[Zlib-devel] patch-in-progress: vectorized adler32 calculation

[Török Edwin]

On 2010-04-15 23:53, Stefan Fuhrmann wrote:
> Gilles Vollant wrote:
>> " I'm currently not decided whether to support MMX at all. It would
>> only be
>> used on processors older than 5 years, would get little test coverage and
>> yields only a modest performance improvement."
>>
>> I suggest you support even older processor (without MMX), without
>> performance consideration, just to not hang
> Today's code will always be there as a fallback
> since we have to support non-x86/x64 CPUs
> as well.For x86 there will be a #define for pre-
> 486 CPUs since they don't support CPUID.

FreeBSD and OpenSUSE users will love that.
Their gcc defaults to i386 IIRC.

Best regards,
--Edwin