[PATCH] D32605: Recognize CTLZ builtin

[Evgeny Stupachenko via Phabricator via llvm-commits]

evstupac added a comment.

In https://reviews.llvm.org/D32605#739873, @joerg wrote:

> What about platforms that don't have ctlz/ffs hardware support?


I can guard this. Or keep as is if we consider converting loop to countable is generally good. In this case builtin should be expanded at codegen in the most profitable way.


Repository:
  rL LLVM

https://reviews.llvm.org/D32605