[llvm-dev] [RFC] Turn the MachineOutliner on by default in AArch64 under -Oz

[David Green via llvm-dev]

> Porting the outliner on ARM is in my plans for this year (as discussed
> with other ARM folks at EuroLLVM last week), to avoid duplication is
> it ok for you if I work on it, David, Jessica ?

Yeah, sounds great to me. I had merely got as far as looking at the AArch64 code to see how easy it would be to copy, without any honest expectation of being able to look into it properly any time soon. I imagine there are plenty of pitfalls on Arm/Thumb that could make this difficult to get correct.

Thanks for working on it! Let us know how it goes and if we can do anything to help.
Dave