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Unverified Commit caacf868 authored by Simon Pilgrim's avatar Simon Pilgrim Committed by GitHub
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[DAG] Fold freeze(shuffle(x,y,m)) -> shuffle(freeze(x),freeze(y),m) (#90952) 

If the shuffle mask contains no undef elements, then we can move the freeze through a shuffle node.

This requires special case handling to create a new ShuffleVectorSDNode.

Includes VECTOR_SHUFFLE support for isGuaranteedNotToBeUndefOrPoison  / canCreateUndefOrPoison.
parent 1e3c630f
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