[PATCH] D114499: [GlobalISel] Fold or of shifts to funnel shifts.

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

> (or (shl x, amt), (lshr y, sub(bw, amt)) -> fshl(x, y)
> (or (shl x, sub(bw, amt), (lshr y, amt)) -> fshr(x, y)

Funnel shifts take three arguments "x, y, amt".


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  https://reviews.llvm.org/D114499/new/

https://reviews.llvm.org/D114499