[llvm] [MachineCopyPropagation, Scheduler] Detect and fix suboptimal instruction order to enable optimizations (PR #98087)

[Gábor Spaits via llvm-commits]

spaits wrote:

@michaelmaitland Thank you very much for your response. I will address your review in more detail tonight or tomorrow morning (Central European Time).

I have looked at the explanation. I fixed the non existent instruction number. I have also took another deeper look at the explanation and added the type of dependency (true, anti and out) to each sentence (at least I hope each sentence :) ) in which I talk about dependencies.

I am sorry for the spelling in my description I have fixed that.

https://github.com/llvm/llvm-project/pull/98087