[clang] [flang] [llvm] [Flang][LoopUnroll][Transforms] Add LoopUnrollForVectorization pass (PR #202444)

[Nikita Popov via cfe-commits]

https://github.com/nikic commented:

Why does this need to be a separate pass rather than part of full loop unrolling?

https://github.com/llvm/llvm-project/pull/202444