llvm-project

b227fab5 - [NFC][LV] Introduce enums for uncountable exit detail and style (#184808)

[NFC][LV] Introduce enums for uncountable exit detail and style (#184808) Recursively splitting out some work from #183318; this covers the enums for early exit loop type (none, readonly, readwrite) and the style used (just readonly and masked-handle-ee-in-scalar-tail for now) and refactoring for basic use of those enums.