[PATCH] D154738: [SLP]Introduce isLegalVectorOp to check if the vector instruction is going to be scalarized.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev added a comment.

In D154738#4648765 <https://reviews.llvm.org/D154738#4648765>, @RKSimon wrote:

> Yes, I'm happy to investigate this - it crosses over with another issue we're starting to hit that we need better methods to compare VF * scalar_cost vs vector_cost for cases where the throughput costs are below 1.0 (but clamped to 1)
>
> How dependent are you other patches on getting this patch in?

I don't have dependancy, this was just a finding after the discussion in another patch from Philip Reames


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