[Bug c++/38795] New: [4.3/4.4 regression] ICE with reinterpret_cast and variadic templates

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

The following invalid code snippet is triggers an ICE since GCC 4.3.0:

========================================
template<typename... T> int foo(int i)
{
  return *reinterpret_cast<T*>(i);
}

void bar(int i)
{
  foo<int>(i);
}
========================================

bug.cc: In function 'int foo(int) [with T = int]':
bug.cc:8:   instantiated from here
bug.cc:3: internal compiler error: tree check: expected record_type or
union_type or qual_union_type, have template_type_parm in lookup_conversions,
at cp/search.c:2459
Please submit a full bug report, [etc.]

It's a regression because the code crashes even without -std=gnu++0x.


-- 
           Summary: [4.3/4.4 regression] ICE with reinterpret_cast and
                    variadic templates
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, 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=38795