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Commit 72e242a2 authored by Simon Pilgrim's avatar Simon Pilgrim
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[X86][AVX] canonicalizeShuffleMaskWithHorizOp - improve support for 256/512-bit vectors 

Extend the HOP(HOP(X,Y),HOP(Z,W)) and SHUFFLE(HOP(X,Y),HOP(Z,W)) folds to handle repeating 256/512-bit vector cases.

This allows us to drop the UNPACK(HOP(),HOP()) custom fold in combineTargetShuffle.

This required isRepeatedTargetShuffleMask to be tweaked to support target shuffle masks taking more than 2 inputs.
parent 81900dc4
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