On 3/17/19 9:58 PM, Florian Klämpfl wrote:
Am 17.03.19 um 21:47 schrieb Martok:
Am 17.03.2019 um 18:57 schrieb Florian Klämpfl:
How is it better than intrinsics support (similiar to gcc/icc etc.)?
It *exists*?
Remember how long it took to get PopCnt support?
PopCnt is not really an intrinsic as it has a fallback counter part
and works on all platforms. Intrinsic means that it is really mapped
directly to the CPU instruction without any fallbacks.
As the branch of Jeppe shows, it is pretty easy, just requires some
continuous work.
As far as I recall there were some issues in argument passing and
handling the new __mm128 type that were a little annoying. But it might
be fairly easy to bring back up to speed again.
How about the rest of the BMI? > TBM? AES-NI? Newer AVX?
See above.
Agreed if that's the route that's taken. It's my feeling that the newer
extensions took a much more regular/orthogonal route than the old weird
MMX and SSE forms.
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