Fold (iszero(A&K1) | iszero(A&K2)) ->  (A&(K1|K2)) != (K1|K2) if we know that K1 and K2 are 'one-hot' (only one bit is on).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194525 91177308-0d34-0410-b5e6-96231b3b80d8