thakis added a comment.

Why do we emit this before C++20? It's only deprecated in C++20 onwards, no? 
Shouldn't this be default-enabled based off language version instead of being 
in -Wextra? No other language deprecation warning so far (register etc) has 
worked like this warning does.

(Also, this being in -Wextra has confused users for us: We added 
-Wno-deprecated-copy somewhere in our central build flags, and then some target 
added -Wextra later on and was confused that the -Wno-deprecated-copy flag 
didn't have an effect – but that's a minor point.)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D70342/new/

https://reviews.llvm.org/D70342



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