[PATCH] D45834: [TTI] Add a hook to TTI for choosing scalarized shuffle-reduction sequence for reduction idiom

[Farhana Aleen via Phabricator via llvm-commits]

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FarhanaAleen added a comment.

Thanks Hideki, I will think about your suggestion.

> BTW, have you looked at ARM's last value compute experimental intrinsic: e.g., int_experimental_vector_reduce_add? If you don't mind losing IR-level optimizations for reduction last value code, this is the easiest way to do custom lowering in the Target. I don't know whether this meets your needs, but I thought it's worth mentioning.

Yes, I have. They are my fallback option :).


https://reviews.llvm.org/D45834