ID_AA64PFR0_EL1_FP
switch (__SHIFTOUT(id->ac_aa64pfr0, ID_AA64PFR0_EL1_FP)) {
if (SO_EQ(pfr0, ID_AA64PFR0_EL1_FP, ID_AA64PFR0_EL1_FP_IMPL))
if (SO_EQ(pfr0, ID_AA64PFR0_EL1_FP, ID_AA64PFR0_EL1_FP_HP))