[PATCH RFC 1/9] lib/lz4: import upstream LZ4 sources verbatim

[Sergey Senozhatsky]

On (26/09/25 13:27), Michal Wilczynski wrote:
[..]
> +#ifndef LZ4_FAST_DEC_LOOP
> +#  if defined __i386__ || defined _M_IX86 || defined __x86_64__ || defined _M_X64
> +#    define LZ4_FAST_DEC_LOOP 1
> +#  elif defined(__aarch64__) && defined(__APPLE__)
> +#    define LZ4_FAST_DEC_LOOP 1
> +#  elif defined(__aarch64__) && !defined(__clang__)
> +     /* On non-Apple aarch64, we disable this optimization for clang because
> +      * on certain mobile chipsets, performance is reduced with clang. For
> +      * more information refer to https://github.com/lz4/lz4/pull/707 */
> +#    define LZ4_FAST_DEC_LOOP 1
> +#  else
> +#    define LZ4_FAST_DEC_LOOP 0
> +#  endif
> +#endif

I just checked https://github.com/lz4/lz4/pull/707 and it seems that
LZ4_FAST_DEC_LOOP is enabled on aarch64 now, but we still disable it.
Am I missing something?