I came across the attached ICE while trying to reduce a different problem (but using the wrong test for a build failure).
Crash happens with all optimization levels (and none). -- Summary: ICE in instantiate_decl Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rearnsha at gcc dot gnu dot org GCC target triplet: x86_64-none-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44737