[PATCH] Add a callback to FunctionPass to enable skipping execution on a per-function basis

[Marcello Maggioni]

Hi,

I'm very interested by this improvement too.

I have a pass that needs to run polling state from the subtarget , but I don't want to pull in all the target specific subtarget into my pass.

This would be very helpful for my case :)


http://reviews.llvm.org/D8717

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