The bitfield-1.mm test case fails for me with 4.3 on ia64 with:
internal compiler error: tree check: expected tree that contains 'decl with
RTL' structure, have 'field_decl' in assemble_external_real, at varasm.c:2225
--
Summary: [4.3 Regression] expected tree that contains 'decl with
RTL' structure, have 'field_decl' in
assemble_external_real, at varasm.c:2225
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: objc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tbm at cyrius dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31032