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Author SHA1 Message Date
Benjamin Kramer 7a74bd4703 InstCombine: Replace a hand-rolled version of isKnownToBeAPowerOfTwo with the real thing. 
llvm-svn: 199604
 2014-01-19 16:48:41 +00:00
Nadav Rotem 0ed2fdb5af 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). 
llvm-svn: 194525
 2013-11-12 22:38:59 +00:00