Re: What CPU extensions can we assume are available by arch?

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Jun Aruga <jaruga@xxxxxxxxxx> writes:

> You do not need to care about the availability by arch or compiler
> when using this library.

As far as I can tell, it doesn't do dynamic dispatch.  Experimentally,
if you build with -mavx2 and run on ivybridge (or for skx and run on
haswell), the test code generates illegal instruction errors.  It's some
time ago since I looked at it, and I don't remember, but that's probably
why I thought it wasn't very useful, apart from only having x86 and arm
support.

Note also that there's typically rather more than SIMD to consider for
different micro-architectures, particularly fitting the memory
hierarchy.
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