[PATCH] D67948: [LV] Interleaving should not exceed estimated loop trip count.

[Aaron H Liu via Phabricator via llvm-commits]

AaronLiu added a comment.

In D67948#1731021 <https://reviews.llvm.org/D67948#1731021>, @hsaito wrote:

> We have observed some performance regressions, presumably because the vectorized code started to kick-in on short estimated trip count loops (as opposed to skipping vector code and execute scalar code). We'll try following up with cost model tuning. I'm not too surprised if others also hit a similar issue. Overall, though, that's the right direction to head to.


@hsaito: We also observed some performance regressions. But with the option turns on in patch https://reviews.llvm.org/D81416, the benchmark not only recover the regression but also achieve more. Can you review D81416 <https://reviews.llvm.org/D81416>? Thanks!


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