[llvm] [BOLT][AArch64] Implemented createDummyReturnFunction. (PR #96626)

[Paschalis Mpeis via llvm-commits]

paschalis-mpeis wrote:

Hi  samolisov,
Thanks for your review; I hope I've addressed your concerns.

Since you requested some minor generic refactoring, I renamed the function to `createDummyReturn`, as we are simply populating the function body in this case. Let me know if you think it needs more adjustments.

Also, I've added you as a reviewer to #83394 a few days back (the parent PR this patch is stacked upon), in case you wanted to have a look. In either case, it looks like there is a consensus and that patch is going forward soon.

https://github.com/llvm/llvm-project/pull/96626