[PATCH] D32563: Add LiveRangeShrink pass to shrink live range within BB.

[Dehao Chen via Phabricator via llvm-commits]

danielcdh added a comment.

I've updated the patch to implement this in Machine Level. The down side is that it needs to update a lot of unittests especially those autogenerated llc tests.

At this point, the patch is well tested with internal google workload, and seems to be valid. But I may ignore other subtle cases that's not covered by my testing. I'd appreciate if someone can help point out.

Thanks,
Dehao


https://reviews.llvm.org/D32563