[PATCH] DAGCombiner: fold (or (and X, M), (and X, N)) -> (and X, (or M, N))

[Matt Arsenault]

Evergreen tests are a huge pain to update. There aren't any sub 32-bit loads or stores, so every operation is lowered to a 32-bit operation with masking. These changes are probably fine, although for what these tests seem to really be checking they should do something else that really requires the upper bits to be zeroed.


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  rL LLVM

http://reviews.llvm.org/D7063

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