[Hexagon] Maintain kill flags through splitting in expand-condsets

Do not use LiveIntervals to recalculate kills, because that cannot be
done accurately without implicit uses on predicated instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@285409 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed