mbenfield added a comment.

In D100581#2699412 <https://reviews.llvm.org/D100581#2699412>, @xbolva00 wrote:

> I am a little bit worried that another off by default warning is not ideal 
> from user point of view. Either the user simply would fail to find out that 
> there is a new option or will be surprised that gcc fires and clang does not 
> even when we claim we implemented this “gcc’s” warning.

Understood. How about putting `-Wunused-but-set-parameter` in `-Wextra` (which 
is what clang does for `-Wunused-parameter`) and `-Wunused-but-set-variable` in 
`-Wunused` (which is what gcc does)? I don't know why the parameter ones go in 
`-Wextra` and the variable ones go in `-Wunused`, but this seems most 
consistent with currrent diagnostic groups.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D100581/new/

https://reviews.llvm.org/D100581

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