hahnjo wrote: > But my point is that we can't land that if we don't understand what's going > wrong without that patch.
We understand that very well and it's described in https://reviews.llvm.org/D153003 as well as the surrounding discussions: because of the way that `ODRHash` works, template template arguments `A` and `B` will hash to different values, even if `using A = B`. However, for template specializations, we require them to hash to the same value (with some form of normalization) or we won't find nor load the right specializations. That's why I said that IMHO `ODRHash` is not the right tool for the job here, which follows directly from an old comment of yours: https://reviews.llvm.org/D153003#4427412 > An important node here is that ODRHash is used to check the AST Nodes are > keeping the same across compilations. There is gap to use ODRHash to check > the semantical equality. (and IIRC that's the same direction that Richard was going) https://github.com/llvm/llvm-project/pull/76774 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits