http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60155
--- Comment #2 from John David Anglin <danglin at gcc dot gnu.org> --- Breakpoint 1, get_pressure_class_and_nregs (insn=0xfab51d98, nregs=0xfaf028c0) at ../../gcc/gcc/gcse.c:3459 3459 gcc_assert (set != NULL_RTX); (gdb) p debug_rtx (insn) (insn 212 211 213 18 (parallel [ (set (reg/v:SI 114 [ num ]) (plus:SI (reg/v:SI 114 [ num ]) (const_int 1 [0x1]))) (trap_if (ne (plus:DI (sign_extend:DI (reg/v:SI 114 [ num ])) (sign_extend:DI (const_int 1 [0x1]))) (sign_extend:DI (plus:SI (reg/v:SI 114 [ num ]) (const_int 1 [0x1])))) (const_int 0 [0])) ]) ../ssh-keygen.c:830 113 {addvsi3} (nil)) $1 = void