I just tried to compile Suse Linux package MozillaThunderbird-1.5.0.8-7 with the GNU C++ compiler version 4.3 snapshot 20070209.
The compiler said blocksort.c: In function 'mainSort': blocksort.c:805: internal compiler error: in vect_get_vec_def_for_stmt_copy, at tree-vect-transform.c:901 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. Preprocessed source code attached. Flags -ftree-vectorize -O2 required. -- Summary: ice for legal code with -ftree-vectorize -O2 Product: gcc Version: 4.3.0 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=30795
