CaseyCarter added a comment. In https://reviews.llvm.org/D32385#745771, @EricWF wrote:
> So Itanium ABI has this quirk where trivial types are passed using different > conventions than non-trivial types. This means changing the triviality of > `std::optional` for any instantiation is potentially ABI breaking. I'll need > to do more investigation to find out how this will affect libc++, and if we > can take this change. libc++ committed to ABI stability for `optional`, a new feature of C++17, before the standard shipped? https://reviews.llvm.org/D32385 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
