[PATCH] D81416: [LV][SLP] Interleave to expose ILP for small loops with scalar reductions.

[Aaron H Liu via Phabricator via llvm-commits]

AaronLiu added a comment.

In this patch we "Interleave to expose ILP". The whole purpose of this patch is to "expose ILP", and the approach is to "Interleave".

- I worry about that if we remove those testcases, no vectorization(parallelism) results due to this patch can be seen, and people will have no idea where do we "expose ILP"?
- We have ever discussed that what @spatel suggested adding two testcases under PhaseOrdering to show the baseline results with the option in this patch on and off "do make sense".
- The purpose of adding lit tests is to catch future regressions, i.e., if someone make the vectorization **not** working, we will catch it with the testcases we added.


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  https://reviews.llvm.org/D81416/new/

https://reviews.llvm.org/D81416