Multiple versions of gcc give an ICE when compiling the attached preprocessed version of the FreeBSD des.c. The following is produced by gcc 4.2.2
$ h8300-rtems4.9-gcc -O2 -c des1.c des1.c: In function 'des_init': des1.c:4246: internal compiler error: in tree_low_cst, at tree.c:4554 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. -- Summary: ICE during build of DES Product: gcc Version: 4.2.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: joel at gcc dot gnu dot org GCC target triplet: h8300*-*-rtems* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33803