[llvm] [AArch64] Enable unrolling for small multi-exit loops (PR #131998)

[Florian Hahn via llvm-commits]

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@@ -4528,6 +4528,88 @@ getFalkorUnrollingPreferences(Loop *L, ScalarEvolution &SE,
   }
 }
 
+static bool shouldUnrollLoopWithInstruction(Instruction &I,
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fhahn wrote:

If not inlined back, would be good to doucment.

https://github.com/llvm/llvm-project/pull/131998