[llvm] [AMDGPU][TTI] Threshold bonus to loops whose unrolling makes nested loops unrollable (PR #114579)

[Shilei Tian via llvm-commits]

shiltian wrote:

I agree with @arsenm that this should go to a target independent part. If you don't want to break anything existing, the simplest solution would be to check the recurrence of the new argument, and only proceed when it is set.

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