[PATCH] D113291: [AggressiveInstCombine] Lower Table Based CTTZ and enable it for AARCH64 in -O3

Djordje Todorovic via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri May 27 07:19:32 PDT 2022


djtodoro added a comment.

Thanks a lot for the comments! Can someone please sum the things up that need to be done for this?

By implementing this in the `CodeGenPrepare` doesn't include/imply that we should get rid of the call to `TTI.preferCTTZLowering()`.
If we decide to go with the unconditional (not to care about Target) cttz lowering and to get rid of the call to `TTI.preferCTTZLowering()`, what should be done?


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https://reviews.llvm.org/D113291



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