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NEON intrinsics are useful because they remove the need for manual register allocation, and the resulting code can be re-compiled and optimized for different micro-architectures, and shared between arm64 and 32-bit ARM. However, the strong typing of the vector variables can lead to incomprehensible gibberish, as is the case with the new CRC64 implementation. To address this, let's repaint all variables as uint64x2_t to minimize the number of vreinterpretq_xxx() calls, and to be able to rely on the ^ operator for exclusive OR operations. This makes the code much more concise and readable. While at it, wrap the calls to vmull_p64() et al in order to have a more consistent calling convention, and encapsulate any remaining vreinterpret() calls that are still needed. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20260330144630.33026-11-ardb@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>