Yunzezhu added a comment.

In D151867#4398483 <https://reviews.llvm.org/D151867#4398483>, @asb wrote:

> Could you please post a separate patch that has a test that will show the 
> codegen change (and demonstrate how it is unchanged when zbb or xtheadbb)?

Sure. I post a patch to demonstrate current codegen behavior for clz/ctz 
intrinsics when has ebb or xtheadbb: https://reviews.llvm.org/D152250.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D151867/new/

https://reviews.llvm.org/D151867

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