The attached code (preprocessed cp/decl.c with a patch), causes an ice at -O2. I think it might have something to do with nested statement-expressions.
[EMAIL PROTECTED]:179>./cc1 -O2 bug.i -quiet <var_decl 0x40a96b54 __t>bug.i: In function 'start_preparsed_function': bug.i:20444: internal compiler error: unexpected node -- Summary: ICE Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: nathan at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18299