[llvm] [LoopUnroll] Structural cost savings analysis for full loop unrolling (PR #114579)

[Lucas Ramirez via llvm-commits]

lucas-rami wrote:

This is just addressing the inline remarks, I am still thinking of solutions on the larger issue of improving the heuristics to avoid catastrophic unrolling.

https://github.com/llvm/llvm-project/pull/114579