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Commit 37c9034b authored by Simon Pilgrim's avatar Simon Pilgrim
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[DAGCombiner] Correctly extract the ConstOrConstSplat shift value for SHL nodes 

We were failing to extract a constant splat shift value if the shifted value was being masked.

The (shl (and (setcc) N01CV) N1CV) -> (and (setcc) N01CV<<N1CV) combine was unnecessarily preventing this.

llvm-svn: 286454
parent c16824d2
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