[PATCH] D50914: [RegisterCoalescer] Fix for assert in removePartialRedundancy

[Matthias Braun via Phabricator via llvm-commits]

MatzeB added a comment.

It would help review if you could describe the exact situation this happens. I am wondering:

- Why isn't this fix necessary in the main liverange?
- Is the fix only necessary for `removePartialRedundancy()` or should be `pruneValue()` or `extendToIndices()` so it applies to all similar situations?


Repository:
  rL LLVM

https://reviews.llvm.org/D50914