Revert r298711 "[InstCombine] Provide a way to calculate KnownZero/One for Add/Sub in SimplifyDemandedUseBits without recursing into ComputeKnownBits"

Tsan bot is failing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298745 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed