[PATCH] CodeGen: Emit warnings when dropping profile data during PGO

[Justin Bogner]

Justin Bogner <mail at justinbogner.com> writes:
> Bob Wilson <bob.wilson at apple.com> writes:
>>>> After some thought, I think the parallel with the -f name is
>>>> worthwhile. I've gone with profile-instr-dropped
>>> 
>>> I might be bike shedding here, but is -Wprofile-instr-out-of-date
>>> better?  That matches the actual message you went with below.
>>
>> Yes, I like -Wprofile-instr-out-of-date much better than -dropped.
>
> It's a bit long, but I don't have anything better. Sure.

Oops, I never sent an updated patch! Is this okay to commit?

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