kito-cheng wrote:

> @kito-cheng I need your input on this, since this would require a few updates 
> on various PRs to the RISC-V specs.

Yeah, I just chat with Craig, I think that right way to go, and actually the PR 
in riscv-toolchain-conventions I has implicitly allow that, I mean I only write 
`-fcf-protection=return` require `zimop`, and didn't say 
`-fcf-protection=branch` require `zicfilp`, so yeah, go ahead to drop the 
requirement of `zicfilp`, Craig and me will fix that on the back-end side :P


[1] https://github.com/riscv-non-isa/riscv-toolchain-conventions/pull/54  

https://github.com/llvm/llvm-project/pull/109600
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