[Bug c++/33462] New: [4.1/4.2/4.3 regression] Broken diagnostic: 'va_arg_expr' not supported by dump_expr

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

The following invalid testcase triggers a broken diagnostic since GCC 3.3.1:

===================================
struct A {};

void foo()
{
  ++__builtin_va_arg(0, A);
}
===================================

bug.cc:5: error: no match for 'operator++' in '++#'va_arg_expr' not supported
by dump_expr#<expression error>'


-- 
           Summary: [4.1/4.2/4.3 regression] Broken diagnostic:
                    'va_arg_expr' not supported by dump_expr
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: diagnostic, monitored
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33462