[PATCH] D113291: [AggressiveInstCombine] Lower Table Based CTTZ

[Djordje Todorovic via Phabricator via llvm-commits]

djtodoro added a comment.

In D113291#3542941 <https://reviews.llvm.org/D113291#3542941>, @efriedma wrote:

> Concretely, my preferred solution looks something like:
>
> 1. Perform the transform unconditionally in AggressiveInstCombine (so this patch without the preferCTTZLowering() bits).

The latest update implements this.

> 2. Teach TargetLowering::expandCTTZ to emit a table lookup.




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