hans added a comment.

In D152495#4628785 <https://reviews.llvm.org/D152495#4628785>, @cor3ntin wrote:

> It is used, but only in an assert. Seems like the right fix!

I suppose it is technically, but I'm not sure the fix reads like an improvement 
to me... I guess that's often the case with unused variables vs. asserts though.

In D152495#4628870 <https://reviews.llvm.org/D152495#4628870>, @goncharov wrote:

> due to this change we have a enourmous number of new warnings, on the other 
> hand -Wunused-variable is a valuable warning. I am not sure what is the 
> policy and best practices for warnings but maybe there is a possiblity to 
> make a transition period for enabling this type of warning separetely and to 
> allow updating existing code?

The usual policy is to put new warnings behind new flags so users can disable 
them selectively. It gets trickier when it's existing warnings getting enhanced 
like this. Would it be possible to put this new functionality behind a flag?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D152495/new/

https://reviews.llvm.org/D152495

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