llvm-project

f2b20d34 - [Flang][OpenMP][Dialect] Swap to using MLIR dialect enum to encode map flags (#164043)

[Flang][OpenMP][Dialect] Swap to using MLIR dialect enum to encode map flags (#164043) This PR shifts from using the LLVM OpenMP enumerator bit flags to an OpenMP dialect specific enumerator. This allows us to better represent map types that wouldn't be of interest to the LLVM backend and runtime in the dialect. Primarily things like ref_ptr/ref_ptee/ref_ptr_ptee/atach_none/attach_always/attach_auto which are of interest to the compiler for certrain transformations (primarily in the FIR transformation passes dealing with mapping), but the runtime has no need to know about them. It also means if another OpenMP implementation comes along they won't need to stick to the same bit flag system LLVM chose/do leg work to address it.