khchen added a comment.

In D106347#2890123 <https://reviews.llvm.org/D106347#2890123>, @jrtc27 wrote:

> Why can't we just save target-features itself as a module flag instead of 
> inventing yet another equivalent encoding? Especially since a long bitfield 
> is brittle, you can't reorder or remove elements without breaking bitcode 
> compatibility.

I think the benefit of using bitfield is making link behavior simpler. I will 
try to investigate another link behavior to handle two different 
target-features strings especially have `+` or `-`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D106347/new/

https://reviews.llvm.org/D106347

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