Simon Pilgrim caacf8685a [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.

2024-05-04 12:03:10 +01:00

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