I just tried to compile the Linux kernel 2.6.30 with the GNU C compiler version 4.5 snapshot 20091203 and the compiler said
drivers/scsi/bfa/bfad.c:196:1: error: definition in block 14 does not dominate use in block 19 for SSA_NAME: rc_4 in statement: # DEBUG rc => rc_4 drivers/scsi/bfa/bfad.c:196:1: internal compiler error: verify_ssa failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. Preprocessed source code attached. Flags -O2 -g required. I know this bug looks similar to #40676, but that was fixed months ago. -- Summary: another verify_ssa failure with -g -O2 Product: gcc Version: 4.5.0 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=42299
