[llvm] [RISCV][CFI] add function epilogue cfi information (PR #110234)

[via llvm-commits]

dlav-sc wrote:

> Does this resolve the issues that caused this to get removed originally https://reviews.llvm.org/D69723

I didn't know about these attempts, `llvm/test/CodeGen/RISCV/frame-info.ll` looks good now because of the shrink-wrap optimization, but without shrink-wrap it breaks down indeed.

> Could you take a look this https://reviews.llvm.org/D114545? and try to enable that for RISC-V to address the issue that Craig mention.

Thanks, I'll try

https://github.com/llvm/llvm-project/pull/110234