[PATCH] D134982: [X86] Add support for "light" AVX

[Ilya Tokar via Phabricator via llvm-commits]

TokarIP added a comment.

In D134982#3999680 <https://reviews.llvm.org/D134982#3999680>, @lebedev.ri wrote:

> I think `LightAVX` is a misnomer. If we want to
> always utilize full potential of vector load-store unit,
> then the Tuning should say as much.

I'll probably expand this to other "light" AVX instructions (like vpcmpeq for memcmp intrinsic) in the future.
Also we don't want the full width, 512-bit load/stores still cause some frequency drop on skylake.


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