[PATCH] D13197: AMDGPU: Move SIFixSGPRLiveRanges to be a regalloc pass

[Matt Arsenault via llvm-commits]

arsenm added a comment.

In http://reviews.llvm.org/D13197#254947, @MatzeB wrote:

> Note that long-term we plan to remove the LiveVariables analysis and just keep LiveIntervals around; though I don't see this happening soon as  I don't see an incentive to actually do the work of fixing TwoAddressInstructions and PhiElimination to use LiveIntervals...


I'm kind of confused what the relationship between LiveVariables and LiveIntervals is, but I've seen the comments about removing LiveVariables. LiveIntervals seems to require LiveVariables, but then the calculation of LiveIntervals seems to clear kill flags?


http://reviews.llvm.org/D13197