samitolvanen added a comment.

In D122673#3443498 <https://reviews.llvm.org/D122673#3443498>, @aaron.ballman 
wrote:

> I tend to be very wary of modifying the type system with attributes -- 
> questions always arise of what the type system effects are of the attribute. 
> e.g., does it impact overload sets or template specialization? Name mangling? 
> If it doesn't have type system impacts... why does it need to be in the type 
> system at all? This also matters because adding more bits to types can have 
> unintended side effects like accidentally reducing the depth of template 
> instantiations we can process (because of the extra memory pressure). So 
> while I'm not certain what you and @pcc  talked about, it does seem like an 
> approach at least worth thinking about, especially because this patch needs 
> to bump the size of `Type`.

Sure, I agree. I'll take a look at the built-in approach. Do you have any 
thoughts about reusing `nocf_check`, which is essentially identical to this 
proposed attribute, just currently limited to x86 CET?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122673/new/

https://reviews.llvm.org/D122673

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