yonghong-song added a comment.

In D131468#3708977 <https://reviews.llvm.org/D131468#3708977>, @pengfei wrote:

> D124435 <https://reviews.llvm.org/D124435> is going to change the assumption 
> :)

Thanks for the pointer. So looks like there is an effort to always do 
sign/zero-extension in callee. If the default is not to do extension in callee, 
we could change default value in BPF related codes, or we could implement bpf 
target specific code like this patch.

I guess I only need to focus on the func return value for now which is my focus 
any way.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D131468/new/

https://reviews.llvm.org/D131468

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