The testcase I'm going to attach ICEs in compute_attic, with checking enabled num_iterations reaches 500, without checking enabled it is OOM killed after it eats lots of memory. The .i file is from delta, so ignore the warnings, they weren't in the original source.
-- Summary: [4.4 Regression] ICE in compute_attic Product: gcc Version: 4.4.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jakub at gcc dot gnu dot org GCC target triplet: i386-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39204