ID_AA64ISAR0_EL1_CRC32
switch (__SHIFTOUT(id->ac_aa64isar0, ID_AA64ISAR0_EL1_CRC32)) {
if (SO_EQ(isar0, ID_AA64ISAR0_EL1_CRC32, ID_AA64ISAR0_EL1_CRC32_CRC32X))