[llvm] [AArch64] C1-Ultra Scheduling model (PR #182251)

[Asher Dobrescu via llvm-commits]

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Asher8118 wrote:

I think this test is based on the one under `llvm/test/tools/llvm-mca/AArch64/Olympus`. Those tests need refactoring to use the new Inputs as well. Neoverse tests are also missing flag manipulation tests. But that is outside the scope of this PR.

https://github.com/llvm/llvm-project/pull/182251