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

[Aaron H Liu via Phabricator via llvm-commits]

AaronLiu added a comment.

In D81416#2230628 <https://reviews.llvm.org/D81416#2230628>, @fhahn wrote:

> Just to double check, wouldn't it be sufficient if loop-unroll would unroll the loop? Or is this not happening? It seems like `loop-unroll` would unroll the loop in the test-case.

It would unroll the loop in the testcase, but it will not break dependence and expose ILP, will not help performance, and actually unroll hurt performance in this case.


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