The following invalid code snippet triggers an ICE on mainline:
============================================================
template<int> struct A;
struct __attribute__((unused)) A<0<;
============================================================
bug.cc:3: error: template argument 1 is invalid
bug.cc:3: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in cp_parser_elaborated_type_specifier, at
cp/parser.c:10245
Please submit a full bug report, [etc.]
--
Summary: [4.2 regression] ICE on attribute for invalid template
Product: gcc
Version: 4.2.0
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=28269
