MIPS_ASE_VZ
#define cpu_has_vz __ase(MIPS_ASE_VZ)
c->ases &= ~MIPS_ASE_VZ; /* VZ of Loongson-3A2000/3000 is incomplete */
c->ases |= MIPS_ASE_VZ;
if (ases & MIPS_ASE_VZ)