [3.3/3.4 regression] ICE on explicit instantiation of a non-template destructor

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

The following invalid code snippet causes an ICE in gcc 3.3.x, and 3.4.[34]:

======================================
struct A;
template A<>::~A();
======================================

The error message on the 3.4 branch is:

bug.cc:2: error: `A' is not a template
bug.cc:2: error: expected id-expression before '~' token
bug.cc:2: error: abstract declarator `A' used as declaration
bug.cc:2: internal compiler error: tree check: expected class 'd', have 'x'
(error_mark) in do_decl_instantiation, at cp/pt.c:10668
Please submit a full bug report, [etc.]

We did not ICE in gcc 3.2.x.

-- 
           Summary: [3.3/3.4 regression] ICE on explicit instantiation of a
                    non-template destructor
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19764