[llvm] Enhance RISCV machine outlining to support a tailcall strategy. (PR #117526)

[Owen Anderson via llvm-commits]

resistor wrote:

> #115297 is already an attempt to do this. Putting this here in case you were not aware of it.

No, I wasn't aware. Thank you for pointing it out.

https://github.com/llvm/llvm-project/pull/117526