[llvm] ValueTracking: Use fcAllFlags for unknown value (PR #66393)

[Jay Foad via llvm-commits]

jayfoad wrote:

> > Well I still don't get what kind of caller could use the returned mask without also checking the returned Value. An example might help.
> 
> I'm not actually doing this for the benefit of the caller, I'm trying to avoid confusion in the implementation itself

Then I don't get what you meant by "such that the value is always directly usable without checking the returned value".

https://github.com/llvm/llvm-project/pull/66393