[PATCH] D57180: [LV] Avoid adding into interleaved group in presence of WAW dependency

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

> ! In D57180#1380108 <https://reviews.llvm.org/D57180#1380108>, @hsaito wrote:
>  Anyway, do we ever deal with so many loads/stores for this efficiency to avoid extra scanning to actually matter? I'm just curious.

I'd say usually the number would be quite small and there would be no significant compile time problem. But it is not impossible to hit a worst case scenario, given the wide range of frontends and source code that gets thrown at LLVM. Also, compile time is a key metric for some users and unnecessarily wasting a bit here and there leads to a death by a thousand paper cuts :)


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  https://reviews.llvm.org/D57180/new/

https://reviews.llvm.org/D57180