I just tried to compile the Suse Linux package dialog-1.1-27.19 with the GNU C compiler version 4.4 snapshot 20081219.
calendar.c: In function 'dialog_calendar': calendar.c:356: internal compiler error: in insert_into_preds_of_block, at tree-ssa-pre.c:3131 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Preprocessed source code attached. Flag -O3 required. This bug seems to be not a duplicate of #38003. -- Summary: ice for legal code with -O3 Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: dcb314 at hotmail dot com GCC host triplet: x86_64-suse-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38608