[PATCH] D125287: [SLP] Improve root steering by building actual trees instead of calling the look-ahead heuristic

[Vasileios Porpodas via Phabricator via llvm-commits]

vporpo added subscribers: dmgreen, RKSimon.
vporpo added a comment.

I think that providing a `buildTreeFastAndGetCost()` style of function is a decent solution for these types of problems, but I guess this needs more discussion. Adding @RKSimon and @dmgreen .


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D125287/new/

https://reviews.llvm.org/D125287