[PATCH] D150664: MachineCombiner: use height in improvesCriticialPathLen()

[Ramkumar Ramachandra via Phabricator via llvm-commits]

artagnon added a comment.

This patch gives us improvements on standard benchmarks like Embench.

A couple of things to note:

- I need some help with the height calculation, as it is wrong in some places.
- I've only updated the RISC-V tests. Will update tests for other architectures, once the patch is closer to final form.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D150664/new/

https://reviews.llvm.org/D150664