[llvm] [LoopVectorize] Further improve cost model for early exit loops (PR #126235)

[David Sherwood via llvm-commits]

david-arm wrote:

> My thinking was pass to isOutsideLoopWorkProfitable instead of the legacy cost model, to avoid spreading new references of it

Perfect, thanks for clarifying!

https://github.com/llvm/llvm-project/pull/126235