EricWF added a comment. It seems like weird usages of `_LIBCPP_ASSERT` in `<string_view>` are causing this problem. Specifically the usages in `<string_view>` attempt to use `_LIBCPP_ASSERT` in C++11 constexpr functions and this currently does not work.
For now I've reverted this change in r292923. https://reviews.llvm.org/D29063 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits