[Bug c++/34755] New: [4.3 regression] ICE with invalid argument in variadic template function

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

The following invalid code snippet triggers an ICE on mainline:

================================================================
template<typename> struct A {};

template<template<typename> class... T> void foo(T<int>) {}

template void foo<A>(A<int>);
================================================================

bug.cc:3: error: parameter packs not expanded with `...':
bug.cc:3: note:         'template<class> class T'
bug.cc:5: internal compiler error: tree check: expected template_type_parm or
template_template_parm or bound_template_template_parm, have error_mark in
fn_type_unification, at cp/pt.c:11623
Please submit a full bug report, [etc.]

The ICE appeared between 2007-10-13 and 2007-11-13.
Maybe related to PR 34754.


-- 
           Summary: [4.3 regression] ICE with invalid argument in variadic
                    template function
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, 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=34755