The code is taken from the multimedia package pd and reduced. It may be reproduced with # gcc -c -O2 d.i d.i: In function 'osc_perform': d.i:35: internal compiler error: in schedule_insns, at sched-rgn.c:2549
-- Summary: ICE in schedule_insns, at sched-rgn.c:2549 Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: b dot gunreben at web dot de CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: hppa-suse-linux-gnu GCC host triplet: hppa-suse-linux-gnu GCC target triplet: hppa-suse-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21122