AaronBallman wrote: > Ok, I added the release note. > > > we'd use ABI version tags for it at that point. > > @AaronBallman Could you please elaborate a bit more on that?
We have a command line option, `-fclang-abi-compat=`, which lets the user say "I want to be ABI compatible with Clang version X". In code, we have `LangOptions::ClangABICompat` which tracks that information so we can either go down the "old path" or the "new path" as needed, like in: https://github.com/llvm/llvm-project/blob/edf636afe405ff90da7bf1834aa334bd52bc861e/clang/lib/AST/DeclCXX.cpp#L1002 https://github.com/llvm/llvm-project/pull/139566 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits