[llvm] [AArch64] Unrolling of loops with vector instructions. (PR #147420)

[Florian Hahn via llvm-commits]

fhahn wrote:

It also looks like there are a few test failures in the pre-commit checks, which need checking

```
2025-07-08T07:01:02.7480047Z Failed Tests (3):
2025-07-08T07:01:02.7480307Z   LLVM :: Transforms/LoopUnroll/full-unroll-avoid-partial.ll
2025-07-08T07:01:02.7480677Z   LLVM :: Transforms/LoopUnroll/gh-issue77118-broken-lcssa-form.ll
2025-07-08T07:01:02.7481083Z   LLVM :: Transforms/LoopUnroll/guard-cost-for-unrolling.ll
```

https://github.com/llvm/llvm-project/pull/147420