[llvm] [llvm-mca] Account for AcquireAtCycles in llvm-mca (PR #80742)

[Andrea Di Biagio via llvm-commits]

adibiagio wrote:

> Thank you for the patch @michaelmaitland! When talking about the AcquireAtCYcle/ReleaseAtCycle change with @adibiagio , he mentioned that llvm-mca needed updating to account for this.
> 
> Unfortunately I do now know enough about LLVM-MCA to be able to tell whether what you are doing is correct or not.
> 
> What puzzles me are the changes in the tests, because I was expecting a NFC for the rework.
> 
> I kindly ask you to seek @adibiagio feedback for moving forward.

I'll review the patch today :-).

Thanks @michaelmaitland for working on this!

https://github.com/llvm/llvm-project/pull/80742