[PATCH] D92068: [MachineCombiner] Add MustReduceRegisterPressure goal

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

I'm not too familiar with MIR and I have not worked on MachineCombiner in a long time, so someone else should probably have a look too.

1. Why are the `killed` and `dead` flags changing in the tests?
2. Is there compile-time increase from having the extra passes (Slot index numbering, Live Interval Analysis, Machine Trace Metrics) even for targets that do not enable the MustReduceRegisterPressure objective?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D92068/new/

https://reviews.llvm.org/D92068