AaronBallman wrote:

> Also, this is ANOTHER bit on function types that we're using for CFI. I'm 
> wondering if this is actually a generally useful enough feature to be using 
> this much compiler resources.
> 
> @AaronBallman ?

I think CFI is pretty important for security posture (it basically tries to 
ensure that indirect jumps don't go to unintended locations). So I think it's 
useful, but I am also a bit worried that we're missing the big picture of how 
much work needs to be done to fully support CFI. @bwendling do you expect to 
land more related attributes after this one?

https://github.com/llvm/llvm-project/pull/141846
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