[PATCH] D102116: [LoopIdiom] 'logical right-shift until zero' ('count active bits') "on steroids" idiom recognition.

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

@craig.topper ?

In D102116#2757904 <https://reviews.llvm.org/D102116#2757904>, @zhuhan0 wrote:

> LGTM.

Thanks for taking a look!

In D102116#2752152 <https://reviews.llvm.org/D102116#2752152>, @lebedev.ri wrote:

> Hmm, looks like i might also need at least the "[shifty] count leading zeros" variation of this.

... and i guess it might be an extension of `recognizeShiftUntilBitTest()`.


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https://reviews.llvm.org/D102116