Function __crc32b 

pub fn __crc32b(crc: u32, data: u8) -> u32

🔬This is a nightly-only experimental API. (stdarch_arm_neon_intrinsics #111800)

Available on ARM and (AArch64 or ARM64EC or target feature v7) and (ARM or AArch64 or ARM64EC) and target feature crc only.

CRC32 single round checksum for bytes (8 bits). Arm’s documentation