[PATCH] D147968: [TTI][BPF]: Undo specific transform-preventing passes and add TTI hooks

[Jose E. Marchesi via Phabricator via llvm-commits]

jemarch added a comment.

In my opinion this new approach of using target hooks is way better than trying to amend the effect of certain passes by adding "counter passes", which is not only a moving target, but also fragile and IMO a waste of effort.  We do have the same problem with the GCC BPF backend, and will be using a similar strategy to  what Yonghong is proposing here.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D147968/new/

https://reviews.llvm.org/D147968