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Commit bab44a69 authored by Simon Pilgrim's avatar Simon Pilgrim
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[InstCombine] matchOrConcat - match BITREVERSE 

Fold or(zext(bitreverse(x)),shl(zext(bitreverse(y)),bw/2) -> bitreverse(or(zext(x),shl(zext(y),bw/2))

Practically this is the same as the BSWAP pattern so we might as well handle it.
parent 96c63f54
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