std::optional::value() has undesired exception checking semantics and is unavailable in older Xcode (see _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS). The call sites block std::optional migration.
Toy Tutorial
This contains sample code to support the tutorial on using MLIR for building a compiler for a simple Toy language.
See docs/Tutorials/Toy at the root of the project for more informations.