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04a359f768
When performing a scalar comparison that feeds into a vector select, it's actually better to do the comparison on the vector side: the scalar route would be "CMP -> CSEL -> DUP", the vector is "CM -> DUP" since the vector comparisons are all mask based. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208210 91177308-0d34-0410-b5e6-96231b3b80d8
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