https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112469
--- Comment #4 from JuzheZhong <juzhe.zhong at rivai dot ai> --- vector(8) int vect_prephitmp_11.23; is gimplified from .COND_NEG (_55, vect__29.18_40, { -1, -1, -1, -1, -1, -1, -1, -1 }) into vect_prephitmp_11.23_50 to { 4294967295, 4294967294, 4294967293, 4294967292, 4294967291, 4294967290, 4294967289, 4294967288 } vector(8) unsigned int vect__29.18; Look like one is int, the other is unsigned int ?