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Commit 23df4e4a authored by Andrea Di Biagio's avatar Andrea Di Biagio
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Teach the DAGCombiner how to fold 'vselect' dag nodes according 

to the following two rules:
  1) fold (vselect (build_vector AllOnes), A, B) -> A
  2) fold (vselect (build_vector AllZeros), A, B) -> B

llvm-svn: 198777
parent 2210624d
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