Displaying 2 results from an estimated 2 matches for "vbmi2".
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bmi2
2020 Jul 23
1
New x86-64 micro-architecture levels
...t's exactly the problem. These names should _not_ be
descriptive, because any description invokes a wrong feeling of precision.
E.g. what Florian already mentioned: sse4 - does it imply 4.1 and 4.2, or
avx512: what of F, CD, ER, PF, VL, DQ, BW, IFMA, VBMI, 4VNNIW, 4FMAPS,
VPOPCNTDQ, VNNI, VBMI2, BITALG, VP2INTERSECT, GFNI, VPCLMULQDQ, VAES does
that one imply (rhethorical question, list shown just to make sillyness
explicit).
Regarding precision: I think we should rule out any mathematically correct
scheme, e.g. one in which every ISA subset gets an index and the directory
name conta...
2020 Jul 21
7
New x86-64 micro-architecture levels
* Premachandra Mallappa:
> [AMD Public Use]
>
> Hi Floarian,
>
>> I'm including a proposal for the levels below. I use single letters for them, but I expect that the concrete implementation of this proposal will use
>> names like “x86-100”, “x86-101”, like in the glibc patch referenced above. (But we can discuss other approaches.)
>
> Personally I am not a big