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Commit cc845e9d authored by Noah Goldstein's avatar Noah Goldstein Committed by Nikita Popov
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[InstCombine] Handle assume(X & Pow2 != 0) in computeKnownBits() 

If we know that X & Pow2 != 0, then the bit at that position is
known one.

Differential Revision: https://reviews.llvm.org/D140851
parent 43cf2f81
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