[llvm] [Arm] Control forced unrolling of small loops (PR #170127)

[David Green via llvm-commits]

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@@ -111,12 +111,16 @@ Changes to the AArch64 Backend
 * `FEAT_TME` support has been removed, as it has been withdrawn from
    all future versions of the A-profile architecture.
 
+* Allow forced unrolling of small loops. Threshold controlled by flag `aarch64-force-unroll-threshold`
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davemgreen wrote:

I'm not sure we need to add release notes for what is essentially a debug option and isn't guaranteed to be stabled across releases.

https://github.com/llvm/llvm-project/pull/170127