Simon Pilgrim 62e36b1207 [X86] canLowerByDroppingEvenElements - generalize to drop even or odd elements ...

This allows us to match shuffle<1,3,5,7,9,11,13,15> style shift+trunc/pack patterns as well as the existing shuffle<0,2,4,6,8,10,12,14> style shuffle trunc/pack patterns

In the future, interleaving patterns might benefit from an even more general implementation for higher strides

2022-01-18 15:07:24 +00:00

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